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Document and Entity Information - shares	9 Months Ended
Document and Entity Information - shares	Sep. 30, 2018	Oct. 29, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q3
Trading Symbol	COMM
Entity Registrant Name	CommScope Holding Company, Inc.
Entity Central Index Key	0001517228
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		192,223,144

Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Statement [Abstract]
Net sales	$ 1,150,405	$ 1,128,775	$ 3,510,778	$ 3,440,150
Operating costs and expenses:
Cost of sales	726,531	700,170	2,204,194	2,085,973
Selling, general and administrative	173,990	184,947	544,318	604,408
Research and development	44,807	44,599	142,436	140,569
Amortization of purchased intangible assets	65,782	68,271	199,453	202,890
Restructuring costs, net	7,070	5,360	19,738	24,521
Total operating costs and expenses	1,018,180	1,003,347	3,110,139	3,058,361
Operating income	132,225	125,428	400,639	381,789
Other income (expense), net	(2,379)	3,209	(4,490)	(9,248)
Interest expense	(66,122)	(61,798)	(186,655)	(192,769)
Interest income	1,882	1,180	5,373	3,784
Income before income taxes	65,606	68,019	214,867	183,556
Income tax expense	(1,763)	(16,862)	(51,367)	(43,373)
Net income	$ 63,843	$ 51,157	$ 163,500	$ 140,183
Earnings per share:
Basic	$ 0.33	$ 0.27	$ 0.85	$ 0.73
Diluted	$ 0.33	$ 0.26	$ 0.84	$ 0.71
Weighted average shares outstanding:
Basic	192,219	191,824	191,920	192,973
Diluted	195,359	195,815	195,370	197,387
Comprehensive income:
Net income	$ 63,843	$ 51,157	$ 163,500	$ 140,183
Other comprehensive income (loss), net of tax:
Foreign currency translation gain (loss)	(22,463)	47,087	(84,222)	174,187
Pension and other postretirement benefit activity	(1,079)	(353)	(3,802)	(1,082)
Gain (loss) on net investment hedge	192	(1,471)	2,645	(4,822)
Available-for-sale securities		(1,685)		(2,508)
Total other comprehensive income (loss), net of tax	(23,350)	43,578	(85,379)	165,775
Total comprehensive income	$ 40,493	$ 94,735	$ 78,121	$ 305,958

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Assets
Cash and cash equivalents	$ 352,397	$ 453,977
Accounts receivable, less allowance for doubtful accounts of $18,141 and $13,976, respectively	901,096	898,829
Inventories, net	490,767	444,941
Prepaid expenses and other current assets	123,277	146,112
Total current assets	1,867,537	1,943,859
Property, plant and equipment, net of accumulated depreciation of $425,577 and $390,389, respectively	445,746	467,289
Goodwill	2,858,640	2,886,630
Other intangible assets, net	1,420,677	1,636,084
Other noncurrent assets	125,696	107,804
Total assets	6,718,296	7,041,666
Liabilities and Stockholders' Equity
Accounts payable	441,409	436,737
Other accrued liabilities	323,211	286,980
Total current liabilities	764,620	723,717
Long-term debt	3,983,790	4,369,401
Deferred income taxes	97,849	134,241
Pension and other postretirement benefit liabilities	20,315	25,140
Other noncurrent liabilities	96,652	141,341
Total liabilities	4,963,226	5,393,840
Commitments and contingencies
Stockholders' equity:
Preferred stock, $.01 par value: Authorized shares: 200,000,000; Issued and outstanding shares: None
Common stock, $0.01 par value: Authorized shares: 1,300,000,000;Issued and outstanding shares: 192,222,782 and 190,906,110,	1,990	1,972
Additional paid-in capital	2,372,764	2,334,071
Retained earnings (accumulated deficit)	(226,494)	(395,998)
Accumulated other comprehensive loss	(171,982)	(86,603)
Treasury stock, at cost: 6,738,136 shares and 6,336,144 shares,	(221,208)	(205,616)
Total stockholders' equity	1,755,070	1,647,826
Total liabilities and stockholders' equity	$ 6,718,296	$ 7,041,666

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Statement Of Financial Position [Abstract]
Allowance for doubtful accounts receivable	$ 18,141	$ 13,976
Property, plant and equipment, accumulated depreciation	$ 425,577	$ 390,389
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	200,000,000	200,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	1,300,000,000	1,300,000,000
Common stock, shares issued	192,222,782	190,906,110
Common stock, shares outstanding	192,222,782	190,906,110
Treasury stock, shares	6,738,136	6,336,144

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Operating Activities:
Net income	$ 163,500	$ 140,183
Adjustments to reconcile net income to net cash generated by operating activities:
Depreciation and amortization	272,629	282,543
Equity-based compensation	33,723	31,572
Deferred income taxes	(32,616)	(19,976)
Changes in assets and liabilities:
Accounts receivable	(23,537)	59,054
Inventories	(65,798)	11,790
Prepaid expenses and other assets	(3,849)	(22,682)
Accounts payable and other liabilities	12,277	(178,505)
Other	5,555	31,426
Net cash generated by operating activities	361,884	335,405
Investing Activities:
Additions to property, plant and equipment	(55,448)	(51,152)
Proceeds from sale of property, plant and equipment	12,715	5,016
Proceeds upon settlement of net investment hedge	1,331
Cash paid for acquisitions, including purchase price adjustments, net of cash acquired		(105,249)
Other		9,898
Net cash used in investing activities	(41,402)	(141,487)
Financing Activities:
Long-term debt repaid	(550,000)	(805,379)
Long-term debt proceeds	150,000	780,379
Debt issuance and modification costs		(8,363)
Debt extinguishment costs		(14,800)
Cash paid for repurchase of common stock		(175,000)
Proceeds from the issuance of common shares under equity-based compensation plans	4,988	8,803
Tax withholding payments for vested equity-based compensation awards	(15,592)	(14,956)
Net cash used in financing activities	(410,604)	(229,316)
Effect of exchange rate changes on cash and cash equivalents	(11,458)	18,412
Change in cash and cash equivalents	(101,580)	(16,986)
Cash and cash equivalent at beginning of period	453,977	428,228
Cash and cash equivalents at end of period	$ 352,397	$ 411,242

Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings (Accumulated Deficit) [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock, at Cost [Member]
Beginning balance, Shares at Dec. 31, 2016		193,837,437
Issuance of shares under equity-based compensation plans, shares		2,117,965
Shares surrendered under equity-based compensation plans		(398,698)
Repurchase of common stock		(4,794,990)
Ending balance, Shares at Sep. 30, 2017		190,761,714
Beginning balance at Dec. 31, 2016		$ 1,950	$ 2,282,014	$ (589,556)	$ (285,113)	$ (15,211)
Issuance of shares under equity-based compensation plans		21	8,782
Equity-based compensation			31,656
Cumulative effect of change in accounting principle			295
Net income	$ 140,183			140,183
Cumulative effect of change in accounting principle				(206)
Other comprehensive income (loss), net of tax	165,775				165,775
Repurchase of common stock						(175,000)
Net shares surrendered under equity-based compensation plans						(14,956)
Ending balance at Sep. 30, 2017	$ 1,550,634	$ 1,971	2,322,747	(449,579)	(119,338)	(205,167)
Beginning balance, Shares at Dec. 31, 2016		193,837,437
Ending balance, Shares at Dec. 31, 2017	190,906,110	190,906,110
Beginning balance at Dec. 31, 2016		$ 1,950	2,282,014	(589,556)	(285,113)	(15,211)
Ending balance at Dec. 31, 2017	$ 1,647,826	$ 1,972	2,334,071	(395,998)	(86,603)	(205,616)
Ending balance, Shares at Sep. 30, 2017		190,761,714
Net income	51,157
Other comprehensive income (loss), net of tax	43,578
Ending balance at Sep. 30, 2017	$ 1,550,634	$ 1,971	2,322,747	(449,579)	(119,338)	(205,167)
Beginning balance, Shares at Dec. 31, 2017	190,906,110	190,906,110
Issuance of shares under equity-based compensation plans, shares		1,718,664
Shares surrendered under equity-based compensation plans		(401,992)
Ending balance, Shares at Sep. 30, 2018	192,222,782	192,222,782
Beginning balance at Dec. 31, 2017	$ 1,647,826	$ 1,972	2,334,071	(395,998)	(86,603)	(205,616)
Issuance of shares under equity-based compensation plans		18	4,970
Equity-based compensation			33,723
Net income	163,500			163,500
Cumulative effect of change in accounting principle				6,004
Other comprehensive income (loss), net of tax	(85,379)				(85,379)
Net shares surrendered under equity-based compensation plans						(15,592)
Ending balance at Sep. 30, 2018	$ 1,755,070	$ 1,990	2,372,764	(226,494)	(171,982)	(221,208)
Ending balance, Shares at Sep. 30, 2018	192,222,782	192,222,782
Net income	$ 63,843
Other comprehensive income (loss), net of tax	(23,350)
Ending balance at Sep. 30, 2018	$ 1,755,070	$ 1,990	$ 2,372,764	$ (226,494)	$ (171,982)	$ (221,208)

Background and Basis of Presentation

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Background and Basis of Presentation

1. BACKGROUND AND BASIS OF PRESENTATION

Background

CommScope Holding Company, Inc., along with its direct and indirect subsidiaries (CommScope or the Company), is a global provider of infrastructure solutions for the core, access and edge layers of communication networks. The Company’s solutions and services for wired and wireless networks enable high-bandwidth data, video and voice applications. CommScope’s global leadership position is built upon innovative technology, broad solution offerings, high-quality and cost-effective customer solutions, and global manufacturing and distribution scale.

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements reflect all adjustments of a normal, recurring nature that are, in the opinion of management, necessary for a fair presentation of the interim period financial statements. The results of operations for these interim periods are not necessarily indicative of the results of operations to be expected for any future period or the full fiscal year. Certain prior year amounts have been reclassified to conform to the current year presentation.

The unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (U.S. GAAP) for interim financial information and are presented in accordance with the applicable requirements of Regulation S-X. Accordingly, these financial statements do not include all of the information and notes required by U.S. GAAP for complete financial statements. These unaudited condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 (the 2017 Annual Report).

The significant accounting policies followed by the Company are set forth in Note 2 within the Company’s audited consolidated financial statements included in the 2017 Annual Report. Other than the changes described below to revenue recognition policies as a result of the adoption of Accounting Standards Update (ASU) No. 2014-09, Revenue from Contracts with Customers, there were no material changes in the Company’s significant accounting policies during the three or nine months ended September 30, 2018.

Revenue Recognition

The Company recognizes revenue based on the satisfaction of distinct obligations to transfer goods and services to customers. The majority of the Company’s revenue is from product sales. Revenue from product sales is recognized when control is transferred to the customer, typically upon either shipment or delivery. A minor portion of the Company’s revenue is derived from project contracts containing a combination of product and service obligations. Revenue from project contracts is recognized either at a point in time or over time using cost input methods, based on the specific terms of each contract.

For project contracts containing multiple distinct performance obligations, the transaction price is allocated based on the relative standalone estimated selling price of each performance obligation. The relative standalone selling price is determined using current price lists and observable pricing in separate contracts with similar customers. For performance obligations recognized over-time, judgment is required to evaluate assumptions, including the total estimated costs to determine progress towards completion of the performance obligation and to calculate the corresponding amount of revenue to recognize. If estimated total costs on any contract are greater than the net contract revenues, the entire estimated loss is recognized in the period the loss becomes known. The cumulative effects on revenue from revisions to total estimated costs are recorded in the period in which the revisions to estimates are identified and the amounts can be reasonably estimated.

The Company also recognizes revenue from other customer contract types, including licensing of intellectual property, software licensing and post-contract support (PCS) which may be sold as part of a bundled product offering or as a separate contract. For bundled product arrangements, the transaction price is allocated based on the relative standalone estimated selling price of each performance obligation. Distinct intellectual property obligations, including software, are considered functional in nature and are recognized as revenue at the point in time the customer receives the rights to use and benefit from the intellectual property or are determined using a usage-based royalty. PCS obligations are typically recognized over the term of the contract.

Revenue is measured based on the consideration to which the Company expects to be entitled, based on customer contracts. For sales to distributors, system integrators and value-added resellers (primarily for the CommScope Connectivity Solutions (CCS) segment), revenue is adjusted for variable consideration amounts, including estimated discounts, returns, rebates and distributor price protection programs. These estimates are determined based upon historical experience, contract terms, inventory levels in the distributor channel and other related factors. Adjustments to variable consideration estimates are recorded when circumstances indicate revisions may be necessary.

The Company records a contract asset for unbilled accounts receivable related to revenue that has been recognized in advance of consideration being unconditionally due from the customer, which is common for certain project contract performance obligations. Contract asset amounts are transferred to accounts receivable when the Company’s right to the consideration becomes unconditional, which varies by contract, but is generally based on achieving certain acceptance milestones.

A contract liability for deferred revenue is recorded when consideration is received or is unconditionally due from a customer prior to transferring control of goods or services to the customer under the terms of a contract. Deferred revenue balances typically result from advance payments received from customers for product contracts or from billings in excess of revenue recognized on project or services arrangements.

The Company includes shipping and handling costs billed to customers in net sales and includes the costs incurred to transport product to customers as cost of sales. Shipping and handling costs incurred after control is transferred to the customer are accounted for as fulfillment costs and are not accounted for as separate revenue obligations.

Concentrations of Risk and Related Party Transactions

Net sales to Anixter International Inc. and its affiliates (Anixter) accounted for 11% of the Company’s total net sales during both the three and nine months ended September 30, 2018. Net sales to Anixter accounted for 12% and 11% of the Company’s total net sales during the three and nine months ended September 30, 2017, respectively. Sales to Anixter primarily originate within the CCS segment. Other than Anixter, no direct customer accounted for 10% or more of the Company’s total net sales for the three or nine months ended September 30, 2018 or 2017.

Accounts receivable from Anixter accounted for 12% of the Company’s accounts receivable as of September 30, 2018. Other than Anixter, no direct customer accounted for 10% or more of the Company’s accounts receivable as of September 30, 2018.

Product Warranties

The Company recognizes a liability for the estimated claims that may be paid under its customer warranty agreements to remedy potential deficiencies of quality or performance of the Company’s products. These product warranties extend over periods ranging from one to twenty-five years from the date of sale, depending upon the product subject to the warranty. The Company records a provision for estimated future warranty claims as cost of sales based upon the historical relationship of warranty claims to sales and specifically identified warranty issues. The Company bases its estimates on assumptions that are believed to be reasonable under the circumstances and revises its estimates, as appropriate, when events or changes in circumstances indicate that revisions may be necessary. Such revisions may be material.

The following table summarizes the activity in the product warranty accrual, included in other accrued liabilities:

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2018			2017			2018			2017
Product warranty accrual, beginning of period	$	14,846		$	20,283		$	16,928		$	21,631
Provision for warranty claims		1,296			284			3,174			4,515
Warranty claims paid		(1,660	)		(2,033	)		(5,573	)		(7,751	)
Foreign exchange		(11	)		(62	)		(58	)		77
Product warranty accrual, end of period	$	14,471		$	18,472		$	14,471		$	18,472

Commitments and Contingencies

The Company is either a plaintiff or a defendant in certain pending legal matters in the normal course of business. The Company may also be called upon to indemnify certain customers for costs related to products or services sold to such customers. Management believes none of these legal matters will have a material adverse effect on the Company’s business or financial condition upon final disposition.

In addition, the Company is subject to various federal, state, local and foreign laws and regulations governing the use, discharge, disposal and remediation of hazardous materials. Compliance with current laws and regulations has not had, and is not expected to have, a materially adverse effect on the Company’s financial condition or results of operations.

Asset Impairments

Goodwill is tested for impairment annually or at other times if events have occurred or circumstances exist that indicate the carrying value of the reporting unit may exceed its fair value. During the three months ended September 30, 2018, through the annual planning process, the Company determined that an indicator of impairment existed for certain reporting units as a result of reductions in expected sales and operating income. The Company performed a step one goodwill impairment test as of September 30, 2018, and all reporting units passed step one. The Company identified no goodwill impairments during the three or nine months ended September 30, 2018 or 2017.

Property, plant and equipment and intangible assets with finite lives are reviewed for impairment whenever events or changes in circumstances indicate that the carrying value of the assets may not be recoverable, based on the undiscounted cash flows expected to be derived from the use and ultimate disposition of the assets. Assets identified as impaired are carried at estimated fair value. Equity investments without readily determinable fair values are evaluated each reporting period for impairment based on a qualitative assessment and are then measured at fair value if an impairment is determined to exist. Other than certain assets impaired as a result of restructuring actions, there were no definite-lived intangible or other long-lived asset impairments identified during the three or nine months ended September 30, 2018 or 2017.

Income Taxes

On December 22, 2017, the United States (U.S.) government enacted tax reform legislation that reduced the corporate income tax rate from 35% to 21% and included a broad range of complex provisions affecting the taxation of businesses. Generally, financial statement recognition of the new legislation would be required to be completed in the period of enactment; however, in response to the complexities of this new legislation, the Securities and Exchange Commission (SEC) staff issued Staff Accounting Bulletin No. 118 to provide companies with transitional relief. Specifically, when the initial accounting for items under the new legislation is incomplete, the guidance allows the recognition of provisional amounts when reasonable estimates can be made or the continued application of the prior tax law if a reasonable estimate of the effect cannot be made. The SEC staff has provided up to one year from the date of enactment for companies to finalize the accounting for the effects of this new legislation. During the three and nine months ended September 30, 2018, the Company recognized a $2.5 million tax benefit related to changes made to the provisional amounts, primarily related to the Company’s transition tax and from revaluing the Company’s U.S. deferred tax assets and liabilities. The Company expects to continue to refine the calculations as additional analysis is completed and as additional guidance and interpretations are available. Any changes made could be material to income tax expense.

The effective income tax rate of 2.7% for the three months ended September 30, 2018 was lower than the statutory rate of 21.0% due to a reduction in tax expense of $24.1 million related to the expiration of statutes of limitations on various uncertain tax positions. The effective income tax rate of 23.9% for the nine months ended September 30, 2018 was higher than the statutory rate of 21.0% primarily due to the effect of the provision for state income taxes, the impact of earnings in foreign jurisdictions that are taxed at rates higher than the U.S. statutory rate, the impact of the new U.S. anti-deferral provisions and the impact of repatriation taxes. These increases to the effective tax rate were partially offset by a reduction in tax expense related to the expiration of statutes of limitations on various uncertain tax positions discussed above and the favorable impact of $4.7 million of excess tax benefits related to equity-based compensation awards for the nine months ended September 30, 2018.

The effective income tax rate of 24.8% and 23.6% for the three and nine months ended September 30, 2017, respectively, was lower than the statutory rate of 35.0% primarily due to a reduction in tax expense related to the expiration of statutes of limitations on various uncertain tax positions. In addition, the effective income tax rate was favorably impacted by $0.4 million and $13.5 million of excess tax benefits related to equity-based compensation awards for the three and nine months ended September 30, 2017, respectively. Offsetting these decreases for the three and nine months ended September 30, 2017 was the effect of the provision for state income taxes.

Earnings Per Share

Basic earnings per share is computed by dividing net income by the weighted average number of common shares outstanding during the period. Diluted earnings per share is based on net income divided by the weighted average number of common shares outstanding plus the effect of potentially dilutive common shares using the treasury stock method. Potentially dilutive common shares include outstanding equity-based awards (stock options, restricted stock units and performance share units). Certain outstanding equity-based awards were not included in the computation of diluted earnings per share because the effect was either antidilutive or the performance conditions were not met (2.5 million shares and 1.8 million shares for the three and nine months ended September 30, 2018, respectively, and 1.7 million shares and 1.3 million shares for the three and nine months ended September 30, 2017, respectively).

The following table presents the basis for the earnings per share computations (in thousands, except per share data):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2018		2017		2018		2017
Numerator:
Net income for basic and diluted earnings per share	$	63,843	$	51,157	$	163,500	$	140,183

Denominator:
Weighted average common shares outstanding - basic		192,219		191,824		191,920		192,973
Dilutive effect of equity-based awards		3,140		3,991		3,450		4,414
Weighted average common shares outstanding - diluted		195,359		195,815		195,370		197,387

Earnings per share:
Basic	$	0.33	$	0.27	$	0.85	$	0.73
Diluted	$	0.33	$	0.26	$	0.84	$	0.71

Recent Accounting Pronouncements

Adopted During the Nine Months Ended September 30, 2018

The Company adopted ASU No. 2014-09, Revenue from Contracts with Customers, including all subsequently issued clarifying guidance, on January 1, 2018. The core principle of the new guidance is to recognize revenue when promised goods or services are transferred to customers in an amount that reflects the consideration that is expected to be received for those goods or services. The Company adopted the standard using the modified retrospective approach with the cumulative effect of applying the standard on the date of adoption recognized in retained earnings (accumulated deficit).

Revenue recognition for the Company’s product sales remained generally consistent with historical practice. However, the adoption of ASU No. 2014-09 resulted in acceleration of revenue recognition for certain project contracts containing integrated product and service obligations, primarily within the CommScope Mobility Solutions (CMS) segment. These multi-element contracts represented less than 2.0% of total net sales for the three and nine months ended September 30, 2018 and 2017. For these contracts, certain performance obligations are recognized over time using cost-based input methods, which recognize revenue and cost of sales based on the relationship between actual costs incurred compared to the total estimated cost for the performance obligation. Based on contracts in effect at January 1, 2018, the Company recorded a cumulative effect adjustment, net of tax, of $3.4 million, which reduced the accumulated deficit on the Condensed Consolidated Balance Sheets. This adjustment reflects an acceleration of revenues of $8.0 million.

The impact of adoption of the new revenue recognition standard on the condensed consolidated financial statements was as follows:

	Three Months Ended September 30, 2018						Nine Months Ended September 30, 2018
	As Reported		Amounts Without Adoption of ASU No. 2014-09		Effect of Change Increase / (Decrease)		As Reported		Amounts Without Adoption of ASU No. 2014-09		Effect of Change Increase / (Decrease)
Net sales	$	1,150,405	$	1,148,956	$	1,449	$	3,510,778	$	3,511,013	$	(235	)
Cost of sales		726,531		726,314		217		2,204,194		2,203,498		696
Operating income		132,225		130,993		1,232		400,639		401,570		(931	)
Income tax expense		1,763		1,483		280		51,367		51,625		(258	)
Net income		63,843		62,891		952		163,500		164,173		(673	)

	As of September 30, 2018
	As Reported			Amounts Without Adoption of ASU No. 2014-09			Effect of Change Increase / (Decrease)
Assets:
Accounts receivable, less allowance for doubtful accounts	$	901,096		$	896,592		$	4,504
Inventories, net		490,767			494,647			(3,880	)
Liabilities:
Other accrued liabilities		323,211			325,328			(2,117	)
Equity:
Retained earnings (accumulated deficit)		(226,494	)		(229,235	)		2,741

The Company adopted ASU No. 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities, on January 1, 2018. This new guidance modifies how entities measure equity investments (except those accounted for under the equity method of accounting) and present changes in the fair value of financial liabilities; simplifies the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment; changes presentation and disclosure requirements; and clarifies that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available-for-sale securities in combination with the entity’s other deferred tax assets. Adoption of this new guidance did not have a material impact on the consolidated financial statements.

The Company adopted ASU No. 2016-16, Accounting for Income Taxes, Intra-Entity Asset Transfers of Assets Other than Inventory, on January 1, 2018. Under previous guidance, the tax effects of intra-entity asset transfers were deferred until the transferred asset was sold to a third party or otherwise recovered through use. The new guidance eliminates the exception for all intra-entity sales of assets other than inventory. As a result, the tax effect of an intra-entity asset sale would be recognized when the transfer occurs. The Company recorded a cumulative effect adjustment of $2.6 million as of January 1, 2018 that decreased the accumulated deficit on the Condensed Consolidated Balance Sheets as a result of this new guidance.

The Company adopted ASU No. 2017-07, Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, on January 1, 2018. The new standard requires an employer to report the service cost component of net periodic benefit cost in the same line item as other compensation costs arising from services rendered by the employee and requires the other components of net periodic benefit cost to be reported outside the subtotal of operating income. Of the total $1.3 million of net periodic benefit income for the three months ended September 30, 2018, $2.3 million of net periodic benefit income was recorded in other income (expense), net, and $1.0 million of net periodic benefit cost was recorded within operating income. Of the total $3.8 million of net periodic benefit income for the nine months ended September 30, 2018, $6.9 million of net periodic benefit income was recorded in other income (expense), net, and $3.2 million of net periodic benefit cost was recorded within operating income. The Company utilized the practical expedient and used the amounts disclosed in its employee benefit plans note for the three and nine months ended September 30, 2018 as the basis for applying the retrospective presentation requirements. The Company reclassified $1.4 million and $4.2 million of net periodic benefit income from operating income to other income (expense), net for the three and nine months ended September 30, 2017, respectively. The adoption of this guidance had no impact on the previously reported income before income taxes or net income for the three or nine months ended September 30, 2017.

The Company adopted ASU No. 2017-12, Targeted Improvements to Accounting for Hedging Activities, on January 1, 2018. The new guidance provides targeted improvements to the hedge accounting model intended to allow financial reporting to more closely reflect an entity’s risk management activities and to simplify the application of hedge accounting. Beginning January 1, 2018, the Company has elected to assess the effectiveness of its net investment hedges using the spot rate method. As a result, differences between the spot rate and the forward rate will be amortized on a straight-line basis to other income (expense), net over the life of the contract. See Note 6 for the details on the impact of this change to the financial statements.

Issued but Not Adopted

In August 2018, the Financial Accounting Standards Board (FASB) issued ASU No. 2018-15, Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement (CCA) that is a Service Contract, which aligns the accounting for costs incurred to implement a CCA that is a service arrangement with the guidance on capitalizing costs associated with developing or obtaining internal-use software. ASU No. 2018-15 is effective for the Company as of January 1, 2020 and early adoption is permitted. The Company is evaluating the impact of the new guidance on the consolidated financial statements and when it will be adopted.

In August 2018, the FASB issued ASU No. 2018-14, Disclosure Framework: Changes to the Disclosure Requirements for Defined Benefit Plans, which adds disclosure requirements identified as relevant for employers that sponsor defined benefit pension or other postretirement plans, removes disclosures that are no longer considered cost beneficial, and clarifies existing guidance for certain disclosure requirements. ASU No. 2018-14 is effective for the Company as of January 1, 2021 and early adoption is permitted. The Company does not expect the new guidance to have a significant impact on the consolidated financial statements.

In February 2018, the FASB issued ASU No. 2018-02, Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which allows companies to elect reclassification from accumulated other comprehensive income to retained earnings for certain tax effects resulting from the U.S. tax legislation enacted in 2017. ASU No. 2018-02 is effective for the Company as of January 1, 2019 and early adoption is permitted. The Company does not expect to elect the permitted reclassification and therefore does not expect the new guidance to have an impact on the consolidated financial statements.

In January 2017, the FASB issued ASU No. 2017-04, Simplifying the Test of Goodwill Impairment, which eliminates Step 2 from the goodwill impairment test. Under the new guidance, an entity will perform its annual or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity will recognize a goodwill impairment charge for the excess of the reporting unit’s carrying amount over its fair value, up to the amount of goodwill allocated to that reporting unit. ASU No. 2017-04 is effective for the Company as of January 1, 2020 and early adoption is permitted. The Company is evaluating the impact of the new guidance on the consolidated financial statements and when it will be adopted.

In June 2016, the FASB issued ASU No. 2016-13, Measurement of Credit Losses on Financial Instruments. The new guidance replaces the current incurred loss method used for determining credit losses on financial assets, including trade receivables, with an expected credit loss method. ASU No. 2016-13 is effective for the Company as of January 1, 2020 and early adoption is permitted. The Company is evaluating the impact of the new guidance on the consolidated financial statements and when it will be adopted.

In February 2016, the FASB issued ASU No. 2016-02, Leases, which supersedes the current leasing guidance in Topic 840, Leases. Under the new guidance, lessees are required to recognize assets and lease liabilities for the rights and obligations created by leased assets previously classified as operating leases. ASU No. 2016-02 is effective for the Company as of January 1, 2019. In July 2018, the FASB issued ASU No. 2018-11, which allows entities a transition election to change the date of initial application of the standard to the beginning of the year of adoption and to recognize the effects of applying Topic 842 as a cumulative-effect adjustment to retained earnings (accumulated deficit) as opposed to restating comparative periods for the effects of applying the new standard. The Company expects to elect this transition approach. The Company is in the process of implementing the necessary changes to its accounting policies, processes, internal controls and information systems that will be required to meet the new standard’s reporting and disclosure requirements. The Company continues to assess the impact of adoption on the consolidated financial statements but expects the only significant impact of the ASU to be the recognition of right-of-use assets and lease liabilities for operating leases.

Acquisitions

9 Months Ended

Sep. 30, 2018

Business Combinations [Abstract]

Acquisitions

2. ACQUISITIONS

On August 1, 2017, the Company acquired Cable Exchange in an all cash transaction. The Company paid $108.7 million ($105.2 million net of cash acquired) and recorded a $14.5 million liability for the remaining payments due. Cable Exchange is a quick-turn supplier of fiber optic and copper assemblies for data, voice and video communications. Net sales of Cable Exchange products are reflected in the CCS segment for the three and nine months ended September 30, 2018 and 2017 and were not material.

The allocation of the purchase price, based on estimates of the fair values of the assets acquired and liabilities assumed, is as follows (in millions):

	Estimated Fair Value
Cash and cash equivalents	$	3.5
Accounts receivable		6.4
Inventory		4.4
Property, plant and equipment		0.9
Goodwill		49.6
Identifiable intangible assets		61.1
Less: Liabilities assumed		(2.7	)
Net acquisition cost	$	123.2

The goodwill arising from the purchase price allocation of the Cable Exchange acquisition is believed to result from the Company’s reputation in the marketplace and assembled workforce and is expected to be deductible for income tax purposes.

Goodwill

9 Months Ended

Sep. 30, 2018

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill

3. GOODWILL

The following table presents goodwill by reportable segment (in millions):

	CCS			CMS			Total
Goodwill, gross at December 31, 2017	$	2,193.2		$	904.4		$	3,097.6
Foreign exchange		(26.0	)		(2.0	)		(28.0	)
Goodwill, gross at September 30, 2018		2,167.2			902.4			3,069.6
Accumulated impairment charges at December 31, 2017 and September 30, 2018		(51.5	)		(159.5	)		(211.0	)
Goodwill, net at September 30, 2018	$	2,115.7		$	742.9		$	2,858.6

Supplemental Financial Statement Information

9 Months Ended

Sep. 30, 2018

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Supplemental Financial Statement Information

4. SUPPLEMENTAL FINANCIAL STATEMENT INFORMATION

Disaggregated Net Sales

The following table presents net sales by reportable segment, disaggregated based on contract type (in millions):

	Three Months Ended						Nine Months Ended
	September 30, 2018						September 30, 2018
	CCS		CMS		Total		CCS		CMS		Total
Contract type:
Product contracts	$	728.6	$	395.6	$	1,124.2	$	2,138.6	$	1,295.4	$	3,434.0
Project contracts		0.3		13.1		13.4		0.4		37.1		37.5
Other contracts		2.8		10.0		12.8		6.8		32.5		39.3
Consolidated net sales	$	731.7	$	418.7	$	1,150.4	$	2,145.8	$	1,365.0	$	3,510.8

Further information on net sales by reportable segment and geographic region is included in Note 8.

Allowance for Doubtful Accounts

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2018			2017			2018			2017
Allowance for doubtful accounts, beginning of period	$	19,123		$	18,838		$	13,976		$	17,211
Charged to costs and expenses		39			283			6,563			1,336
Account write-offs and other		(1,021	)		(61	)		(2,398	)		513
Allowance for doubtful accounts, end of period	$	18,141		$	19,060		$	18,141		$	19,060

Customer Contract Balances

The following table provides the balance sheet location and amounts of contract assets and liabilities from contracts with customers as of September 30, 2018 and December 31, 2017.

Balance Sheet Location

September 30,

2018

December 31,

2017

Unbilled accounts receivable

Accounts receivable, less allowance for doubtful accounts

6,372

—

Deferred revenue

Other accrued liabilities

8,417

12,611

There were no material changes to contract asset balances for the three or nine months ended September 30, 2018 as a result of changes in estimates or impairments. The full amount of the deferred revenue balance as of September 30, 2018 was classified as a current liability as the Company expects to recognize these amounts over the next twelve months.

Inventories

	September 30, 2018		December 31, 2017
Raw materials	$	164,242	$	126,558
Work in process		104,168		98,526
Finished goods		222,357		219,857
	$	490,767	$	444,941

Other Accrued Liabilities

	September 30, 2018		December 31, 2017
Compensation and employee benefit liabilities	$	100,938	$	97,522
Accrued interest		48,727		23,485
Deferred revenue		8,417		12,611
Product warranty accrual		14,471		16,928
Restructuring reserve		14,195		24,961
Income taxes payable		14,835		16,949
Purchase price payable		10,631		2,098
Value-added taxes payable		15,378		11,838
Accrued professional fees		10,992		10,224
Other		84,627		70,364
	$	323,211	$	286,980

Accumulated Other Comprehensive Loss

The following table presents changes in accumulated other comprehensive income (AOCI), net of tax, and accumulated other comprehensive loss (AOCL), net of tax:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2018			2017			2018			2017
Foreign currency translation
Balance at beginning of period	$	(114,529	)	$	(127,048	)	$	(52,770	)	$	(254,148	)
Other comprehensive income (loss)		(22,470	)		47,087			(84,229	)		173,920
Amounts reclassified from AOCL		7			—			7			267
Balance at end of period	$	(136,992	)	$	(79,961	)	$	(136,992	)	$	(79,961	)

Net investment hedge
Balance at beginning of period	$	(2,528	)	$	(3,351	)	$	(4,981	)	$	—
Other comprehensive income (loss)		192			(1,471	)		2,645			(4,822	)
Balance at end of period	$	(2,336	)	$	(4,822	)	$	(2,336	)	$	(4,822	)

Defined benefit plan activity
Balance at beginning of period	$	(31,575	)	$	(34,202	)	$	(28,852	)	$	(33,473	)
Amounts reclassified from AOCL		(1,079	)		(353	)		(3,802	)		(1,082	)
Balance at end of period	$	(32,654	)	$	(34,555	)	$	(32,654	)	$	(34,555	)

Available-for-sale securities
Balance at beginning of period	$	—		$	1,685		$	—		$	2,508
Other comprehensive income (loss)		—			(154	)		—			3,159
Amounts reclassified from AOCI		—			(1,531	)		—			(5,667	)
Balance at end of period	$	—		$	—		$	—		$	—
Net AOCL at end of period	$	(171,982	)	$	(119,338	)	$	(171,982	)	$	(119,338	)

Amounts reclassified from net AOCL related to foreign currency translation, available-for-sale securities and defined benefit plans are recorded in other income (expense), net in the Condensed Consolidated Statements of Operations and Comprehensive Income.

Cash Flow Information

	Nine Months Ended September 30,
	2018		2017
Cash paid during the period for:
Income taxes, net of refunds	$	94,693	$	102,952
Interest		146,413		133,797

Financing

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Financing

5. FINANCING

	September 30, 2018			December 31, 2017
5.00% senior notes due March 2027	$	750,000		$	750,000
6.00% senior notes due June 2025		1,500,000			1,500,000
5.50% senior notes due June 2024		650,000			650,000
5.00% senior notes due June 2021		650,000			650,000
Senior secured term loan due December 2022		486,250			886,250
Senior secured revolving credit facility expires May 2020		—			—
Total principal amount of debt	$	4,036,250		$	4,436,250
Less: Original issue discount, net of amortization		(1,611	)		(3,389	)
Less: Debt issuance costs, net of amortization		(50,849	)		(63,460	)
Total long-term debt	$	3,983,790		$	4,369,401

See Note 6 in the Notes to Consolidated Financial Statements in the 2017 Annual Report for additional information on the terms and conditions of the Company’s debt obligations.

Senior Secured Credit Facilities

In July 2018, the Company repaid $400.0 million of its senior secured term loan due 2022 (the 2022 Term Loan). The payment was made using $250.0 million of cash on hand and $150.0 million borrowed under the Company’s asset-based revolving credit facility (the revolving credit facility). In connection with this voluntary repayment, $7.4 million of original issue discount and debt issuance costs were written off and included in interest expense.

In August 2018, the Company repaid $100.0 million of the $150.0 million borrowed under the revolving credit facility and in September 2018, the Company repaid the remaining $50.0 million borrowed under the revolving credit facility. As of September 30, 2018, the Company had availability of $521.6 million under the revolving credit facility, after giving effect to borrowing base limitations and outstanding letters of credit.

No portion of the 2022 Term Loan was reflected as a current portion of long-term debt as of September 30, 2018 related to the potentially required excess cash flow payment because the amount that may be payable in 2019, if any, cannot currently be reliably estimated. There was no excess cash flow payment required in 2018 related to 2017.

Other Matters

The Company’s non-guarantor subsidiaries held $2,411 million, or 36%, of total assets and $486 million, or 10%, of total liabilities as of September 30, 2018 and accounted for $453 million, or 39%, and $1,388 million, or 40%, of net sales for the three and nine months ended September 30, 2018, respectively. As of December 31, 2017, the non-guarantor subsidiaries held $2,587 million, or 37%, of total assets and $569 million, or 11%, of total liabilities. For the three and nine months ended September 30, 2017, the non-guarantor subsidiaries accounted for $494 million, or 44%, and $1,405 million, or 41%, of net sales, respectively. All amounts presented exclude intercompany balances.

The weighted average effective interest rate on outstanding borrowings, including the amortization of debt issuance costs and original issue discount, was 5.70% and 5.45% at September 30, 2018 and December 31, 2017, respectively.

Derivatives and Hedging Activities

9 Months Ended

Sep. 30, 2018

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Derivatives and Hedging Activities

6. DERIVATIVES AND HEDGING ACTIVITIES

Derivatives Not Designated As Hedging Instruments

The Company uses forward contracts to hedge a portion of its balance sheet foreign exchange re-measurement risk and to hedge certain planned foreign currency expenditures. As of September 30, 2018, the Company had foreign exchange contracts outstanding with maturities of up to twelve months and aggregate notional values of $331 million (based on exchange rates as of September 30, 2018). Unrealized gains and losses resulting from these contracts are recognized in other income (expense), net and partially offset corresponding foreign exchange gains and losses on the balances and expenditures being hedged. These instruments are not held for speculative or trading purposes, are not designated as hedges for hedge accounting purposes and are marked to market each period through earnings.

The following table presents the balance sheet location and fair value of the Company’s derivatives not designated as hedging instruments:

		Fair Value of Asset (Liability)
	Balance Sheet Location	September 30, 2018			December 31, 2017
Foreign currency contracts	Prepaid expenses and other current assets	$	1,542		$	9,050
Foreign currency contracts	Other accrued liabilities		(6,574	)		(574	)
Total derivatives not designated as hedging instruments		$	(5,032	)	$	8,476

The pretax impact of these foreign currency forward contracts, both matured and outstanding, on the Condensed Consolidated Statements of Operations and Comprehensive Income is as follows:

Foreign Currency Forward Contracts	Location of Gain (Loss)	Gain (Loss) Recognized
Three Months Ended September 30, 2018	Other income (expense), net	$	(4,902	)
Three Months Ended September 30, 2017	Other income (expense), net	$	8,458
Nine Months Ended September 30, 2018	Other income (expense), net	$	(12,463	)
Nine Months Ended September 30, 2017	Other income (expense), net	$	22,866

Derivative Instruments Designated As Net Investment Hedge

The Company has a hedging strategy to designate certain foreign exchange contracts as net investment hedges to mitigate a portion of the foreign currency risk on the euro net investment in a foreign subsidiary. As of September 30, 2018, the Company held designated forward contracts with outstanding maturities of up to fifteen months and an aggregate notional value of $55 million.

In the first quarter of 2018, the Company changed the method used to assess the effectiveness of its net investment hedges from the forward rate method to the spot rate method. The Company believes the spot rate method better aligns with the underlying foreign currency exposure of the hedged net investment. Effective January 1, 2018, the spot-forward differences of the designated forward contracts are excluded from hedge effectiveness at inception and are recognized on a straight-line basis to other income (expense), net over the life of each contract. The amortization of the spot-forward differences was not material for the three or nine months ended September 30, 2018.

Hedge effectiveness is assessed each quarter based on the net investment in the foreign subsidiary designated as the hedged item and the changes in the fair value of designated forward contracts based on spot rates. For hedges that meet the effectiveness requirements, changes in fair value are recorded as a component of other comprehensive income (loss), net of tax. As of September 30, 2018, there was no ineffectiveness on the instruments designated as net investment hedges.

The following table presents the balance sheet location and fair value of the derivative instruments designated as net investment hedges:

		Fair Value of Asset (Liability)
	Balance Sheet Location	September 30, 2018		December 31, 2017
Foreign currency contracts	Prepaid expenses and other current assets	$	2,197	$	—
Foreign currency contracts	Other noncurrent assets		67		—
Foreign currency contracts	Other accrued liabilities		—		(403	)
Total derivatives designated as net investment hedging instruments		$	2,264	$	(403	)

The after-tax impact of the forward contracts designated as net investment hedging instruments, both matured and outstanding, on the Condensed Consolidated Statements of Operations and Comprehensive Income is as follows:

Foreign Currency Forward Contracts	Location of Gain (Loss)	Effective Portion of Gain (Loss) Recognized
Three Months Ended September 30, 2018	Other comprehensive income (loss), net of tax	$	192
Three Months Ended September 30, 2017	Other comprehensive income (loss), net of tax	$	(1,471	)
Nine Months Ended September 30, 2018	Other comprehensive income (loss), net of tax	$	2,645
Nine Months Ended September 30, 2017	Other comprehensive income (loss), net of tax	$	(4,822	)

Fair Value Measurements

9 Months Ended

Sep. 30, 2018

Fair Value Disclosures [Abstract]

Fair Value Measurements

7. FAIR VALUE MEASUREMENTS

The Company’s financial instruments consist primarily of cash and cash equivalents, trade receivables, trade payables, debt instruments and foreign currency contracts. For cash and cash equivalents, trade receivables and trade payables, the carrying amounts of these financial instruments as of September 30, 2018 and December 31, 2017 were considered representative of their fair values due to their short terms to maturity. The fair values of the Company’s debt instruments and foreign currency contracts were based on indicative quotes.

Fair value measurements using quoted prices in active markets for identical assets and liabilities fall within Level 1 of the fair value hierarchy, measurements using significant other observable inputs fall within Level 2, and measurements using significant unobservable inputs fall within Level 3.

The carrying amounts, estimated fair values and valuation input levels of the Company’s foreign currency contracts and debt instruments as of September 30, 2018 and December 31, 2017, are as follows:

	September 30, 2018				December 31, 2017
	Carrying Amount		Fair Value		Carrying Amount		Fair Value		Valuation Inputs
Assets:
Foreign currency contracts	$	3,806	$	3,806	$	9,050	$	9,050	Level 2
Liabilities:
5.00% senior notes due 2027		750,000		725,250		750,000		753,750	Level 2
6.00% senior notes due 2025		1,500,000		1,545,000		1,500,000		1,591,800	Level 2
5.50% senior notes due 2024		650,000		655,720		650,000		676,780	Level 2
5.00% senior notes due 2021		650,000		652,405		650,000		661,375	Level 2
Senior secured term loan due 2022, at par		486,250		490,796		886,250		892,343	Level 2
Foreign currency contracts		6,574		6,574		977		977	Level 2

These fair value estimates are based on pertinent information available to management as of the valuation date. Although management is not aware of any factors that would significantly affect these fair value estimates, such amounts have not been comprehensively revalued for purposes of these financial statements since those dates, and current estimates of fair value may differ significantly from the amounts presented.

Segments and Geographic Information

9 Months Ended

Sep. 30, 2018

Segment Reporting [Abstract]

Segments and Geographic Information

8. SEGMENTS AND GEOGRAPHIC INFORMATION

The CommScope Connectivity Solutions (CCS) segment provides innovative fiber optic and copper cable and connectivity solutions for use in data centers and business enterprise, telecommunications, cable television and residential broadband networks. The CCS portfolio includes solutions for indoor and outdoor network applications. Indoor network solutions are found in commercial buildings and in the network core, which includes data centers, central offices and cable television headends. These solutions include optical fiber and twisted pair structured cabling solutions, intelligent infrastructure management hardware and software, high-density fiber optic connectivity, fiber management systems, patch cords and panels, pre-terminated fiber connectivity, complete cabling systems and cable assemblies for use in offices and data centers. Outdoor network solutions are found in both local-area and wide-area networks and “last-mile” fiber-to-the-home installations, including deployments of fiber-to-the-node (FTTN), fiber-to-the-premises (FTTP) and fiber-to-the-distribution point (FTTdP) to homes, businesses and cell sites. These solutions support the multichannel video, voice and high-speed data services provided by telecommunications operators and multi-system operators. The Company’s fiber optic connectivity solutions are primarily comprised of hardened connector systems, fiber distribution hubs and management systems, couplers and splitters, plug and play multiport service terminals, hardened optical terminating enclosures, high density cable assemblies, splices and splice closures.

The CommScope Mobility Solutions (CMS) segment provides the integral building blocks for cellular base station sites and related connectivity; indoor, small cell and distributed antenna wireless systems; and wireless network backhaul planning and optimization products and services. These solutions enable wireless operators to increase spectral efficiency and enhance cellular coverage and capacity in challenging network conditions such as commercial buildings, urban areas, stadiums and transportation systems. The CMS segment focuses on all aspects of the radio access network (RAN) from the macro through the metro, to the indoor layer. Macro cell solutions can be found at wireless tower sites and on rooftops and include base station antennas, microwave antennas, hybrid fiber-feeder and power cables, coaxial cables, connectors and filters. Metro cell solutions can be found on street poles and on other urban, outdoor structures and include radio frequency (RF) delivery and connectivity solutions, equipment housing and concealment. These fully integrated outdoor systems are comprised of specialized antennas, filters/combiners, backhaul solutions, intra-system cabling and power distribution, all minimized to fit an urban environment. Distributed antenna systems and small cell indoor solutions allow wireless operators to increase spectral efficiency and thereby extend and enhance cellular coverage and capacity in challenging network conditions.

The following table provides summary financial information by reportable segment (in millions):

	September 30, 2018		December 31, 2017
Identifiable segment-related assets:
CCS	$	4,394.8	$	4,546.0
CMS		1,926.1		1,995.8
Total identifiable segment-related assets		6,320.9		6,541.8
Reconciliation to total assets:
Cash and cash equivalents		352.4		454.0
Deferred income tax assets		45.0		45.9
Total assets	$	6,718.3	$	7,041.7

The following table provides net sales, adjusted operating income, depreciation expense and additions to property, plant and equipment by reportable segment (in millions):

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2018			2017			2018			2017
Net sales:
CCS	$	731.7		$	708.7		$	2,145.8		$	2,116.0
CMS		418.7			420.1			1,365.0			1,324.2
Consolidated net sales	$	1,150.4		$	1,128.8		$	3,510.8		$	3,440.2

Segment adjusted operating income:
CCS	$	147.4		$	138.5		$	399.0		$	398.7
CMS		71.6			83.6			259.8			280.3
Total segment adjusted operating income		219.0			222.1			658.8			679.0
Amortization of intangible assets		(65.8	)		(68.3	)		(199.5	)		(202.9	)
Restructuring costs, net		(7.1	)		(5.4	)		(19.7	)		(24.5	)
Equity-based compensation		(11.3	)		(11.0	)		(33.7	)		(31.6	)
Integration and transaction costs		(2.6	)		(12.0	)		(5.3	)		(38.2	)
Consolidated operating income	$	132.2		$	125.4		$	400.6		$	381.8

Depreciation expense:
CCS	$	13.3		$	14.6		$	41.6		$	43.5
CMS		5.4			6.0			16.6			17.3
Consolidated depreciation expense	$	18.7		$	20.6		$	58.2		$	60.8

Additions to property, plant and equipment:
CCS	$	18.1		$	12.9		$	39.6		$	33.4
CMS		6.4			7.7			15.8			17.8
Consolidated additions to property, plant and equipment	$	24.5		$	20.6		$	55.4		$	51.2

Sales to customers located outside of the U.S. comprised 43.2% and 43.7% of total net sales for the three and nine months ended September 30, 2018, respectively, compared to 47.3% and 45.1% of total net sales for the three and nine months ended September 30, 2017, respectively. Sales by geographic region, based on the destination of product shipments, were as follows (in millions):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2018		2017		2018		2017
United States	$	653.0	$	595.3	$	1,975.1	$	1,887.5
Europe, Middle East and Africa		235.6		231.0		738.7		698.6
Asia Pacific		179.3		218.6		551.1		604.3
Caribbean and Latin America		59.4		62.2		177.1		177.1
Canada		23.1		21.7		68.8		72.7
Consolidated net sales	$	1,150.4	$	1,128.8	$	3,510.8	$	3,440.2

Restructuring Costs

9 Months Ended

Sep. 30, 2018

Restructuring And Related Activities [Abstract]

Restructuring Costs

9. RESTRUCTURING COSTS

The Company incurs costs associated with restructuring initiatives intended to improve overall operating performance and profitability. The costs related to restructuring actions are generally composed of employee-related costs, lease termination costs and fixed asset related costs. Employee-related costs include the expected severance costs and related benefits as well as one-time severance benefits that are accrued over the remaining period employees are required to work in order to receive such benefits. Lease termination costs include the discounted cost of unused leased facilities, net of anticipated sub-rental income. Fixed asset related costs include non-cash impairments or fixed asset disposals associated with restructuring actions in addition to the cash costs to uninstall, pack, ship and reinstall manufacturing equipment and the costs to prepare the receiving facility to accommodate relocated equipment. Fixed asset related costs are expensed as incurred. Cash paid is net of proceeds received from the sale of related assets.

As a result of restructuring and consolidation actions, the Company owns unutilized real estate at various facilities both inside and outside the U.S. The Company is attempting to sell or lease this unutilized space. Additional impairment charges may be incurred related to these or other excess assets.

The Company’s net pretax restructuring charges, by segment, were as follows:

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2018			2017			2018		2017
CCS	$	(409	)	$	5,569		$	6,648	$	19,922
CMS		7,479			(209	)		13,090		4,599
Total	$	7,070		$	5,360		$	19,738	$	24,521

Restructuring reserves were included in the Company’s Condensed Consolidated Balance Sheets as follows:

	September 30, 2018		December 31, 2017
Other accrued liabilities	$	14,195	$	24,961
Other noncurrent liabilities		6,153		7,036
Total liability	$	20,348	$	31,997

Cost Alignment Restructuring Actions

Prior to the acquisition of TE Connectivity’s Broadband Network Solutions (BNS) business in August 2015, the Company initiated restructuring actions to realign and lower its cost structure, primarily through workforce reductions and other cost reduction initiatives, including the cessation of manufacturing operations at various facilities. As of September 30, 2018, these actions were substantially complete except for a $5.9 million liability for lease termination costs, for which the Company expects to make cash payments, net of sublease income, of $0.3 million during the remainder of 2018 and make the remaining payments of $5.6 million between 2019 and 2022.

BNS Integration Restructuring Actions

Following the acquisition of BNS, the Company initiated a series of restructuring actions, which are currently ongoing, to integrate and streamline operations and achieve cost synergies. The activity within the liability established for the BNS integration restructuring actions for the three and nine months ended September 30, 2018 was as follows:

	Employee- Related Costs			Lease Termination Costs			Fixed Asset Related Costs			Total
Balance at June 30, 2018	$	14,555		$	652		$	—		$	15,207
Additional charge recorded		6,120			656			(1,733	)		5,043
Cash paid		(6,710	)		(830	)		(159	)		(7,699	)
Consideration received		—			—			6,609			6,609
Foreign exchange and other non-cash items		(40	)		(4	)		(4,717	)		(4,761	)
Balance at September 30, 2018	$	13,925		$	474		$	—		$	14,399

Balance at December 31, 2017	$	25,588		$	1,080		$	—		$	26,668
Additional charge recorded		17,149			1,465			(1,026	)		17,588
Cash paid		(28,531	)		(2,053	)		(553	)		(31,137	)
Consideration received		—			—			11,123			11,123
Foreign exchange and other non-cash items		(281	)		(18	)		(9,544	)		(9,843	)
Balance at September 30, 2018	$	13,925		$	474		$	—		$	14,399

The BNS integration actions include the announced closures or reduction in activities at various U.S. and international facilities as well as headcount reductions in sales, marketing and administrative functions. The Company has recognized restructuring charges of $127.2 million since the BNS acquisition for integration actions. No significant additional restructuring charges are expected to be incurred to complete the previously announced BNS integration initiatives. The Company expects to make cash payments of $7.9 million during the remainder of 2018 and additional cash payments of $6.5 million between 2019 and 2021. Future restructuring actions may be identified and the resulting charges and cash requirements may be material.

Employee Benefit Plans

9 Months Ended

Sep. 30, 2018

Compensation And Retirement Disclosure [Abstract]

Employee Benefit Plans

10. EMPLOYEE BENEFIT PLANS

Pension Plans

	Three Months Ended
	September 30,
	U.S. Plans						Non-U.S. Plans
	2018			2017			2018			2017
Service cost	$	—		$	—		$	967		$	1,262
Interest cost		1,323			1,490			1,257			1,355
Recognized actuarial loss		120			164			307			387
Amortization of prior service cost		—			—			10			—
Expected return on plan assets		(1,597	)		(1,687	)		(1,883	)		(1,946	)
Net periodic benefit cost (income)	$	(154	)	$	(33	)	$	658		$	1,058

	Nine Months Ended
	September 30,
	U.S. Plans						Non-U.S. Plans
	2018			2017			2018			2017
Service cost	$	—		$	—		$	3,154		$	3,623
Interest cost		3,969			4,470			3,926			3,938
Recognized actuarial loss		360			492			942			1,132
Amortization of prior service cost		—			—			31			—
Expected return on plan assets		(4,791	)		(5,061	)		(5,841	)		(5,642	)
Net periodic benefit cost (income)	$	(462	)	$	(99	)	$	2,212		$	3,051

Service cost is primarily included in cost of sales and selling, general and administrative expenses while the other components of net periodic benefit cost (income) are included in other income (expense), net.

The Company contributed $2.9 million and $8.7 million to its defined benefit pension plans during the three and nine months ended September 30, 2018, respectively. During the remainder of 2018, the Company anticipates making additional contributions of approximately $0.4 million to these plans.

The Company intends to terminate a significant U.S. defined benefit pension plan in the fourth quarter of 2018 through the purchase of annuities. The Company contributed $3.0 million to the plan during the nine months ended September 30, 2018, which was needed to substantially fund the termination of the plan. Upon termination, the Company expects to recognize a pretax charge in other income (expense), net, primarily related to unrecognized net actuarial losses currently recorded in accumulated other comprehensive loss of $33 million to $35 million.

Other Postretirement Benefit Plans

The Company has amended certain of its U.S. postretirement medical plans to terminate benefits as of December 31, 2018. The Company expects to recognize a pretax gain in other income (expense), net, in the fourth quarter of 2018 related to unrecognized prior service credits and unrecognized net actuarial gains currently recorded in accumulated other comprehensive loss of $9 million to $10 million.

Stockholders' Equity

9 Months Ended

Sep. 30, 2018

Equity [Abstract]

Stockholders' Equity

11. STOCKHOLDERS’ EQUITY

Stock Repurchase Program

On August 3, 2017, the Company announced its Board of Directors had authorized the repurchase of up to $100.0 million of the Company’s outstanding common stock. The Company repurchased $75.0 million of its common stock under this authorization in 2017, but no shares were repurchased under this plan during the three or nine months ended September 30, 2018. The program expired on July 31, 2018.

Equity-Based Compensation Plans

As of September 30, 2018, $66.7 million of unrecognized compensation costs related to unvested stock options, restricted stock units (RSUs) and performance share units (PSUs) are expected to be recognized over a remaining weighted average period of 1.4 years. There were no significant capitalized equity-based compensation costs at September 30, 2018.

The following table shows the location of equity-based compensation expense on the statement of operations:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2018		2017		2018		2017
Selling, general and administrative	$	8,629	$	8,365	$	25,691	$	24,041
Cost of sales		1,433		1,386		4,267		4,001
Research and development		1,265		1,223		3,765		3,530
Total equity-based compensation expense	$	11,327	$	10,974	$	33,723	$	31,572

Stock Options

Stock options are awards that allow the recipient to purchase shares of the Company’s common stock at a fixed price. Stock options are granted at an exercise price equal to the Company’s stock price at the date of grant. These awards generally vest over three years following the grant date and have a contractual term of ten years.

The following table summarizes the stock option activity (in thousands, except per share data and years):

	Shares			Weighted Average Option Exercise Price Per Share		Weighted Average Remaining Contractual Term in Years		Aggregate Intrinsic Value
Options outstanding at June 30, 2018		4,784		$	15.30
Granted		5		$	31.36
Exercised		(1	)	$	27.80
Forfeited		—		$	—
Options outstanding at September 30, 2018		4,788		$	15.31		4.0	$	80,633

Options outstanding at December 31, 2017		4,830		$	13.01
Granted		482		$	38.34
Exercised		(435	)	$	11.47
Forfeited		(89	)	$	34.09
Options outstanding at September 30, 2018		4,788		$	15.31		4.0	$	80,633
Options vested at September 30, 2018		3,955		$	10.79		3.0	$	80,151
Options unvested at September 30, 2018		833		$	36.76		8.8	$	482

The exercise prices of outstanding options at September 30, 2018 were in the following ranges (in thousands, except per share data and years):

	Options Outstanding						Options Exercisable
Range of Exercise Prices	Shares		Weighted Average Remaining Contractual Life in Years		Weighted Average Exercise Price Per Share		Shares		Weighted Average Exercise Price Per Share
$2.96 to $5.74		2,502		2.1	$	5.42		2,502	$	5.42
$5.75 to $22.99		653		1.6	$	8.58		653	$	8.58
$23.00 to $42.32		1,633		7.9	$	33.16		800	$	29.41
$2.96 to $42.32		4,788		4.0	$	15.31		3,955	$	10.79

The Company uses the Black-Scholes model to estimate the fair value of stock option awards at the date of grant. Key inputs and assumptions used in the model include the grant date fair value of common stock, exercise price of the award, the expected option term, the risk-free interest rate, stock price volatility and the Company’s projected dividend yield. The expected term represents the period over which the Company’s employees are expected to hold their options. The risk-free interest rate reflects the yield on zero-coupon U.S. treasury securities with a term equal to the option’s expected term. Expected volatility is derived based on the historical volatility of the Company’s stock. The Company’s projected dividend yield is zero. The Company believes the valuation technique and the approach utilized to develop the underlying assumptions are appropriate in estimating the fair values of its stock options. Estimates of fair value are not intended to predict actual future events or the value ultimately realized by employees who receive equity awards. Subsequent events are not indicative of the reasonableness of the original estimates of fair value made by the Company.

The following table presents the weighted average assumptions used to estimate the fair value of stock option awards granted during the three and nine months ended September 30, 2018 and 2017.

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2018			2017	2018			2017
Expected option term (in years)		6.0		*		6.0			6.0
Risk-free interest rate		2.8	%	*		2.7	%		2.0	%
Expected volatility		35.0	%	*		35.0	%		40.0	%
Weighted average exercise price	$	31.36		*	$	38.34		$	38.00
Weighted average fair value at grant date	$	12.18		*	$	14.83		$	15.72

*No stock options were granted during the three months ended September 30, 2017.

Restricted Stock Units

RSUs entitle the holder to shares of common stock after a vesting period that generally ranges from one to three years. The fair value of the awards is determined on the grant date based on the Company’s stock price.

The following table summarizes the RSU activity (in thousands, except per share data):

	Restricted Stock Units			Weighted Average Grant Date Fair Value Per Share
Non-vested RSUs at June 30, 2018		2,155		$	35.43
Granted		2		$	31.36
Vested and shares issued		(8	)	$	34.31
Forfeited		(61	)	$	35.47
Non-vested RSUs at September 30, 2018		2,088		$	35.43

Non-vested RSUs at December 31, 2017		2,279		$	31.83
Granted		1,122		$	37.97
Vested and shares issued		(1,081	)	$	30.80
Forfeited		(232	)	$	33.88
Non-vested RSUs at September 30, 2018		2,088		$	35.43

Performance Share Units

PSUs are stock awards in which the number of shares ultimately received by the employee depends on Company performance against specified targets. Such awards typically vest over three years and the number of shares issued can vary from 0% to 200% of the number of PSUs granted, depending on performance. The fair value of each PSU is determined on the date of grant based on the Company’s stock price. The ultimate number of shares issued and the related compensation cost recognized is based on the final performance metrics compared to the targets specified in the grants.

The following table summarizes the PSU activity (in thousands, except per share data):

	Performance Share Units			Weighted Average Grant Date Fair Value Per Share
Non-vested PSUs at June 30, 2018		294		$	34.07
Granted		2		$	31.36
Vested and shares issued		—		$	—
Forfeited		—		$	—
Non-vested PSUs at September 30, 2018		296		$	34.05

Non-vested PSUs at December 31, 2017		344		$	26.75
Granted		186		$	38.34
Vested and shares issued		(203	)	$	26.80
Forfeited		(31	)	$	26.27
Non-vested PSUs at September 30, 2018		296		$	34.05

Background and Basis of Presentation (Policies)

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Basis of Presentation

Revenue Recognition

Concentrations of Risk and Related Party Transactions

Product Warranties

The following table summarizes the activity in the product warranty accrual, included in other accrued liabilities:

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2018			2017			2018			2017
Product warranty accrual, beginning of period	$	14,846		$	20,283		$	16,928		$	21,631
Provision for warranty claims		1,296			284			3,174			4,515
Warranty claims paid		(1,660	)		(2,033	)		(5,573	)		(7,751	)
Foreign exchange		(11	)		(62	)		(58	)		77
Product warranty accrual, end of period	$	14,471		$	18,472		$	14,471		$	18,472

Commitments and Contingencies

Asset Impairments

Income Taxes

Earnings Per Share

The following table presents the basis for the earnings per share computations (in thousands, except per share data):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2018		2017		2018		2017
Numerator:
Net income for basic and diluted earnings per share	$	63,843	$	51,157	$	163,500	$	140,183

Denominator:
Weighted average common shares outstanding - basic		192,219		191,824		191,920		192,973
Dilutive effect of equity-based awards		3,140		3,991		3,450		4,414
Weighted average common shares outstanding - diluted		195,359		195,815		195,370		197,387

Earnings per share:
Basic	$	0.33	$	0.27	$	0.85	$	0.73
Diluted	$	0.33	$	0.26	$	0.84	$	0.71

Recent Accounting Pronouncements

Adopted During the Nine Months Ended September 30, 2018

The impact of adoption of the new revenue recognition standard on the condensed consolidated financial statements was as follows:

	Three Months Ended September 30, 2018						Nine Months Ended September 30, 2018
	As Reported		Amounts Without Adoption of ASU No. 2014-09		Effect of Change Increase / (Decrease)		As Reported		Amounts Without Adoption of ASU No. 2014-09		Effect of Change Increase / (Decrease)
Net sales	$	1,150,405	$	1,148,956	$	1,449	$	3,510,778	$	3,511,013	$	(235	)
Cost of sales		726,531		726,314		217		2,204,194		2,203,498		696
Operating income		132,225		130,993		1,232		400,639		401,570		(931	)
Income tax expense		1,763		1,483		280		51,367		51,625		(258	)
Net income		63,843		62,891		952		163,500		164,173		(673	)

	As of September 30, 2018
	As Reported			Amounts Without Adoption of ASU No. 2014-09			Effect of Change Increase / (Decrease)
Assets:
Accounts receivable, less allowance for doubtful accounts	$	901,096		$	896,592		$	4,504
Inventories, net		490,767			494,647			(3,880	)
Liabilities:
Other accrued liabilities		323,211			325,328			(2,117	)
Equity:
Retained earnings (accumulated deficit)		(226,494	)		(229,235	)		2,741

Issued but Not Adopted

Background and Basis of Presentation (Tables)

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Summary of Activity in Product Warranty Accrual, Included in Other Accrued Liabilities

The following table summarizes the activity in the product warranty accrual, included in other accrued liabilities:

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2018			2017			2018			2017
Product warranty accrual, beginning of period	$	14,846		$	20,283		$	16,928		$	21,631
Provision for warranty claims		1,296			284			3,174			4,515
Warranty claims paid		(1,660	)		(2,033	)		(5,573	)		(7,751	)
Foreign exchange		(11	)		(62	)		(58	)		77
Product warranty accrual, end of period	$	14,471		$	18,472		$	14,471		$	18,472

Summary of Earnings, Weighted Average Common Shares and Potential Common Shares Outstanding

The following table presents the basis for the earnings per share computations (in thousands, except per share data):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2018		2017		2018		2017
Numerator:
Net income for basic and diluted earnings per share	$	63,843	$	51,157	$	163,500	$	140,183

Denominator:
Weighted average common shares outstanding - basic		192,219		191,824		191,920		192,973
Dilutive effect of equity-based awards		3,140		3,991		3,450		4,414
Weighted average common shares outstanding - diluted		195,359		195,815		195,370		197,387

Earnings per share:
Basic	$	0.33	$	0.27	$	0.85	$	0.73
Diluted	$	0.33	$	0.26	$	0.84	$	0.71

Summary of New Revenue Recognition Standard on Condensed Consolidated Financial Statements

The impact of adoption of the new revenue recognition standard on the condensed consolidated financial statements was as follows:

	Three Months Ended September 30, 2018						Nine Months Ended September 30, 2018
	As Reported		Amounts Without Adoption of ASU No. 2014-09		Effect of Change Increase / (Decrease)		As Reported		Amounts Without Adoption of ASU No. 2014-09		Effect of Change Increase / (Decrease)
Net sales	$	1,150,405	$	1,148,956	$	1,449	$	3,510,778	$	3,511,013	$	(235	)
Cost of sales		726,531		726,314		217		2,204,194		2,203,498		696
Operating income		132,225		130,993		1,232		400,639		401,570		(931	)
Income tax expense		1,763		1,483		280		51,367		51,625		(258	)
Net income		63,843		62,891		952		163,500		164,173		(673	)

	As of September 30, 2018
	As Reported			Amounts Without Adoption of ASU No. 2014-09			Effect of Change Increase / (Decrease)
Assets:
Accounts receivable, less allowance for doubtful accounts	$	901,096		$	896,592		$	4,504
Inventories, net		490,767			494,647			(3,880	)
Liabilities:
Other accrued liabilities		323,211			325,328			(2,117	)
Equity:
Retained earnings (accumulated deficit)		(226,494	)		(229,235	)		2,741

Acquisitions (Tables)

9 Months Ended

Sep. 30, 2018

Cable Exchange [Member]

Allocation of Purchase Price

The allocation of the purchase price, based on estimates of the fair values of the assets acquired and liabilities assumed, is as follows (in millions):

	Estimated Fair Value
Cash and cash equivalents	$	3.5
Accounts receivable		6.4
Inventory		4.4
Property, plant and equipment		0.9
Goodwill		49.6
Identifiable intangible assets		61.1
Less: Liabilities assumed		(2.7	)
Net acquisition cost	$	123.2

Goodwill (Tables)

9 Months Ended

Sep. 30, 2018

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill by Reportable Segment

The following table presents goodwill by reportable segment (in millions):

	CCS			CMS			Total
Goodwill, gross at December 31, 2017	$	2,193.2		$	904.4		$	3,097.6
Foreign exchange		(26.0	)		(2.0	)		(28.0	)
Goodwill, gross at September 30, 2018		2,167.2			902.4			3,069.6
Accumulated impairment charges at December 31, 2017 and September 30, 2018		(51.5	)		(159.5	)		(211.0	)
Goodwill, net at September 30, 2018	$	2,115.7		$	742.9		$	2,858.6

Supplemental Financial Statement Information (Tables)

9 Months Ended

Sep. 30, 2018

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Schedule of Net Sales by Reportable Segment Disaggregated Based on Contract Type

The following table presents net sales by reportable segment, disaggregated based on contract type (in millions):

	Three Months Ended						Nine Months Ended
	September 30, 2018						September 30, 2018
	CCS		CMS		Total		CCS		CMS		Total
Contract type:
Product contracts	$	728.6	$	395.6	$	1,124.2	$	2,138.6	$	1,295.4	$	3,434.0
Project contracts		0.3		13.1		13.4		0.4		37.1		37.5
Other contracts		2.8		10.0		12.8		6.8		32.5		39.3
Consolidated net sales	$	731.7	$	418.7	$	1,150.4	$	2,145.8	$	1,365.0	$	3,510.8

Allowance for Doubtful Accounts

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2018			2017			2018			2017
Allowance for doubtful accounts, beginning of period	$	19,123		$	18,838		$	13,976		$	17,211
Charged to costs and expenses		39			283			6,563			1,336
Account write-offs and other		(1,021	)		(61	)		(2,398	)		513
Allowance for doubtful accounts, end of period	$	18,141		$	19,060		$	18,141		$	19,060

Summary of the Balance Sheet Location and Amounts of Contract Assets and Liabilities from Contracts with Customers

The following table provides the balance sheet location and amounts of contract assets and liabilities from contracts with customers as of September 30, 2018 and December 31, 2017.

Balance Sheet Location

September 30,

2018

December 31,

2017

Unbilled accounts receivable

Accounts receivable, less allowance for doubtful accounts

6,372

—

Deferred revenue

Other accrued liabilities

8,417

12,611

Inventories

	September 30, 2018		December 31, 2017
Raw materials	$	164,242	$	126,558
Work in process		104,168		98,526
Finished goods		222,357		219,857
	$	490,767	$	444,941

Other Accrued Liabilities

	September 30, 2018		December 31, 2017
Compensation and employee benefit liabilities	$	100,938	$	97,522
Accrued interest		48,727		23,485
Deferred revenue		8,417		12,611
Product warranty accrual		14,471		16,928
Restructuring reserve		14,195		24,961
Income taxes payable		14,835		16,949
Purchase price payable		10,631		2,098
Value-added taxes payable		15,378		11,838
Accrued professional fees		10,992		10,224
Other		84,627		70,364
	$	323,211	$	286,980

Changes in Accumulated Other Comprehensive Income (Loss), Net of Tax

The following table presents changes in accumulated other comprehensive income (AOCI), net of tax, and accumulated other comprehensive loss (AOCL), net of tax:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2018			2017			2018			2017
Foreign currency translation
Balance at beginning of period	$	(114,529	)	$	(127,048	)	$	(52,770	)	$	(254,148	)
Other comprehensive income (loss)		(22,470	)		47,087			(84,229	)		173,920
Amounts reclassified from AOCL		7			—			7			267
Balance at end of period	$	(136,992	)	$	(79,961	)	$	(136,992	)	$	(79,961	)

Net investment hedge
Balance at beginning of period	$	(2,528	)	$	(3,351	)	$	(4,981	)	$	—
Other comprehensive income (loss)		192			(1,471	)		2,645			(4,822	)
Balance at end of period	$	(2,336	)	$	(4,822	)	$	(2,336	)	$	(4,822	)

Defined benefit plan activity
Balance at beginning of period	$	(31,575	)	$	(34,202	)	$	(28,852	)	$	(33,473	)
Amounts reclassified from AOCL		(1,079	)		(353	)		(3,802	)		(1,082	)
Balance at end of period	$	(32,654	)	$	(34,555	)	$	(32,654	)	$	(34,555	)

Available-for-sale securities
Balance at beginning of period	$	—		$	1,685		$	—		$	2,508
Other comprehensive income (loss)		—			(154	)		—			3,159
Amounts reclassified from AOCI		—			(1,531	)		—			(5,667	)
Balance at end of period	$	—		$	—		$	—		$	—
Net AOCL at end of period	$	(171,982	)	$	(119,338	)	$	(171,982	)	$	(119,338	)

Cash Flow Information

	Nine Months Ended September 30,
	2018		2017
Cash paid during the period for:
Income taxes, net of refunds	$	94,693	$	102,952
Interest		146,413		133,797

Financing (Tables)

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Summary of Debt

	September 30, 2018			December 31, 2017
5.00% senior notes due March 2027	$	750,000		$	750,000
6.00% senior notes due June 2025		1,500,000			1,500,000
5.50% senior notes due June 2024		650,000			650,000
5.00% senior notes due June 2021		650,000			650,000
Senior secured term loan due December 2022		486,250			886,250
Senior secured revolving credit facility expires May 2020		—			—
Total principal amount of debt	$	4,036,250		$	4,436,250
Less: Original issue discount, net of amortization		(1,611	)		(3,389	)
Less: Debt issuance costs, net of amortization		(50,849	)		(63,460	)
Total long-term debt	$	3,983,790		$	4,369,401

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(e),(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21521-112644

Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21538-112644

Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644

+ Details

Derivatives and Hedging Activities (Tables)

9 Months Ended

Sep. 30, 2018

Not Designated as Hedging Instrument [Member]

Balance Sheet Location and Fair Value of Company

The following table presents the balance sheet location and fair value of the Company’s derivatives not designated as hedging instruments:

		Fair Value of Asset (Liability)
	Balance Sheet Location	September 30, 2018			December 31, 2017
Foreign currency contracts	Prepaid expenses and other current assets	$	1,542		$	9,050
Foreign currency contracts	Other accrued liabilities		(6,574	)		(574	)
Total derivatives not designated as hedging instruments		$	(5,032	)	$	8,476

Pretax Impact of Foreign Currency Forward Contracts, Both Matured and Outstanding, not Designated as Hedging Instruments

The pretax impact of these foreign currency forward contracts, both matured and outstanding, on the Condensed Consolidated Statements of Operations and Comprehensive Income is as follows:

Foreign Currency Forward Contracts	Location of Gain (Loss)	Gain (Loss) Recognized
Three Months Ended September 30, 2018	Other income (expense), net	$	(4,902	)
Three Months Ended September 30, 2017	Other income (expense), net	$	8,458
Nine Months Ended September 30, 2018	Other income (expense), net	$	(12,463	)
Nine Months Ended September 30, 2017	Other income (expense), net	$	22,866

Derivative Instruments Designated as Net Investment Hedge [Member]

Balance Sheet Location and Fair Value of Company

The following table presents the balance sheet location and fair value of the derivative instruments designated as net investment hedges:

		Fair Value of Asset (Liability)
	Balance Sheet Location	September 30, 2018		December 31, 2017
Foreign currency contracts	Prepaid expenses and other current assets	$	2,197	$	—
Foreign currency contracts	Other noncurrent assets		67		—
Foreign currency contracts	Other accrued liabilities		—		(403	)
Total derivatives designated as net investment hedging instruments		$	2,264	$	(403	)

After Tax Impact of Foreign Currency Forward Contracts, Designated as Net Investment Hedging Instruments

Foreign Currency Forward Contracts	Location of Gain (Loss)	Effective Portion of Gain (Loss) Recognized
Three Months Ended September 30, 2018	Other comprehensive income (loss), net of tax	$	192
Three Months Ended September 30, 2017	Other comprehensive income (loss), net of tax	$	(1,471	)
Nine Months Ended September 30, 2018	Other comprehensive income (loss), net of tax	$	2,645
Nine Months Ended September 30, 2017	Other comprehensive income (loss), net of tax	$	(4,822	)

Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2018

Fair Value Disclosures [Abstract]

Carrying Amounts, Estimated Fair Values and Valuation Input Levels of the Company's Available-for-Sale Securities, Foreign Currency Contracts and Debt Instruments

	September 30, 2018				December 31, 2017
	Carrying Amount		Fair Value		Carrying Amount		Fair Value		Valuation Inputs
Assets:
Foreign currency contracts	$	3,806	$	3,806	$	9,050	$	9,050	Level 2
Liabilities:
5.00% senior notes due 2027		750,000		725,250		750,000		753,750	Level 2
6.00% senior notes due 2025		1,500,000		1,545,000		1,500,000		1,591,800	Level 2
5.50% senior notes due 2024		650,000		655,720		650,000		676,780	Level 2
5.00% senior notes due 2021		650,000		652,405		650,000		661,375	Level 2
Senior secured term loan due 2022, at par		486,250		490,796		886,250		892,343	Level 2
Foreign currency contracts		6,574		6,574		977		977	Level 2

Segments and Geographic Information (Tables)

9 Months Ended

Sep. 30, 2018

Segment Reporting [Abstract]

Summary of Financial Information by Reportable Segment

The following table provides summary financial information by reportable segment (in millions):

	September 30, 2018		December 31, 2017
Identifiable segment-related assets:
CCS	$	4,394.8	$	4,546.0
CMS		1,926.1		1,995.8
Total identifiable segment-related assets		6,320.9		6,541.8
Reconciliation to total assets:
Cash and cash equivalents		352.4		454.0
Deferred income tax assets		45.0		45.9
Total assets	$	6,718.3	$	7,041.7

Summary of Net Sales, Adjusted Operating Income, Depreciation Expense and Additions to PP&E by Reportable Segment

The following table provides net sales, adjusted operating income, depreciation expense and additions to property, plant and equipment by reportable segment (in millions):

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2018			2017			2018			2017
Net sales:
CCS	$	731.7		$	708.7		$	2,145.8		$	2,116.0
CMS		418.7			420.1			1,365.0			1,324.2
Consolidated net sales	$	1,150.4		$	1,128.8		$	3,510.8		$	3,440.2

Segment adjusted operating income:
CCS	$	147.4		$	138.5		$	399.0		$	398.7
CMS		71.6			83.6			259.8			280.3
Total segment adjusted operating income		219.0			222.1			658.8			679.0
Amortization of intangible assets		(65.8	)		(68.3	)		(199.5	)		(202.9	)
Restructuring costs, net		(7.1	)		(5.4	)		(19.7	)		(24.5	)
Equity-based compensation		(11.3	)		(11.0	)		(33.7	)		(31.6	)
Integration and transaction costs		(2.6	)		(12.0	)		(5.3	)		(38.2	)
Consolidated operating income	$	132.2		$	125.4		$	400.6		$	381.8

Depreciation expense:
CCS	$	13.3		$	14.6		$	41.6		$	43.5
CMS		5.4			6.0			16.6			17.3
Consolidated depreciation expense	$	18.7		$	20.6		$	58.2		$	60.8

Additions to property, plant and equipment:
CCS	$	18.1		$	12.9		$	39.6		$	33.4
CMS		6.4			7.7			15.8			17.8
Consolidated additions to property, plant and equipment	$	24.5		$	20.6		$	55.4		$	51.2

Summary of Sales by Geographic Region, Based on Destination of Product Shipments

Sales by geographic region, based on the destination of product shipments, were as follows (in millions):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2018		2017		2018		2017
United States	$	653.0	$	595.3	$	1,975.1	$	1,887.5
Europe, Middle East and Africa		235.6		231.0		738.7		698.6
Asia Pacific		179.3		218.6		551.1		604.3
Caribbean and Latin America		59.4		62.2		177.1		177.1
Canada		23.1		21.7		68.8		72.7
Consolidated net sales	$	1,150.4	$	1,128.8	$	3,510.8	$	3,440.2

Restructuring Costs (Tables)

9 Months Ended

Sep. 30, 2018

Summary of Company's Net Pretax Restructuring Charges

The Company’s net pretax restructuring charges, by segment, were as follows:

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2018			2017			2018		2017
CCS	$	(409	)	$	5,569		$	6,648	$	19,922
CMS		7,479			(209	)		13,090		4,599
Total	$	7,070		$	5,360		$	19,738	$	24,521

Restructuring Reserves Included in Company's Condensed Consolidated Balance Sheets

Restructuring reserves were included in the Company’s Condensed Consolidated Balance Sheets as follows:

	September 30, 2018		December 31, 2017
Other accrued liabilities	$	14,195	$	24,961
Other noncurrent liabilities		6,153		7,036
Total liability	$	20,348	$	31,997

BNS Integration Restructuring Plan [Member]

Activity within Liability Established for Restructuring Actions, Included in Other Accrued Liabilities

	Employee- Related Costs			Lease Termination Costs			Fixed Asset Related Costs			Total
Balance at June 30, 2018	$	14,555		$	652		$	—		$	15,207
Additional charge recorded		6,120			656			(1,733	)		5,043
Cash paid		(6,710	)		(830	)		(159	)		(7,699	)
Consideration received		—			—			6,609			6,609
Foreign exchange and other non-cash items		(40	)		(4	)		(4,717	)		(4,761	)
Balance at September 30, 2018	$	13,925		$	474		$	—		$	14,399

Balance at December 31, 2017	$	25,588		$	1,080		$	—		$	26,668
Additional charge recorded		17,149			1,465			(1,026	)		17,588
Cash paid		(28,531	)		(2,053	)		(553	)		(31,137	)
Consideration received		—			—			11,123			11,123
Foreign exchange and other non-cash items		(281	)		(18	)		(9,544	)		(9,843	)
Balance at September 30, 2018	$	13,925		$	474		$	—		$	14,399

Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2018

Compensation And Retirement Disclosure [Abstract]

Summary of Pension Plans

Pension Plans

	Three Months Ended
	September 30,
	U.S. Plans						Non-U.S. Plans
	2018			2017			2018			2017
Service cost	$	—		$	—		$	967		$	1,262
Interest cost		1,323			1,490			1,257			1,355
Recognized actuarial loss		120			164			307			387
Amortization of prior service cost		—			—			10			—
Expected return on plan assets		(1,597	)		(1,687	)		(1,883	)		(1,946	)
Net periodic benefit cost (income)	$	(154	)	$	(33	)	$	658		$	1,058

	Nine Months Ended
	September 30,
	U.S. Plans						Non-U.S. Plans
	2018			2017			2018			2017
Service cost	$	—		$	—		$	3,154		$	3,623
Interest cost		3,969			4,470			3,926			3,938
Recognized actuarial loss		360			492			942			1,132
Amortization of prior service cost		—			—			31			—
Expected return on plan assets		(4,791	)		(5,061	)		(5,841	)		(5,642	)
Net periodic benefit cost (income)	$	(462	)	$	(99	)	$	2,212		$	3,051

Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2018

Equity [Abstract]

Summary of Location of Equity-Based Compensation Expense on Statement of Operations

The following table shows the location of equity-based compensation expense on the statement of operations:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2018		2017		2018		2017
Selling, general and administrative	$	8,629	$	8,365	$	25,691	$	24,041
Cost of sales		1,433		1,386		4,267		4,001
Research and development		1,265		1,223		3,765		3,530
Total equity-based compensation expense	$	11,327	$	10,974	$	33,723	$	31,572

Summary of Stock Option Activity

The following table summarizes the stock option activity (in thousands, except per share data and years):

	Shares			Weighted Average Option Exercise Price Per Share		Weighted Average Remaining Contractual Term in Years		Aggregate Intrinsic Value
Options outstanding at June 30, 2018		4,784		$	15.30
Granted		5		$	31.36
Exercised		(1	)	$	27.80
Forfeited		—		$	—
Options outstanding at September 30, 2018		4,788		$	15.31		4.0	$	80,633

Options outstanding at December 31, 2017		4,830		$	13.01
Granted		482		$	38.34
Exercised		(435	)	$	11.47
Forfeited		(89	)	$	34.09
Options outstanding at September 30, 2018		4,788		$	15.31		4.0	$	80,633
Options vested at September 30, 2018		3,955		$	10.79		3.0	$	80,151
Options unvested at September 30, 2018		833		$	36.76		8.8	$	482

Summary of Exercise Price

The exercise prices of outstanding options at September 30, 2018 were in the following ranges (in thousands, except per share data and years):

	Options Outstanding						Options Exercisable
Range of Exercise Prices	Shares		Weighted Average Remaining Contractual Life in Years		Weighted Average Exercise Price Per Share		Shares		Weighted Average Exercise Price Per Share
$2.96 to $5.74		2,502		2.1	$	5.42		2,502	$	5.42
$5.75 to $22.99		653		1.6	$	8.58		653	$	8.58
$23.00 to $42.32		1,633		7.9	$	33.16		800	$	29.41
$2.96 to $42.32		4,788		4.0	$	15.31		3,955	$	10.79

Summary of Weighted Average Assumptions Used to Estimate Fair Value of Stock Option

The following table presents the weighted average assumptions used to estimate the fair value of stock option awards granted during the three and nine months ended September 30, 2018 and 2017.

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2018			2017	2018			2017
Expected option term (in years)		6.0		*		6.0			6.0
Risk-free interest rate		2.8	%	*		2.7	%		2.0	%
Expected volatility		35.0	%	*		35.0	%		40.0	%
Weighted average exercise price	$	31.36		*	$	38.34		$	38.00
Weighted average fair value at grant date	$	12.18		*	$	14.83		$	15.72

*No stock options were granted during the three months ended September 30, 2017.

Summary of RSU Activity

The following table summarizes the RSU activity (in thousands, except per share data):

	Restricted Stock Units			Weighted Average Grant Date Fair Value Per Share
Non-vested RSUs at June 30, 2018		2,155		$	35.43
Granted		2		$	31.36
Vested and shares issued		(8	)	$	34.31
Forfeited		(61	)	$	35.47
Non-vested RSUs at September 30, 2018		2,088		$	35.43

Non-vested RSUs at December 31, 2017		2,279		$	31.83
Granted		1,122		$	37.97
Vested and shares issued		(1,081	)	$	30.80
Forfeited		(232	)	$	33.88
Non-vested RSUs at September 30, 2018		2,088		$	35.43

Summary of PSU Activity

The following table summarizes the PSU activity (in thousands, except per share data):

	Performance Share Units			Weighted Average Grant Date Fair Value Per Share
Non-vested PSUs at June 30, 2018		294		$	34.07
Granted		2		$	31.36
Vested and shares issued		—		$	—
Forfeited		—		$	—
Non-vested PSUs at September 30, 2018		296		$	34.05

Non-vested PSUs at December 31, 2017		344		$	26.75
Granted		186		$	38.34
Vested and shares issued		(203	)	$	26.80
Forfeited		(31	)	$	26.27
Non-vested PSUs at September 30, 2018		296		$	34.05

Background and Basis of Presentation - Additional Information (Detail) shares in Millions		3 Months Ended		9 Months Ended
	Dec. 22, 2017 USD ($)	Sep. 30, 2018 USD ($) Customer shares	Sep. 30, 2017 USD ($) Customer shares	Sep. 30, 2018 USD ($) Customer shares	Sep. 30, 2017 USD ($) Customer shares	Jan. 01, 2018 USD ($)
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Product warranty term				These product warranties extend over periods ranging from one to twenty-five years from the date of sale, depending upon the product subject to the warranty.
Goodwill impairment charges		$ 0	$ 0	$ 0	$ 0
Intangible asset impairment charges, excluding goodwill		0	0	0	0
Other long-Lived assets Impairments		$ 0	$ 0	$ 0	$ 0
Statutory tax rate				21.00%	35.00%
Effective income tax rate		2.70%	24.80%	23.90%	23.60%
Reduction in tax expense		$ 24,100,000
Impact of recent accounting pronouncements			$ (400,000)	$ 4,700,000	$ (13,500,000)
Net periodic benefit cost (income)		1,300,000		3,800,000
Other Income (Expense), Net [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Net periodic benefit cost (income)		2,300,000		6,900,000
Operating Income [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Net periodic benefit cost (income)		1,000,000		3,200,000
ASU No. 2014-09 [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Cumulative effect on retained earnings (accumulated deficit), net of tax		$ 3,400,000		3,400,000
ASU No. 2014-09 [Member] \| Revenue [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Adjustment for new accounting pronouncement				$ 8,000,000
ASU No. 2016-16 [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Cumulative effect on retained earnings (accumulated deficit), net of tax						$ 2,600,000
ASU No. 2017-07 [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Impact on previously reported income before income taxes			0		0
ASU No. 2017-07 [Member] \| Reclassified Net Periodic Benefit Operating income From Operating Income And Other Expense [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Adjustment for new accounting pronouncement			$ 1,400,000		$ 4,200,000
Stock Compensation Plan [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Amount of outstanding equity based awards not included in computation of diluted earnings per share \| shares		2.5	1.7	1.8	1.3
U.S. Tax Reform Legislation [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Statutory tax rate	21.00%
Provisional deferred tax benefit from revaluing U.S. deferred tax assets and liabilities	$ 2,500,000
Minimum [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Product warranties expiration term				1 year
Maximum [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Product warranties expiration term				25 years
Maximum [Member] \| U.S. Tax Reform Legislation [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Measurement period to finalize recording of related tax impacts				1 year
Customer Concentration Risk [Member] \| Sales Revenue, Net [Member] \| Anixter International Inc. [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Concentration risk percentage		11.00%	12.00%	11.00%	11.00%
Customer Concentration Risk [Member] \| Sales Revenue, Net [Member] \| Other Customers [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Other direct customer accounted for 10% or more of the Company's total net sales \| Customer		0	0	0	0
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Anixter International Inc. [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Concentration risk percentage				12.00%
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Other Customers [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Other direct customer accounted for 10% or more of the Company's total net sales \| Customer				0
Product Concentration Risk [Member] \| Sales Revenue, Net [Member] \| Maximum [Member] \| ASU No. 2014-09 [Member] \| Multi-element Contracts [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Concentration risk percentage		2.00%	2.00%	2.00%	2.00%

Background and Basis of Presentation - Summary of Activity in Product Warranty Accrual, Included in Other Accrued Liabilities (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Product warranty accrual, beginning of period	$ 14,846	$ 20,283	$ 16,928	$ 21,631
Provision for warranty claims	1,296	284	3,174	4,515
Warranty claims paid	(1,660)	(2,033)	(5,573)	(7,751)
Foreign exchange	(11)	(62)	(58)	77
Product warranty accrual, end of period	$ 14,471	$ 18,472	$ 14,471	$ 18,472

Background and Basis of Presentation - Summary of Earnings, Weighted Average Common Shares and Potential Common Shares Outstanding (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Numerator:
Net income for basic and diluted earnings per share	$ 63,843	$ 51,157	$ 163,500	$ 140,183
Denominator:
Weighted average common shares outstanding - basic	192,219	191,824	191,920	192,973
Dilutive effect of equity-based awards	3,140	3,991	3,450	4,414
Weighted average common shares outstanding - diluted	195,359	195,815	195,370	197,387
Earnings per share:
Basic	$ 0.33	$ 0.27	$ 0.85	$ 0.73
Diluted	$ 0.33	$ 0.26	$ 0.84	$ 0.71

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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+ Details

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

Background and Basis of Presentation - Summary of New Revenue Recognition Standard on Condensed Consolidated Financial Statements (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Net sales	$ 1,150,405	$ 1,128,775	$ 3,510,778	$ 3,440,150
Cost of sales	726,531	700,170	2,204,194	2,085,973
Operating income	132,225	125,428	400,639	381,789
Income tax expense	1,763	16,862	51,367	43,373
Net income	63,843	$ 51,157	163,500	$ 140,183
Assets
Accounts receivable, less allowance for doubtful accounts	901,096		901,096		$ 898,829
Inventories, net	490,767		490,767		444,941
Liabilities:
Other accrued liabilities	323,211		323,211		286,980
Stockholders' equity:
Retained earnings (accumulated deficit)	(226,494)		(226,494)		$ (395,998)
Amounts Without Adoption of ASU No. 2014-09 [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Net sales	1,148,956		3,511,013
Cost of sales	726,314		2,203,498
Operating income	130,993		401,570
Income tax expense	1,483		51,625
Net income	62,891		164,173
Assets
Accounts receivable, less allowance for doubtful accounts	896,592		896,592
Inventories, net	494,647		494,647
Liabilities:
Other accrued liabilities	325,328		325,328
Stockholders' equity:
Retained earnings (accumulated deficit)	(229,235)		(229,235)
ASU No. 2014-09 [Member] \| Effect of Change Increase / (Decrease) [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Net sales	1,449		(235)
Cost of sales	217		696
Operating income	1,232		(931)
Income tax expense	280		(258)
Net income	952		(673)
Assets
Accounts receivable, less allowance for doubtful accounts	4,504		4,504
Inventories, net	(3,880)		(3,880)
Liabilities:
Other accrued liabilities	(2,117)		(2,117)
Stockholders' equity:
Retained earnings (accumulated deficit)	$ 2,741		$ 2,741

Acquisitions - Additional Information (Detail) - Cable Exchange [Member] $ in Millions	Aug. 01, 2017 USD ($)
Business Acquisition [Line Items]
Total consideration transferred, amount	$ 108.7
Cash paid for acquired assets and assumed liabilities	$ 105.2
Business acquisition date	Aug. 01, 2017
Cash payment due	$ 14.5

Acquisitions - Allocation of Purchase Price (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Goodwill	$ 2,858,640	$ 2,886,630
Cable Exchange [Member]
Business Acquisition [Line Items]
Cash and cash equivalents	3,500
Accounts receivable	6,400
Inventory	4,400
Property, plant and equipment	900
Goodwill	49,600
Identifiable intangible assets	61,100
Less: Liabilities assumed	(2,700)
Net acquisition cost	$ 123,200

Goodwill - Goodwill by Reportable Segment (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Goodwill [Line Items]
Goodwill, gross, Beginning balance	$ 3,097,600
Foreign exchange	(28,000)
Goodwill, gross, Ending balance	3,069,600
Accumulated impairment charges	(211,000)	$ (211,000)
Goodwill, net	2,858,640	2,886,630
CCS [Member]
Goodwill [Line Items]
Goodwill, gross, Beginning balance	2,193,200
Foreign exchange	(26,000)
Goodwill, gross, Ending balance	2,167,200
Accumulated impairment charges	(51,500)	(51,500)
Goodwill, net	2,115,700
CMS [Member]
Goodwill [Line Items]
Goodwill, gross, Beginning balance	904,400
Foreign exchange	(2,000)
Goodwill, gross, Ending balance	902,400
Accumulated impairment charges	(159,500)	$ (159,500)
Goodwill, net	$ 742,900

Supplemental Financial Statement Information - Schedule of Net Sales by Reportable Segment Disaggregated Based on Contract Type (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Disaggregation Of Revenue [Line Items]
Consolidated net sales	$ 1,150,405	$ 1,128,775	$ 3,510,778	$ 3,440,150
CCS [Member]
Disaggregation Of Revenue [Line Items]
Consolidated net sales	731,700	708,700	2,145,800	2,116,000
CMS [Member]
Disaggregation Of Revenue [Line Items]
Consolidated net sales	418,700	$ 420,100	1,365,000	$ 1,324,200
Product Contracts [Member]
Disaggregation Of Revenue [Line Items]
Consolidated net sales	1,124,200		3,434,000
Product Contracts [Member] \| CCS [Member]
Disaggregation Of Revenue [Line Items]
Consolidated net sales	728,600		2,138,600
Product Contracts [Member] \| CMS [Member]
Disaggregation Of Revenue [Line Items]
Consolidated net sales	395,600		1,295,400
Project Contracts [Member]
Disaggregation Of Revenue [Line Items]
Consolidated net sales	13,400		37,500
Project Contracts [Member] \| CCS [Member]
Disaggregation Of Revenue [Line Items]
Consolidated net sales	300		400
Project Contracts [Member] \| CMS [Member]
Disaggregation Of Revenue [Line Items]
Consolidated net sales	13,100		37,100
Other Contracts [Member]
Disaggregation Of Revenue [Line Items]
Consolidated net sales	12,800		39,300
Other Contracts [Member] \| CCS [Member]
Disaggregation Of Revenue [Line Items]
Consolidated net sales	2,800		6,800
Other Contracts [Member] \| CMS [Member]
Disaggregation Of Revenue [Line Items]
Consolidated net sales	$ 10,000		$ 32,500

Supplemental Financial Statement Information - Allowance for Doubtful Accounts (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Accounts Notes And Loans Receivable Classified [Abstract]
Allowance for doubtful accounts, beginning of period	$ 19,123	$ 18,838	$ 13,976	$ 17,211
Charged to costs and expenses	39	283	6,563	1,336
Account write-offs and other	(1,021)	(61)	(2,398)	513
Allowance for doubtful accounts, end of period	$ 18,141	$ 19,060	$ 18,141	$ 19,060

Supplemental Financial Statement Information - Summary of the Balance Sheet Location and Amounts of Contract Assets and Liabilities from Contracts with Customers (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Accounts Receivable, Less Allowance for Doubtful Accounts [Member]
Schedule Of Contract Assets And Liabilities [Line Items]
Unbilled accounts receivable	$ 6,372
Other Accrued Liabilities [Member]
Schedule Of Contract Assets And Liabilities [Line Items]
Deferred revenue	$ 8,417	$ 12,611

Supplemental Financial Statement Information - Inventories (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Inventory Disclosure [Abstract]
Raw materials	$ 164,242	$ 126,558
Work in process	104,168	98,526
Finished goods	222,357	219,857
Inventories, net	$ 490,767	$ 444,941

Supplemental Financial Statement Information - Other Accrued Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016
Accrued Liabilities Current [Abstract]
Compensation and employee benefit liabilities	$ 100,938		$ 97,522
Accrued interest	48,727		23,485
Deferred revenue	8,417		12,611
Product warranty accrual	14,471	$ 14,846	16,928	$ 18,472	$ 20,283	$ 21,631
Restructuring reserve	14,195		24,961
Income taxes payable	14,835		16,949
Purchase price payable	10,631		2,098
Value-added taxes payable	15,378		11,838
Accrued professional fees	10,992		10,224
Other	84,627		70,364
Other Accrued Liabilities	$ 323,211		$ 286,980

Supplemental Financial Statement Information - Changes in Accumulated Other Comprehensive Income (Loss), Net of Tax (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			$ 1,647,826
Ending balance	$ 1,755,070	$ 1,550,634	1,755,070	$ 1,550,634
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(114,529)	(127,048)	(52,770)	(254,148)
Other comprehensive income (loss)	(22,470)	47,087	(84,229)	173,920
Amounts reclassified from AOCI	7		7	267
Ending balance	(136,992)	(79,961)	(136,992)	(79,961)
Net Investment Hedge [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(2,528)	(3,351)	(4,981)
Other comprehensive income (loss)	192	(1,471)	2,645	(4,822)
Ending balance	(2,336)	(4,822)	(2,336)	(4,822)
Defined Benefit Plan Activity [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(31,575)	(34,202)	(28,852)	(33,473)
Amounts reclassified from AOCI	(1,079)	(353)	(3,802)	(1,082)
Ending balance	(32,654)	(34,555)	(32,654)	(34,555)
Available-for-Sale Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance		1,685		2,508
Other comprehensive income (loss)		(154)		3,159
Amounts reclassified from AOCI		(1,531)		(5,667)
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			(86,603)	(285,113)
Ending balance	$ (171,982)	$ (119,338)	$ (171,982)	$ (119,338)

Supplemental Financial Statement Information - Cash Flow Information (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash paid during the period for:
Income taxes, net of refunds	$ 94,693	$ 102,952
Interest	$ 146,413	$ 133,797

Financing - Summary of Debt (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Total principal amount of debt	$ 4,036,250	$ 4,436,250
Less: Original issue discount, net of amortization	(1,611)	(3,389)
Less: Debt issuance costs, net of amortization	(50,849)	(63,460)
Total long-term debt	3,983,790	4,369,401
5.00% Senior Notes Due March 2027 [Member]
Debt Instrument [Line Items]
Senior notes	750,000	750,000
6.00% Senior Notes Due June 2025 [Member]
Debt Instrument [Line Items]
Senior notes	1,500,000	1,500,000
5.50% Senior Notes Due June 2024 [Member]
Debt Instrument [Line Items]
Senior notes	650,000	650,000
5.00% Senior Notes Due June 2021 [Member]
Debt Instrument [Line Items]
Senior notes	650,000	650,000
Senior Secured Term Loan Due December 2022 [Member]
Debt Instrument [Line Items]
Senior secured term loans	$ 486,250	$ 886,250

Financing - Summary of Debt (Parenthetical) (Detail)	9 Months Ended
Financing - Summary of Debt (Parenthetical) (Detail)	Sep. 30, 2018	Dec. 31, 2017
5.00% Senior Notes Due March 2027 [Member]
Debt Instrument [Line Items]
Maturity date	Mar. 31, 2027
Interest rate	5.00%	5.00%
6.00% Senior Notes Due June 2025 [Member]
Debt Instrument [Line Items]
Maturity date	Jun. 30, 2025
Interest rate	6.00%	6.00%
5.50% Senior Notes Due June 2024 [Member]
Debt Instrument [Line Items]
Maturity date	Jun. 30, 2024
Interest rate	5.50%	5.50%
5.00% Senior Notes Due June 2021 [Member]
Debt Instrument [Line Items]
Maturity date	Jun. 30, 2021
Interest rate	5.00%	5.00%
Senior Secured Term Loan Due December 2022 [Member]
Debt Instrument [Line Items]
Maturity date	Dec. 31, 2022
Senior Secured Revolving Credit Facility Expires May 2020 [Member]
Debt Instrument [Line Items]
Maturity date	May 31, 2020

Financing - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended			3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2018	Aug. 31, 2018	Jul. 31, 2018	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Debt Instrument [Line Items]
Repayment of borrowing						$ 550,000	$ 805,379
Total assets	$ 6,718,296			$ 6,718,296		6,718,296		$ 7,041,666
Total liabilities	$ 4,963,226			4,963,226		4,963,226		$ 5,393,840
Net sales				$ 1,150,405	$ 1,128,775	$ 3,510,778	3,440,150
Weighted average effective interest rate	5.70%			5.70%		5.70%		5.45%
Non Guarantor Subsidiaries Concentration Risk [Member]
Debt Instrument [Line Items]
Total assets	$ 2,411,000			$ 2,411,000		$ 2,411,000		$ 2,587,000
Total liabilities	486,000			486,000		486,000		$ 569,000
Net sales				$ 453,000	$ 494,000	$ 1,388,000	$ 1,405,000
Assets, Total [Member] \| Non Guarantor Subsidiaries Concentration Risk [Member]
Debt Instrument [Line Items]
Concentration risk percentage						36.00%		37.00%
Liabilities, Total [Member] \| Non Guarantor Subsidiaries Concentration Risk [Member]
Debt Instrument [Line Items]
Concentration risk percentage						10.00%		11.00%
Sales Revenue, Net [Member] \| Non Guarantor Subsidiaries Concentration Risk [Member]
Debt Instrument [Line Items]
Concentration risk percentage				39.00%	44.00%	40.00%	41.00%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Repayment of borrowing	50,000	$ 100,000
Senior secured credit facilities current borrowing capacity	$ 521,600			$ 521,600		$ 521,600
Senior secured credit facilities amount borrowed			$ 150,000
Senior Secured Term Loan Due 2022 [Member]
Debt Instrument [Line Items]
Repayments of senior debt			400,000
OID and debt issuance costs			7,400
Senior Secured Term Loan Due 2022 [Member] \| Asset Based Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Repayments of senior debt			150,000
Senior Secured Term Loan Due 2022 [Member] \| Cash on Hand [Member]
Debt Instrument [Line Items]
Repayments of senior debt			$ 250,000

Derivatives and Hedging Activities - Additional Information (Detail) - Foreign Currency Contracts [Member] $ in Millions	9 Months Ended
	Sep. 30, 2018 USD ($)
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional value	$ 331
Not Designated as Hedging Instrument [Member] \| Maximum [Member]
Derivatives, Fair Value [Line Items]
Maturities ranging	12 months
Derivative Instruments Designated as Net Investment Hedge [Member]
Derivatives, Fair Value [Line Items]
Notional value	$ 55
Derivative Instruments Designated as Net Investment Hedge [Member] \| Maximum [Member]
Derivatives, Fair Value [Line Items]
Maturities ranging	15 months

Derivatives and Hedging Activities - Balance Sheet Location and Fair Value of the Company's Derivatives (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Total derivatives	$ (5,032)	$ 8,476
Not Designated as Hedging Instrument [Member] \| Prepaid Expenses and Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Foreign currency contracts	1,542	9,050
Not Designated as Hedging Instrument [Member] \| Other Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Foreign currency contracts	(6,574)	(574)
Derivative Instruments Designated as Net Investment Hedge [Member]
Derivatives, Fair Value [Line Items]
Total derivatives	2,264	(403)
Derivative Instruments Designated as Net Investment Hedge [Member] \| Prepaid Expenses and Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Foreign currency contracts	2,197
Derivative Instruments Designated as Net Investment Hedge [Member] \| Other Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Foreign currency contracts		$ (403)
Derivative Instruments Designated as Net Investment Hedge [Member] \| Other Noncurrent Assets [Member]
Derivatives, Fair Value [Line Items]
Foreign currency contracts	$ 67

Derivatives and Hedging Activities - Pretax Impact of Foreign Currency Forward Contracts, Both Matured and Outstanding, not Designated as Hedging Instruments (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Other Income (Expense), Net [Member] \| Foreign Currency Contracts [Member] \| Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized on Foreign Currency Forward Contracts	$ (4,902)	$ 8,458	$ (12,463)	$ 22,866

Derivatives and Hedging Activities - After Tax Impact of Foreign Currency Forward Contracts, Designated as Net Investment Hedging Instruments (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Foreign Currency Contracts [Member] \| Derivative Instruments Designated as Net Investment Hedge [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Effective Portion of Gain (Loss) Recognized on Foreign Currency Forward Contracts	$ 192	$ (1,471)	$ 2,645	$ (4,822)

Fair Value Measurements - Carrying Amounts, Estimated Fair Values and Valuation Input Levels of the Company's Available-for-Sale Securities, Foreign Currency Contracts and Debt Instruments (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Carrying Amount [Member] \| Prepaid Expenses and Other Current Assets [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Foreign currency contracts	$ 3,806	$ 9,050
Carrying Amount [Member] \| Other Accrued Liabilities [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Foreign currency contracts	6,574	977
Fair Value [Member] \| Prepaid Expenses and Other Current Assets [Member] \| Level 2 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Foreign currency contracts	3,806	9,050
Fair Value [Member] \| Other Accrued Liabilities [Member] \| Level 2 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Foreign currency contracts	6,574	977
5.00% Senior Notes Due 2027 [Member] \| Carrying Amount [Member] \| Long Term Debt Noncurrent [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior notes	750,000	750,000
5.00% Senior Notes Due 2027 [Member] \| Fair Value [Member] \| Long Term Debt Noncurrent [Member] \| Level 2 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior notes	725,250	753,750
6.00% Senior Notes Due June 2025 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior notes	1,500,000	1,500,000
6.00% Senior Notes Due June 2025 [Member] \| Carrying Amount [Member] \| Long Term Debt Noncurrent [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior notes	1,500,000	1,500,000
6.00% Senior Notes Due June 2025 [Member] \| Fair Value [Member] \| Long Term Debt Noncurrent [Member] \| Level 2 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior notes	1,545,000	1,591,800
5.50% Senior Notes Due June 2024 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior notes	650,000	650,000
5.50% Senior Notes Due June 2024 [Member] \| Carrying Amount [Member] \| Long Term Debt Noncurrent [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior notes	650,000	650,000
5.50% Senior Notes Due June 2024 [Member] \| Fair Value [Member] \| Long Term Debt Noncurrent [Member] \| Level 2 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior notes	655,720	676,780
5.00% Senior Notes Due June 2021 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior notes	650,000	650,000
5.00% Senior Notes Due June 2021 [Member] \| Carrying Amount [Member] \| Long Term Debt Noncurrent [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior notes	650,000	650,000
5.00% Senior Notes Due June 2021 [Member] \| Fair Value [Member] \| Long Term Debt Noncurrent [Member] \| Level 2 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior notes	652,405	661,375
Senior Secured Term Loan Due 2022, at Par [Member] \| Carrying Amount [Member] \| Long Term Debt Noncurrent [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior secured debt	486,250	886,250
Senior Secured Term Loan Due 2022, at Par [Member] \| Fair Value [Member] \| Long Term Debt Noncurrent [Member] \| Level 2 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior secured term loans	$ 490,796	$ 892,343

Segments and Geographic Information - Summary of Financial Information by Reportable Segment (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Total assets	$ 6,718,296	$ 7,041,666
Cash and cash equivalents	352,397	453,977	$ 411,242	$ 428,228
Operating Segments [Member]
Segment Reporting Information [Line Items]
Total assets	6,320,900	6,541,800
Operating Segments [Member] \| CCS [Member]
Segment Reporting Information [Line Items]
Total assets	4,394,800	4,546,000
Operating Segments [Member] \| CMS [Member]
Segment Reporting Information [Line Items]
Total assets	1,926,100	1,995,800
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Cash and cash equivalents	352,400	454,000
Deferred income tax assets	$ 45,000	$ 45,900

Segments and Geographic Information - Summary of Net Sales, Adjusted Operating Income, Depreciation Expense and Additions to PP&E by Reportable Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Segment Reporting Information [Line Items]
Net sales	$ 1,150,405	$ 1,128,775	$ 3,510,778	$ 3,440,150
Segment adjusted operating income	219,000	222,100	658,800	679,000
Amortization of intangible assets	(65,782)	(68,271)	(199,453)	(202,890)
Restructuring costs, net	(7,070)	(5,360)	(19,738)	(24,521)
Equity-based compensation	(11,300)	(11,000)	(33,723)	(31,572)
Integration and transaction costs	(2,600)	(12,000)	(5,300)	(38,200)
Consolidated operating income	132,225	125,428	400,639	381,789
Depreciation expense	18,700	20,600	58,200	60,800
Additions to property, plant and equipment	24,500	20,600	55,448	51,152
CCS [Member]
Segment Reporting Information [Line Items]
Net sales	731,700	708,700	2,145,800	2,116,000
Segment adjusted operating income	147,400	138,500	399,000	398,700
Restructuring costs, net	409	(5,569)	(6,648)	(19,922)
Depreciation expense	13,300	14,600	41,600	43,500
Additions to property, plant and equipment	18,100	12,900	39,600	33,400
CMS [Member]
Segment Reporting Information [Line Items]
Net sales	418,700	420,100	1,365,000	1,324,200
Segment adjusted operating income	71,600	83,600	259,800	280,300
Restructuring costs, net	(7,479)	209	(13,090)	(4,599)
Depreciation expense	5,400	6,000	16,600	17,300
Additions to property, plant and equipment	$ 6,400	$ 7,700	$ 15,800	$ 17,800

Segments and Geographic Information - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Sales Revenue, Net [Member] \| Customers Located Outside of the U.S [Member]
Segment Reporting Information [Line Items]
Concentration risk percentage	43.20%	47.30%	43.70%	45.10%

Segments and Geographic Information - Summary of Sales by Geographic Region, Based on Destination of Product Shipments (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 1,150,405	$ 1,128,775	$ 3,510,778	$ 3,440,150
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	653,000	595,300	1,975,100	1,887,500
Europe, Middle East and Africa [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	235,600	231,000	738,700	698,600
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	179,300	218,600	551,100	604,300
Caribbean and Latin America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	59,400	62,200	177,100	177,100
Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 23,100	$ 21,700	$ 68,800	$ 72,700

Restructuring Costs - Summary of Company's Net Pretax Restructuring Charges (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring costs, net	$ 7,070	$ 5,360	$ 19,738	$ 24,521
CCS [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs, net	(409)	5,569	6,648	19,922
CMS [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs, net	$ 7,479	$ (209)	$ 13,090	$ 4,599

Restructuring Costs - Restructuring Reserves Included in Company's Condensed Consolidated Balance Sheets (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, current	$ 14,195	$ 24,961
Ending balance	20,348	31,997
Other Accrued Liabilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, current	14,195	24,961
Other Noncurrent Liabilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, non-current	$ 6,153	$ 7,036

Restructuring Costs - Additional Information (Detail) - USD ($)	9 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Restructuring Cost and Reserve [Line Items]
Liability for lease termination cost	$ 20,348,000	$ 31,997,000
BNS [Member]
Restructuring Cost and Reserve [Line Items]
Recognized restructuring charges	127,200,000
Cash payments	7,900,000
2019 to 2021 [Member] \| BNS [Member]
Restructuring Cost and Reserve [Line Items]
Additional cash payments	6,500,000
Cost Alignment Restructuring Plan [Member] \| Lease Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Liability for lease termination cost	5,900,000
Cost Alignment Restructuring Plan [Member] \| Remainder of 2018 [Member]
Restructuring Cost and Reserve [Line Items]
Cash payments, net of sublease income	300,000
Cost Alignment Restructuring Plan [Member] \| 2019 to 2022 [Member]
Restructuring Cost and Reserve [Line Items]
Additional cash payments	$ 5,600,000

Restructuring Costs - Activity within Liability Established for Restructuring Actions (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Restructuring Cost and Reserve [Line Items]
Beginning balance			$ 31,997
Additional charge recorded	$ 7,070	$ 5,360	19,738	$ 24,521
Ending balance	20,348		20,348
BNS Integration Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance	15,207		26,668
Additional charge recorded	5,043		17,588
Cash paid	(7,699)		(31,137)
Consideration received	6,609		11,123
Foreign exchange and other non-cash items	(4,761)		(9,843)
Ending balance	14,399		14,399
Employee-Related Costs [Member] \| BNS Integration Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance	14,555		25,588
Additional charge recorded	6,120		17,149
Cash paid	(6,710)		(28,531)
Foreign exchange and other non-cash items	(40)		(281)
Ending balance	13,925		13,925
Lease Termination Costs [Member] \| BNS Integration Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance	652		1,080
Additional charge recorded	656		1,465
Cash paid	(830)		(2,053)
Foreign exchange and other non-cash items	(4)		(18)
Ending balance	474		474
Fixed Asset Related Costs [Member] \| BNS Integration Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Additional charge recorded	(1,733)		(1,026)
Cash paid	(159)		(553)
Consideration received	6,609		11,123
Foreign exchange and other non-cash items	$ (4,717)		$ (9,544)

Employee Benefit Plans - Summary of Pension Plans (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost (income)	$ 1,300		$ 3,800
Pension Benefits [Member] \| U.S.Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	1,323	$ 1,490	3,969	$ 4,470
Recognized actuarial loss	120	164	360	492
Expected return on plan assets	(1,597)	(1,687)	(4,791)	(5,061)
Net periodic benefit cost (income)	(154)	(33)	(462)	(99)
Pension Benefits [Member] \| Non-U.S.Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	967	1,262	3,154	3,623
Interest cost	1,257	1,355	3,926	3,938
Recognized actuarial loss	307	387	942	1,132
Amortization of prior service cost	10		31
Expected return on plan assets	(1,883)	(1,946)	(5,841)	(5,642)
Net periodic benefit cost (income)	$ 658	$ 1,058	$ 2,212	$ 3,051

Employee Benefit Plans - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Sep. 30, 2018
Pension Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Company's contribution to defined benefit plans		$ 2.9	$ 8.7
Additional contribution amount for remaining fiscal period		$ 0.4	0.4
Contributions to annuity purchase for termination			$ 3.0
Pension Benefit Plans [Member] \| Minimum [Member] \| Other Income (Expense), Net [Member] \| Scenario Forecast [Member] \| Upon Termination of Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Unrecognized net actuarial gains (losses)	$ (33.0)
Pension Benefit Plans [Member] \| Maximum [Member] \| Other Income (Expense), Net [Member] \| Scenario Forecast [Member] \| Upon Termination of Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Unrecognized net actuarial gains (losses)	(35.0)
Other Postretirement Benefit Plans [Member] \| Minimum [Member] \| Other Income (Expense), Net [Member] \| Scenario Forecast [Member] \| Upon Termination of Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Unrecognized net actuarial gains (losses) and prior service credits	9.0
Other Postretirement Benefit Plans [Member] \| Maximum [Member] \| Other Income (Expense), Net [Member] \| Scenario Forecast [Member] \| Upon Termination of Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Unrecognized net actuarial gains (losses) and prior service credits	$ 10.0

Stockholders' Equity - Additional Information (Detail) - USD ($)		3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Sep. 30, 2018	Sep. 30, 2018	Dec. 31, 2017	Aug. 03, 2017
Stockholders Equity [Line Items]
Unrecognized compensation costs related to unvested stock options, restricted stock units (RSUs) and performance share units (PSUs)	$ 66,700,000	$ 66,700,000	$ 66,700,000
Recognition period of unrecognized compensation expense			1 year 4 months 24 days
Capitalized equity-based compensation costs	$ 0
Stock Options [Member]
Stockholders Equity [Line Items]
Vesting period, year			3 years
Contractual term			10 years
Projected dividend yield			0.00%
Performance Shares [Member]
Stockholders Equity [Line Items]
Vesting period, year			3 years
Maximum [Member] \| Restricted Stock Units (RSUs) [Member]
Stockholders Equity [Line Items]
Vesting period, year			3 years
Maximum [Member] \| Performance Shares [Member]
Stockholders Equity [Line Items]
Number of shares issued on performance			200.00%
Minimum [Member] \| Restricted Stock Units (RSUs) [Member]
Stockholders Equity [Line Items]
Vesting period, year			1 year
Minimum [Member] \| Performance Shares [Member]
Stockholders Equity [Line Items]
Number of shares issued on performance			0.00%
August 2, 2017, Stock Repurchase Program [Member]
Stockholders Equity [Line Items]
Cost of common stock repurchased				$ 75,000,000
Number of shares repurchased		0	0
Repurchase authorization program expiration date			Jul. 31, 2018
August 2, 2017, Stock Repurchase Program [Member] \| Maximum [Member]
Stockholders Equity [Line Items]
Common stock amount authorized under repurchase program					$ 100,000,000

Stockholders' Equity - Summary of Location of Equity-Based Compensation Expense on Statement of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total equity-based compensation expense	$ 11,327	$ 10,974	$ 33,723	$ 31,572
Selling, General and Administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total equity-based compensation expense	8,629	8,365	25,691	24,041
Cost of Sales [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total equity-based compensation expense	1,433	1,386	4,267	4,001
Research and Development [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total equity-based compensation expense	$ 1,265	$ 1,223	$ 3,765	$ 3,530

Stockholders' Equity - Summary of Stock Option Activity (Detail) - Non Qualified Stock Option [Member] $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2018 USD ($) $ / shares shares	Sep. 30, 2018 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Options Beginning Balance \| shares	4,784	4,830
Shares, Granted \| shares	5	482
Shares, Exercised \| shares	(1)	(435)
Shares, Forfeited \| shares		(89)
Shares, Options Ending Balance \| shares	4,788	4,788
Shares, Options vested Ending Balance \| shares	3,955	3,955
Shares, Options unvested Ending Balance \| shares	833	833
Weighted Average Option Exercise Price Per Share, Options Beginning Balance \| $ / shares	$ 15.30	$ 13.01
Weighted Average Option Exercise Price Per Share, Granted \| $ / shares	31.36	38.34
Weighted Average Option Exercise Price Per Share, Exercised \| $ / shares	27.80	11.47
Weighted Average Option Exercise Price Per Share, Forfeited \| $ / shares		34.09
Weighted Average Option Exercise Price Per Share, Options Ending Balance \| $ / shares	15.31	15.31
Weighted Average Option Exercise Price Per Share, Options vested Ending Balance \| $ / shares	10.79	10.79
Weighted Average Option Exercise Price Per Share, Options unvested Ending Balance \| $ / shares	$ 36.76	$ 36.76
Weighted Average Remaining Contractual Term in Years, Options outstanding	4 years	4 years
Weighted Average Remaining Contractual Term in Years, Options vested		3 years
Weighted Average Remaining Contractual Term in Years, Options unvested		8 years 9 months 18 days
Aggregate Intrinsic Value, Options outstanding as of September 30, 2018 \| $	$ 80,633	$ 80,633
Aggregate Intrinsic Value, Options vested as of September 30, 2018 \| $	80,151	80,151
Aggregate Intrinsic Value, Options unvested as of September 30, 2018 \| $	$ 482	$ 482

Stockholders' Equity - Summary of Exercise Price (Detail) shares in Thousands	9 Months Ended
	Sep. 30, 2018 $ / shares shares
$2.96 to $5.74 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices Minimum	$ 2.96
Range of Exercise Prices Maximum	$ 5.74
Options Outstanding Shares \| shares	2,502
Weighted Average Remaining Contractual Life	2 years 1 month 6 days
Weighted Average Exercise Price Per Share, Options Outstanding	$ 5.42
Options Exercisable Shares \| shares	2,502
Weighted Average Exercise Price Per Share, Options Exercisable	$ 5.42
$5.75 to $22.99 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices Minimum	5.75
Range of Exercise Prices Maximum	$ 22.99
Options Outstanding Shares \| shares	653
Weighted Average Remaining Contractual Life	1 year 7 months 6 days
Weighted Average Exercise Price Per Share, Options Outstanding	$ 8.58
Options Exercisable Shares \| shares	653
Weighted Average Exercise Price Per Share, Options Exercisable	$ 8.58
$23.00 to $42.32 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices Minimum	23.00
Range of Exercise Prices Maximum	$ 42.32
Options Outstanding Shares \| shares	1,633
Weighted Average Remaining Contractual Life	7 years 10 months 24 days
Weighted Average Exercise Price Per Share, Options Outstanding	$ 33.16
Options Exercisable Shares \| shares	800
Weighted Average Exercise Price Per Share, Options Exercisable	$ 29.41
$2.96 to $42.32 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices Minimum	2.96
Range of Exercise Prices Maximum	$ 42.32
Options Outstanding Shares \| shares	4,788
Weighted Average Remaining Contractual Life	4 years
Weighted Average Exercise Price Per Share, Options Outstanding	$ 15.31
Options Exercisable Shares \| shares	3,955
Weighted Average Exercise Price Per Share, Options Exercisable	$ 10.79

Stockholders' Equity - Summary of Weighted Average Assumptions Used to Estimate Fair Value of Stock Option (Detail) - Stock Options [Member] - $ / shares

3 Months Ended

9 Months Ended

Sep. 30, 2018

Sep. 30, 2017

^[1]

Sep. 30, 2018

Sep. 30, 2017

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Expected option term (in years)

6 years

0 years

6 years

Risk-free interest rate

2.80%

2.70%

2.00%

Expected volatility

35.00%

40.00%

Weighted average exercise price

$ 31.36

$ 38.34

$ 38.00

Weighted average fair value at grant date

$ 12.18

$ 14.83

$ 15.72

[1]	No stock options were granted during the three months ended September 30, 2017.

Stockholders' Equity - Summary of Weighted Average Assumptions Used to Estimate Fair Value of Stock Option (Parenthetical) (Detail)	3 Months Ended
	Sep. 30, 2017 shares
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted	0

Stockholders' Equity - Summary of RSU Activity (Detail) - Restricted Stock Units (RSUs) [Member] - $ / shares shares in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested share units, Beginning balance	2,155	2,279
Shares, Granted	2	1,122
Shares, Vested and shares issued	(8)	(1,081)
Shares, Forfeited	(61)	(232)
Non-vested share units, Ending balance	2,088	2,088
Weighted Average Grant Date Fair Value Per Share, Non-vested share units, Beginning balance	$ 35.43	$ 31.83
Weighted Average Grant Date Fair Value Per Share, Granted	31.36	37.97
Weighted Average Grant Date Fair Value Per Share, Vested and shares issued	34.31	30.80
Weighted Average Grant Date Fair Value Per Share, Forfeited	35.47	33.88
Weighted Average Grant Date Fair Value Per Share, Non-vested share units, Ending balance	$ 35.43	$ 35.43

Stockholders' Equity - Summary of PSU Activity (Detail) - Performance Shares [Member] - $ / shares shares in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested share units, Beginning balance	294	344
Shares, Granted	2	186
Shares, Vested and shares issued		(203)
Shares, Forfeited		(31)
Non-vested share units, Ending balance	296	296
Weighted Average Grant Date Fair Value Per Share, Non-vested share units, Beginning balance	$ 34.07	$ 26.75
Weighted Average Grant Date Fair Value Per Share, Granted	31.36	38.34
Weighted Average Grant Date Fair Value Per Share, Vested and shares issued		26.80
Weighted Average Grant Date Fair Value Per Share, Forfeited		26.27
Weighted Average Grant Date Fair Value Per Share, Non-vested share units, Ending balance	$ 34.05	$ 34.05