TTM (TTMI) 10-Q 7 Aug 19 2019 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jul. 01, 2019	Aug. 05, 2019
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jul. 1, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Trading Symbol	TTMI
Entity Registrant Name	TTM TECHNOLOGIES INC
Entity Central Index Key	0001116942
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		105,492,642
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity File Number	0-31285
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	91-1033443
Entity Address, Address Line One	200 East Sandpointe
Entity Address, Address Line Two	Suite 400
Entity Address, City or Town	Santa Ana
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92707
City Area Code	714
Local Phone Number	327-3000
Title of 12(b) Security	Common Stock
Security Exchange Name	NASDAQ
Document Quarterly Report	true
Document Transition Report	false
Former Address
Document Information [Line Items]
Entity Address, Address Line One	1665 Scenic Avenue
Entity Address, Address Line Two	Suite 250
Entity Address, City or Town	Costa Mesa
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92626

Consolidated Condensed Balance

Consolidated Condensed Balance Sheets - USD ($) $ in Thousands	Jul. 01, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 284,466	$ 256,360
Accounts receivable, net	482,740	523,165
Contract assets	261,071	287,741
Inventories	122,149	109,377
Prepaid expenses and other current assets	39,260	30,271
Total current assets	1,189,686	1,206,914
Property, plant and equipment, net	1,037,087	1,052,024
Operating lease right-of-use assets	25,625
Goodwill	767,045	767,045
Definite-lived intangibles, net	345,471	375,923
Deposits and other non-current assets	75,199	55,597
Assets, Total	3,440,113	3,457,503
Current liabilities:
Short-term debt, including current portion of long-term debt		30,000
Accounts payable	432,936	431,288
Contract liabilities	2,386	3,220
Accrued salaries, wages and benefits	81,490	94,950
Other	107,143	113,756
Total current liabilities	623,955	673,214
Long-term debt, net of discount and issuance costs	1,469,270	1,462,425
Operating lease liabilities	18,365
Other long-term liabilities	99,446	94,777
Total long-term liabilities	1,587,081	1,557,202
Commitments and contingencies (Note 14)
Equity:
Common stock, $0.001 par value; 300,000 shares authorized, 105,491 and 103,687 shares issued and outstanding at July 1, 2019 and December 31, 2018, respectively	105	104
Additional paid-in capital	805,421	797,895
Retained earnings	433,180	433,008
Accumulated other comprehensive loss	(9,629)	(3,920)
Total stockholders’ equity	1,229,077	1,227,087
Liabilities and Equity, Total	$ 3,440,113	$ 3,457,503

Consolidated Condensed Balanc_2

Consolidated Condensed Balance Sheets (Parenthetical) - $ / shares	Jul. 01, 2019	Dec. 31, 2018
Statement Of Financial Position [Abstract]
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	300,000,000	300,000,000
Common stock, shares issued	105,491,000	103,687,000
Common stock, shares outstanding	105,491,000	103,687,000

Consolidated Condensed Statemen

Consolidated Condensed Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2019	Jul. 02, 2018	Jul. 01, 2019	Jul. 02, 2018
Income Statement [Abstract]
Net sales	$ 633,038	$ 716,887	$ 1,253,238	$ 1,380,469
Cost of goods sold	548,423	600,747	1,079,938	1,175,651
Gross profit	84,615	116,140	173,300	204,818
Operating expenses:
Selling and marketing	17,867	18,619	36,768	36,247
General and administrative	38,637	46,298	74,105	81,486
Amortization of definite-lived intangibles	11,267	19,489	28,093	25,350
Total operating expenses	67,771	84,406	138,966	143,083
Operating income	16,844	31,734	34,334	61,735
Other income (expense):
Interest expense	(20,871)	(20,453)	(42,559)	(34,200)
Other, net	4,621	6,178	4,091	5,071
Total other expense, net	(16,250)	(14,275)	(38,468)	(29,129)
Income (loss) before income taxes	594	17,459	(4,134)	32,606
Income tax benefit	2,830	66,545	4,306	61,495
Net income	$ 3,424	$ 84,004	$ 172	$ 94,101
Earnings per share:
Basic earnings per share	$ 0.03	$ 0.81	$ 0	$ 0.91
Diluted earnings per share	$ 0.03	$ 0.65	$ 0	$ 0.75

Consolidated Condensed Statem_2

Consolidated Condensed Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2019	Jul. 02, 2018	Jul. 01, 2019	Jul. 02, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 3,424	$ 84,004	$ 172	$ 94,101
Other comprehensive loss, net of tax:
Foreign currency translation adjustments, net	(601)	(1,701)	29	(1,079)
Pension obligation adjustments, net			19
Net unrealized losses on cash flow hedges:
Unrealized loss on effective cash flow hedges during the period, net	(4,503)	(1,739)	(6,331)	(1,745)
Loss realized in the statement of operations	296	342	574	383
Net	(4,207)	(1,397)	(5,757)	(1,362)
Other comprehensive loss, net of tax	(4,808)	(3,098)	(5,709)	(2,441)
Comprehensive (loss) income, net of tax	$ (1,384)	$ 80,906	$ (5,537)	$ 91,660

Consolidated Condensed Statem_3

Consolidated Condensed Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income
Beginning balance at Jan. 01, 2018	$ 1,011,380	$ 102	$ 777,025	$ 230,850	$ 3,403
Beginning balance (in shares) at Jan. 01, 2018		101,820
New revenue standard adjustment	28,574			28,574
Net income (loss)	10,097			10,097
Other comprehensive income (loss)	657				657
Issuance of common stock for performance-based restricted stock units (in shares)		521
Issuance of common stock for restricted stock units		$ 1	(1)
Issuance of common stock for restricted stock units (in shares)		1,104
Stock-based compensation	3,622		3,622
Ending balance at Apr. 02, 2018	1,054,330	$ 103	780,646	269,521	4,060
Ending balance (in shares) at Apr. 02, 2018		103,445
Beginning balance at Jan. 01, 2018	1,011,380	$ 102	777,025	230,850	3,403
Beginning balance (in shares) at Jan. 01, 2018		101,820
Net income (loss)	94,101
Other comprehensive income (loss)	(2,441)
Ending balance at Jul. 02, 2018	1,141,293	$ 104	786,702	353,525	962
Ending balance (in shares) at Jul. 02, 2018		103,674
Beginning balance at Apr. 02, 2018	1,054,330	$ 103	780,646	269,521	4,060
Beginning balance (in shares) at Apr. 02, 2018		103,445
Net income (loss)	84,004			84,004
Other comprehensive income (loss)	(3,098)				(3,098)
Exercise of stock options	190		190
Exercise of stock options (in shares)		20
Issuance of common stock for restricted stock units		$ 1	(1)
Issuance of common stock for restricted stock units (in shares)		209
Stock-based compensation	5,867		5,867
Ending balance at Jul. 02, 2018	1,141,293	$ 104	786,702	353,525	962
Ending balance (in shares) at Jul. 02, 2018		103,674
Beginning balance at Dec. 31, 2018	1,227,087	$ 104	797,895	433,008	(3,920)
Beginning balance (in shares) at Dec. 31, 2018		103,687
Net income (loss)	(3,252)			(3,252)
Other comprehensive income (loss)	(901)				(901)
Redemption of convertible notes, net	(1)		(1)
Issuance of common stock for performance-based restricted stock units (in shares)		694
Issuance of common stock for restricted stock units		$ 1	(1)
Issuance of common stock for restricted stock units (in shares)		1,040
Stock-based compensation	3,926		3,926
Ending balance at Apr. 01, 2019	1,226,859	$ 105	801,819	429,756	(4,821)
Ending balance (in shares) at Apr. 01, 2019		105,421
Beginning balance at Dec. 31, 2018	1,227,087	$ 104	797,895	433,008	(3,920)
Beginning balance (in shares) at Dec. 31, 2018		103,687
Net income (loss)	172
Other comprehensive income (loss)	(5,709)				(5,709)
Ending balance at Jul. 01, 2019	1,229,077	$ 105	805,421	433,180	(9,629)
Ending balance (in shares) at Jul. 01, 2019		105,491
Beginning balance at Apr. 01, 2019	1,226,859	$ 105	801,819	429,756	(4,821)
Beginning balance (in shares) at Apr. 01, 2019		105,421
Net income (loss)	3,424			3,424
Other comprehensive income (loss)	(4,808)				(4,808)
Issuance of common stock for restricted stock units (in shares)		70
Stock-based compensation	3,602		3,602
Ending balance at Jul. 01, 2019	$ 1,229,077	$ 105	$ 805,421	$ 433,180	$ (9,629)
Ending balance (in shares) at Jul. 01, 2019		105,491

Consolidated Condensed Statem_4

Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jul. 01, 2019	Jul. 02, 2018
Cash flows from operating activities:
Net income	$ 172	$ 94,101
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of property, plant and equipment	82,837	80,073
Amortization of definite-lived intangible assets	30,452	25,350
Amortization of debt discount and issuance costs	7,313	6,358
Deferred income taxes	(2,228)	(64,769)
Stock-based compensation	7,528	9,489
Other	(8,785)	56
Changes in operating assets and liabilities, net of acquisition:
Accounts receivable, net	40,425	(17,056)
Contract assets	26,670	(16,478)
Inventories	(12,772)	5,685
Prepaid expenses and other current assets	(8,934)	356
Accounts payable	(10,659)	(33,778)
Contract liabilities	(834)	(98)
Accrued salaries, wages and benefits and other current liabilities	(28,138)	(47,911)
Net cash provided by operating activities	123,047	41,378
Cash flows from investing activities:
Acquisition, net of cash acquired		(596,396)
Purchase of property, plant and equipment and other assets	(69,099)	(81,338)
Proceeds from sale of property, plant and equipment and other assets	5,912	251
Net cash used in investing activities	(63,187)	(677,483)
Cash flows from financing activities:
Proceeds from incremental long-term borrowings		600,000
Repayment of long-term debt borrowing	(30,000)	(3,718)
Repayment of assumed long-term debt in acquisition		(178,604)
Proceeds from borrowings of revolving loan		23,000
Payment of debt issuance costs	(1,532)	(7,653)
Payment of original issue discount		(1,500)
Proceeds from exercise of stock options		192
Redemption of convertible notes	(10)
Net cash (used in) provided by financing activities	(31,542)	431,717
Effect of foreign currency exchange rates on cash and cash equivalents	(212)	(838)
Net increase (decrease) in cash and cash equivalents	28,106	(205,226)
Cash and cash equivalents at beginning of period	256,360	409,326
Cash and cash equivalents at end of period	284,466	204,100
Supplemental cash flow information:
Cash paid, net for interest	39,739	28,896
Cash paid, net for income taxes	13,119	18,557
Noncash transactions:
Property, plant and equipment recorded in accounts payable	$ 61,475	$ 54,369

Nature of Operations and Basis

Nature of Operations and Basis of Presentation	6 Months Ended
	Jul. 01, 2019
Accounting Policies [Abstract]
Nature of Operations and Basis of Presentation	(1) Nature of Operations and Basis of Presentation TTM Technologies, Inc. (the Company or TTM) is a leading global printed circuit board (PCB) manufacturer, focusing on quick-turn and volume production of technologically complex PCBs, backplane assemblies and electro-mechanical solutions (E-M Solutions) as well as a global designer and manufacturer of radio-frequency (RF) and microwave components and assemblies. The Company provides time-to-market and volume production of advanced technology products and offers a one-stop design, engineering and manufacturing solution to customers from engineering support to prototype development through final mass production. This one-stop design and manufacturing solution enables the Company to align technology developments with the diverse needs of the Company’s customers and to enable them to reduce the time required to develop new products and bring them to market. The Company serves a diversified customer base in various markets throughout the world, including aerospace and defense, automotive components, smartphones and touchscreen tablets, high-end computing, medical, industrial and instrumentation related products, as well as networking/communications infrastructure products. The Company’s customers include both original equipment manufacturers (OEMs) and electronic manufacturing services (EMS) providers. The accompanying consolidated condensed financial statements have been prepared by the Company, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (SEC). Certain information and disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (U.S. GAAP) have been condensed or omitted pursuant to such rules and regulations. These consolidated condensed financial statements reflect all adjustments (consisting only of normal recurring adjustments) which, in the opinion of management, are necessary to present fairly the financial position, the results of operations and cash flows of the Company for the periods presented. It is suggested that these consolidated condensed financial statements be read in conjunction with the consolidated financial statements and the notes thereto included in the Company’s most recent Annual Report on Form 10-K. The results of operations for the interim periods are not necessarily indicative of the results to be expected for the full year. The preparation of financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the Company’s consolidated condensed financial statements and accompanying notes. Actual results could differ materially from those estimates. The Company uses a 13-week fiscal quarter accounting period with the fourth quarter ending on the Monday nearest December 31. Reclassifications Certain amounts in the prior period consolidated condensed financial statement have been reclassified to conform to the presentation of the current period consolidated condensed financial statement. These reclassifications had no effect on the previously reported net income. An adjustment has been made to combine the statutory surplus reserve with retained earnings on the consolidated condensed balance sheet and the consolidated condensed statement of stockholders’ equity. Recently Adopted and Issued Accounting Standards Recently Adopted Accounting Standards In February 2016, the Financial Accounting Standards Board (FASB) issued ASU 2016-02, Leases (Topic 842) In July 2018, the FASB issued ASU 2018-11, Leases (Topic 842): Targeted Improvements The Company adopted the new lease standard as of January 1, 2019 and utilized the retrospective cumulative effect adjustment transition method with a cumulative effect adjustment being recorded as of the adoption date. Therefore, comparative information has not been adjusted and continues to be reported under previous U.S. GAAP guidance for the consolidated condensed balance sheet as of December 31, 2018 and the consolidated condensed statement of operations for the quarter and two quarters ended July 2, 2018. The Company implemented internal controls and key system functionality to enable the preparation of financial information on adoption. The Company elected certain available practical expedients including the package of practical expedients permitted under the transition guidance within the new standard, which among other things, allowed the Company to carry forward the historical lease classification. Additionally, the Company elected an accounting policy to not record ROU assets and lease liabilities for leases with an initial term of twelve months or less on its consolidated condensed balance sheet. The cumulative effect of the changes made to the Company’s January 1, 2019 consolidated condensed balance sheet for the adoption of the new lease standard was as follows: Balance as of December 31, 2018 New Lease Standard Adjustment Balance as of January 1, 2019 (In thousands) Assets Operating lease right-of-use assets $ — $ 16,894 $ 16,894 Deposits and other non-current assets 55,597 (548 ) 55,049 Liabilities Other current liabilities 113,756 2,545 116,301 Operating lease liabilities — 14,356 14,356 Other long-term liabilities 94,777 (555 ) 94,222 The adoption of the new accounting guidance did not have a material impact to the consolidated condensed statement of operations for the quarter and two quarters ended July 1, 2019, or the consolidated condensed statement of cash flows for the two quarters ended July 1, 2019. See Note 3 for further details. In June 2018, the FASB issued ASU 2018-07, Compensation-Stock Compensation (Topic 718): Improvements to Nonemployee Share-based Payments In August 2017, the FASB issued ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities Recently Issued Accounting Standards Not Yet Adopted In August 2018, the FASB issued ASU 2018-14, Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20)—Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jul. 01, 2019
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	(2) Summary of Significant Accounting Policies Leases The Company determines if an arrangement is a lease at inception. Operating leases are included in operating lease ROU assets, other current liabilities, and operating lease liabilities on the consolidated condensed balance sheets. ROU assets represent the Company’s right to use an underlying asset for the lease term and lease liabilities represent the Company’s obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. As most of the Company’s leases do not provide an implicit rate, the Company uses incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. The operating lease ROU asset also includes any lease payments made and excludes lease incentives. Lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. Lease expense for lease payments is recognized on a straight-line basis over the lease term. The Company has lease agreements with lease and non-lease components and accounts for the lease and non-lease components as a single lease component.

Leases

Leases	6 Months Ended
	Jul. 01, 2019
Leases [Abstract]
Leases	(3) Leases The Company leases some of its manufacturing and assembly plants, sales offices and equipment under non-cancellable operating leases that expire at various dates through 2049. The majority of the Company’s lease arrangements are comprised of fixed payments and a limited number of leases consist of variable payments based on equipment usage. Certain leases contain renewal provisions at the Company’s option. Most of the leases require the Company to pay for certain other costs such as property taxes and maintenance. Certain leases also contain rent escalation clauses (step rents) that require additional rental amounts in the later years of the term. Rent expense for leases with step rents is recognized on a straight-line basis over the minimum lease term. The lease agreements do not contain any material residual value guarantees or material restrictive covenants. The components of lease expense were as follows: Quarter Ended July 1, 2019 Two Quarters Ended July 1, 2019 (In thousands) Operating lease cost $ 2,293 $ 4,524 Variable lease cost 1,811 2,002 Short-term lease cost 230 381 Supplemental cash flow information related to leases was as follows: Two Quarters Ended July 1, 2019 (In thousands) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 4,410 Right-of-use assets obtained in exchange for new lease obligations: Operating leases 12,860 Supplemental balance sheet information related to leases was as follows: As of July 1, 2019 (In thousands) Operating lease right-of-use assets $ 25,625 Other current liabilities 7,376 Operating lease liabilities 18,365 Total operating lease liabilities $ 25,741 Weighted average remaining lease term 4.6 years Weighted average discount rate 3.97 % Maturities of operating lease liabilities were as follows (1) (In thousands) Less than one year $ 8,182 1 - 2 years 6,964 2 - 3 years 4,864 3 - 4 years 2,449 4 - 5 years 1,925 Thereafter 3,886 Total lease payments 28,270 Less imputed interest (2,529 ) Total $ 25,741 (1) Excludes $851 of legally binding minimum lease payments for leases signed but not yet commenced. Operating Leases Pre-Topic 842 Adoption The following is a schedule of future minimum lease payments as of December 31, 2018: Operating Leases (In thousands) 2019 $ 7,282 2020 4,701 2021 3,406 2022 2,408 2023 2,172 Thereafter 4,172 Total minimum lease payments $ 24,141

Revenues

Revenues	6 Months Ended
	Jul. 01, 2019
Revenue From Contract With Customer [Abstract]
Revenues	(4) Revenues As of July 1, 2019, the aggregate amount of the transaction price allocated to remaining performance obligations for long-term contracts was $20,097. The Company expects to recognize revenue on approximately 94% of the remaining performance obligations for the Company’s long-term contracts over the next twelve months with the remaining amount recognized thereafter. The remaining performance obligations for the Company’s short-term contracts are expected to be recognized within one year or less. Revenue from products and services transferred to customers over time and at a point in time accounted for 97% and 3%, July 1, 2019. The following tables represent a disaggregation of revenue by principal end markets with the reportable segments: Quarter Ended July 1, 2019 Quarter Ended July 2, 2018 PCB E-M Solutions Total PCB E-M Solutions Total End Markets (In thousands) Aerospace and Defense $ 175,301 $ 362 $ 175,663 $ 162,951 $ 455 $ 163,406 Automotive 79,048 23,993 103,041 110,607 25,854 136,461 Cellular Phone 40,094 — 40,094 55,393 — 55,393 Computing/Storage/Peripherals 95,127 — 95,127 109,633 568 110,201 Medical/Industrial/Instrumentation 87,471 9,641 97,112 96,704 9,856 106,560 Networking/Communications 79,937 25,926 105,863 99,353 24,602 123,955 Other 16,143 (5 ) 16,138 20,404 507 20,911 Total $ 573,121 $ 59,917 $ 633,038 $ 655,045 $ 61,842 $ 716,887 Two Quarters Ended July 1, 2019 Two Quarters Ended July 2, 2018 PCB E-M Solutions Total PCB E-M Solutions Total End Markets (In thousands) Aerospace and Defense $ 340,369 $ 366 $ 340,735 $ 285,627 $ 544 $ 286,171 Automotive 164,861 43,758 208,619 226,899 45,164 272,063 Cellular Phone 83,178 — 83,178 160,253 — 160,253 Computing/Storage/Peripherals 176,019 189 176,208 198,175 873 199,048 Medical/Industrial/Instrumentation 175,141 17,808 192,949 190,338 17,379 207,717 Networking/Communications 168,000 49,265 217,265 181,290 44,075 225,365 Other 34,375 (91 ) 34,284 28,894 958 29,852 Total $ 1,141,943 $ 111,295 $ 1,253,238 $ 1,271,476 $ 108,993 $ 1,380,469

Composition of Certain Consolid

Composition of Certain Consolidated Condensed Financial Statement Captions	6 Months Ended
	Jul. 01, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Composition of Certain Consolidated Condensed Financial Statement Captions	(5) Composition of Certain Consolidated Condensed Financial Statement Captions As of As of July 1, 2019 December 31, 2018 (In thousands) Inventories: Raw materials $ 102,974 $ 97,600 Work-in-process 13,083 10,299 Finished goods 6,092 1,478 $ 122,149 $ 109,377 Property, plant and equipment, net: Land and land use rights $ 74,850 $ 75,431 Buildings and improvements 538,003 534,122 Machinery and equipment 1,398,905 1,357,035 Construction-in-progress, furniture and fixtures and other 57,946 42,713 2,069,704 2,009,301 Less: Accumulated depreciation (1,032,617 ) (957,277 ) $ 1,037,087 $ 1,052,024

Goodwill

Goodwill	6 Months Ended
	Jul. 01, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill	(6) Goodwill As of July 1, 2019 and December 31, 2018, goodwill was as follows: Total (In thousands) Balance as of July 1, 2019 and December 31, 2018 Goodwill $ 938,445 Accumulated impairment losses (171,400 ) $ 767,045 All goodwill relates to the Company’s PCB reportable segment. The Company evaluates its goodwill on an annual basis during its fourth fiscal quarter and whenever events or changes in circumstances — such as significant adverse changes in business climate or operating results, changes in management strategy, coupled with a decline in the market price of its stock and market capitalization — indicate that there may be a potential impairment. During the quarter, the Company evaluated for triggering events and management did not believe that goodwill was impaired as of July 1, 2019.

Definite-lived Intangibles

Definite-lived Intangibles	6 Months Ended
	Jul. 01, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Definite-lived Intangibles	(7) Definite-lived Intangibles As of July 1, 2019 and December 31, 2018, the components of definite-lived intangibles were as follows: Gross Amount Accumulated Amortization Net Carrying Amount Weighted Average Amortization Period (In thousands) (In years) July 1, 2019 Customer relationships $ 415,000 $ (103,324 ) $ 311,676 10.7 Technology 39,500 (5,705 ) 33,795 9.4 $ 454,500 $ (109,029 ) $ 345,471 December 31, 2018 Customer relationships $ 203,634 $ (123,522 ) $ 80,112 8.1 Technology 3,000 (3,000 ) — 3.0 Acquired intangibles from acquisition Customer relationships 267,500 (15,561 ) 251,939 12.2 Developed technology 39,500 (3,345 ) 36,155 9.4 Backlog 29,000 (21,283 ) 7,717 0.9 $ 542,634 $ (166,711 ) $ 375,923 Definite-lived intangibles are generally amortized using the straight-line method of amortization over the estimated useful life, with the exception of certain customer relationship intangibles, which are amortized using an accelerated method of amortization based on estimated cash flows. Amortization expense was $12,447 and $19,489 for the quarters ended July 1, 2019 and July 2, 2018, respectively, and $30,452 and $25,350 for the two quarters ended July 1, 2019 and July 2, 2018, respectively. For the quarter and two quarters ended July 1, 2019, $1,180 and $2,359, respectively, of amortization expense is included in cost of goods sold. Estimated aggregate amortization for definite-lived intangible assets for the next five years and thereafter is as follows: (In thousands) Remaining 2019 $ 22,709 2020 45,419 2021 42,108 2022 39,002 2023 36,290 Thereafter 159,943 $ 345,471

Long-term Debt and Letters of C

Long-term Debt and Letters of Credit	6 Months Ended
	Jul. 01, 2019
Debt Disclosure [Abstract]
Long-term Debt and Letters of Credit	(8) Long-term Debt and Letters of Credit The following table summarizes the long-term debt of the Company as of July 1, 2019 and December 31, 2018: Interest Rate as of July 1, 2019 Principal Outstanding as of July 1, 2019 Interest Rate as of December 31, 2018 Principal Outstanding as of December 31, 2018 (In thousands, except interest rates) Term Loan due September 2024 4.89 % $ 805,879 5.00 % $ 835,879 Senior Notes due October 2025 5.63 375,000 5.63 375,000 Convertible Senior Notes due December 2020 1.75 249,975 1.75 249,985 U.S. ABL Revolving Loan due June 2024 3.76 40,000 4.00 40,000 Asia ABL Revolving Loan due June 2024 3.79 30,000 3.90 30,000 1,500,854 1,530,864 Less: Long-term debt unamortized discount (17,090 ) (22,167 ) Long-term debt unamortized debt issuance costs (14,494 ) (16,272 ) 1,469,270 1,492,425 Less: current maturities — (30,000 ) Long-term debt, less current maturities $ 1,469,270 $ 1,462,425 Term Loan Facility On April 18, 2018, the Company closed its $600,000 commitment of incremental loans concurrent with the completion of its acquisition of Anaren. At issuance, these incremental loans increased the Company’s existing balance of its Term Loan Facility due 2024 from $348,250 to $948,250. The Term Loan Facility had an outstanding balance of $805,879 as of July 1, 2019 , 2019, the Based on certain parameters defined in the Term Loan Facility, including a First Lien Leverage Ratio, the Company may be required to make an additional principal payment on an annual basis beginning after fiscal year 2018, if the Company’s First Lien Leverage Ratio is greater than 2.0. For 2019, the Company is not required to make an additional principal payment as its First Lien Leverage Ratio was less than 2.0. Any remaining outstanding balance under the Term Loan Facility is due at the maturity date of September 28, 2024. Borrowings under the Term Loan Facility are subject to certain affirmative and negative covenants, including limitations on indebtedness, corporate transactions, investments and dispositions, and share payments. Senior Notes The $375,000 of Senior Notes, which is included in long-term debt, bear interest at a rate of 5.63% per annum. Interest is payable semiannually in arrears on April 1 and October 1 of each year beginning April 1, 2018. The Senior Notes will mature on October 1, 2025. Borrowings under the Senior Notes are subject to certain affirmative and negative covenants, including limitations on indebtedness, corporate transactions, investments, dispositions, and share payments. Convertible Senior Notes due 2020 The Company maintains 1.75% Convertible Senior Notes in the amount of $249,975 due December 15, 2020. The Convertible Senior Notes bear interest at a rate of 1.75% per annum. Interest is payable semiannually in arrears on June 15 and December 15 of each year. The Convertible Senior Notes are senior unsecured obligations and would rank equally to the Company’s future unsecured senior indebtedness and are senior in right of payment to any of the Company’s future subordinated indebtedness. As of July 1, 2019 and December 31, 2018, the following summarizes the equity components of the Convertible Senior Notes included in additional paid-in capital: As of July 1, 2019 As of December 31, 2018 Embedded conversion option — Convertible Senior Notes Embedded conversion option — Convertible Senior Notes Issuance Costs Total Embedded conversion option — Convertible Senior Notes Embedded conversion option — Convertible Senior Notes Issuance Costs Total (In thousands) Convertible Senior Notes due 2020 $ 60,213 $ (1,916 ) $ 58,297 $ 60,216 $ (1,916 ) $ 58,300 The components of interest expense resulting from the Convertible Senior Notes for the quarter and two quarters ended July 1, 2019 and July 2 , 2018 Quarter Ended Two Quarters Ended July 1, July 2, July 1, July 2, 2019 2018 2019 2018 (In thousands) Contractual coupon interest $ 1,093 $ 1,093 $ 2,187 $ 2,187 Amortization of debt discount $ 2,418 $ 2,267 $ 4,797 $ 4,497 Amortization of debt issuance costs $ 243 $ 227 $ 481 $ 451 Asset-Based Lending Agreements During June 2019, the Company amended its U.S. Asset-Based Lending Credit Agreement (U.S. ABL) and its Asia Asset-Based Lending Credit Agreement (Asia ABL) (collectively the ABL Revolving Loans). The U.S. ABL credit facility was amended to extend its maturity to June 2024, decrease the size of the facility to $150,000 and add a $100,000 incremental facility. The Asia ABL credit facility was amended to extend the maturity to June 2024 and add a $50,000 incremental facility. The U.S. ABL consists of two tranches comprised of a revolving credit facility for up to $150,000 and a letter of credit facility for up to $50,000, provided that at no time may amounts outstanding under the tranches exceed in aggregate $150,000 or the applicable borrowing base, which is a percentage of the principal amount of Eligible Accounts, as defined in the U.S. ABL agreement. Borrowings under the U.S. ABL bear interest at either a floating rate of LIBOR plus a margin of 138 basis points or an alternate base rate (defined as the greater of the prime rate, the New York Fed bank rate plus 0.5% or LIBOR plus 1.0%) subject to a 1.0% floor, plus an applicable margin of 38 basis points, at the Company’s option. As of July 1, 2019, the interest rate on the outstanding borrowings under the U.S. ABL was 3.76%. The applicable margin can vary based on the remaining availability of the facility, from 125 to 150 basis points for LIBOR-based loans and from 25 to 50 basis points for JP Morgan Chase Bank’s prime rate-based loans. Other than availability and an event of default, there are no other provisions for the interest margin to increase. The U.S. ABL will mature on June 3, 2024. Loans made under the U.S. ABL are secured first by all of the Company’s domestic cash, receivables and certain inventories as well as by a second position against a significant amount of the domestic assets of the Company and a pledge of 65% of the voting stock of the Company’s first tier foreign subsidiaries and are structurally senior to the Company’s Senior Notes and Convertible Senior Notes. See Senior Notes and Convertible Senior Notes above. As of July 1, 2019, $40,000 of the U.S. ABL was outstanding and classified as long-term debt, which is consistent with its maturity date. The Asia ABL consists of two tranches comprised of a revolving credit facility for up to $150,000 and a letter of credit facility for up to $100,000, provided that at no time may amounts outstanding under both tranches exceed in aggregate $150,000 or the applicable borrowing base, which is a percentage of the principal amount of Eligible Accounts, as defined in the Asia ABL agreement. Borrowings under the Asia ABL bear interest at a floating rate of LIBOR plus 140 basis points. As of July 1, 2019, the interest rate on the outstanding borrowings under the Asia ABL was 3.79%. There is no provision, other than an event of default, for the interest margin to increase. The Asia ABL will mature on June 4, 2024. Loans made under the Asia ABL are secured by a portion of the Company’s Asia Pacific cash and receivables and are structurally senior to the Company’s domestic obligations, including the Senior Notes and Convertible Senior Notes. See Senior Notes and Convertible Senior Notes above. As of July 1, 2019, $30,000 of the Asia ABL was outstanding and classified as long-term debt, which is consistent with its maturity date. The Company has up to $50,000 and $100,000 Letters of Credit Facilities under the U.S. ABL and the Asia ABL, respectively. As of July 1, 2019, letters of credit in the amount of $15,287 were outstanding under the U.S. ABL and $22,718 were outstanding under the Asia ABL with various expiration dates through May 2020. Available borrowing capacity under the U.S. ABL and the Asia ABL was $94,713 and $97,282, respectively, which considers letters of credit outstanding as of July 1, 2019. The Company is required to pay a commitment fee of 0.25% per annum on any unused portion of the U.S. ABL and 0.28% per annum on any unused portion of the Asia ABL. The Company incurred total commitment fees related to unused borrowing availability of $210 and $247 for the quarters ended July 1, 2019 and July 2 , 2018 Other Credit Facility Additionally, the Company is party to a revolving loan credit facility (Chinese Revolver) with a lender in China. Under this arrangement, the lender has made available to the Company approximately $29,070 in unsecured borrowing with all terms of the borrowing to be negotiated at the time the Chinese Revolver is drawn upon. There are no commitment fees on the unused portion of the Chinese Revolver. In July 2019, the expiration of the Chinese Revolver was extended to July 2020. As of July 1, 2019, the Chinese Revolver had not been drawn upon. Debt Issuance and Debt Discount As of July 1 , 2019 As of July 1, 2019 As of December 31, 2018 Debt Issuance Costs Debt Discount Effective Interest Rate Debt Issuance Costs Debt Discount Effective Interest Rate (In thousands, except interest rates) Term Loan due September 2024 $ 7,303 $ 2,210 4.66 % $ 8,229 $ 2,489 4.66 % Senior Notes due October 2025 5,700 — 5.92 6,071 — 5.92 Convertible Senior Notes 1,491 14,880 6.48 1,972 19,678 6.48 $ 14,494 $ 17,090 $ 16,272 $ 22,167 The above debt discount and debt issuance costs are recorded as a reduction of the debt and are amortized into interest expense using an effective interest rate over the duration of the debt. Remaining unamortized debt issuance costs for the ABL Revolving Loans of $2,741 and $1,420 as of July 1 , 2019 As of July 1 , 2019

Income Taxes

Income Taxes	6 Months Ended
	Jul. 01, 2019
Income Tax Disclosure [Abstract]
Income Taxes	(9) Income Taxes The Company’s effective tax rate is impacted by tax rates in China and Hong Kong, the U.S. federal income tax rate, apportioned state income tax rates, generation of other credits and deductions available to the Company as well as changes in valuation allowances and certain non-deductible items. During the quarter and two quarters ended July 1, 2019, the Company’s effective tax rate was impacted by a net discrete benefit of $2,946 and $3,288, respectively. This is related mainly to release of uncertain tax positions due to the expiration of the statute of limitations in foreign jurisdictions netted against accrued interest expense on existing uncertain tax positions. Additionally, no tax benefit was recorded on the losses incurred in certain foreign jurisdictions as a result of corresponding increases in the valuation allowances in these jurisdictions. The Company has various foreign subsidiaries formed or acquired to conduct or support its business outside the United States. The Company expects its earnings attributable to most foreign subsidiaries may be repatriated back to the U.S. and so a deferred tax liability has been recorded for foreign withholding and the estimated federal/state tax impact. For those other companies with earnings currently being reinvested outside of the U.S., no deferred tax liabilities on undistributed earnings are recorded.

Financial Instruments

Financial Instruments	6 Months Ended
	Jul. 01, 2019
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Financial Instruments	(10) Financial Instruments Derivatives Interest Rate Swaps The Company’s business is exposed to interest rate risk resulting from fluctuations in interest rates on certain LIBOR-based variable rate debt. Increases in interest rates would increase interest expenses relating to the outstanding variable rate borrowings and increase the cost of debt. Fluctuations in interest rates can also lead to significant fluctuations in the fair value of the debt obligations. On May 15, 2018, the Company entered into a four-year pay-fixed, receive floating (1-month LIBOR), interest rate swap arrangement with a notional amount of $400,000 for the period beginning June 1, 2018 and ending on June 1, 2022. Under the terms of the interest rate swap, the Company pays a fixed rate of 2.84% against the first interest payments of a portion of its LIBOR-based debt and receives floating 1-month LIBOR during the swap period. At inception, the Company designated the interest rate swap as a cash flow hedge and the fair value of the interest rate swap was zero. As of July 1, 2019, the fair value of the interest rate swap was recorded as a liability in the amount of $12,693 and included as a component of other long-term liabilities. The change in the fair value of the interest rate swap is recorded as a component of accumulated other comprehensive loss, net of tax. No ineffectiveness was recognized for the quarter and two quarters ended July 1, 2019 and July 2, 2018. The interest rate swap increased interest expense by $367 and $303 for the quarters ended July 1, 2019 and July 2, 2018, respectively, and $706 and $303 for the two quarters ended July 1, 2019 and July 2, 2018, respectively. Foreign Exchange Contracts The Company enters into foreign currency forward contracts to mitigate the impact of changes in foreign currency exchange rates and to reduce the volatility of purchases and other obligations generated in currencies other than its functional currencies. The Company’s foreign subsidiaries may at times purchase forward exchange contracts to manage their foreign currency risks in relation to certain purchases of machinery denominated in foreign currencies other than the Company’s functional currencies. The notional amount of the foreign exchange contracts as of July 1, 2019 and December 31, 2018 was approximately $1,608 and $4,313, respectively. The Company has designated certain of these foreign exchange contracts as cash flow hedges. The fair values of derivative instruments in the consolidated condensed balance sheets are as follows: Asset / (Liability) Fair Value Balance Sheet Location July 1, 2019 December 31, 2018 (In thousands) Cash flow derivative instruments designated as hedges: Foreign exchange contracts Prepaid expenses and other current assets $ 40 $ — Interest rate swap Other long-term liabilities (12,693 ) (4,735 ) Cash flow derivative instruments not designated as hedges: Foreign exchange contracts Other current liabilities — (139 ) The following table provides information about the amounts recorded in accumulated other comprehensive loss related to derivatives designated as cash flow hedges, as well as the amounts recorded in each caption in the consolidated condensed statements of operations when derivative amounts are reclassified out of accumulated other comprehensive loss for the quarter and two quarters ended July 1, 2019 and July 2, 2018: Quarter Ended July 1, 2019 Quarter Ended July 2, 2018 Financial Statement Caption Loss Recognized in Other Comprehensive Income Loss Reclassified into Income Loss Recognized in Other Comprehensive Income Loss Reclassified into Income (In thousands) Cash flow hedge: Interest rate swap Interest expense $ (6,077 ) $ (367 ) $ (1,719 ) $ (303 ) Foreign currency forward Depreciation expense (5 ) (39 ) (20 ) (39 ) Two Quarters Ended July 1, 2019 Two Quarters Ended July 2, 2018 Financial Statement Caption Loss Recognized in Other Comprehensive Income Loss Reclassified into Income Loss Recognized in Other Comprehensive Income Loss Reclassified into Income (In thousands) Cash flow hedge: Interest rate swap Interest expense $ (8,663 ) $ (706 ) $ (1,719 ) $ (303 ) Foreign currency forward Depreciation expense (5 ) (78 ) (26 ) (80 ) The following table provides a summary of the activity associated with the designated cash flow hedges reflected in accumulated other comprehensive loss for the two quarters ended July 1, 2019 and July 2, 2018: Two Quarters Ended July 1, July 2, 2019 2018 (In thousands) Beginning balance, net of tax $ (4,214 ) $ (742 ) Changes in fair value loss, net of tax (6,331 ) (1,745 ) Reclassification to earnings 574 383 Ending balance, net of tax $ (9,971 ) $ (2,104 ) Based on the current yield curve, the Company expects that losses of approximately $2,956 of the accumulated other comprehensive loss will be reclassified into the statement of operations, net of tax, in the next twelve months. The net gain (loss) recognized in other, net in the consolidated condensed statements of operations on derivative instruments not designated as hedges is as follows: Quarter Ended Two Quarters Ended July 1, July 2, July 1, July 2, 2019 2018 2019 2018 (In thousands) Derivative instruments not designated as hedges: Foreign exchange contracts $ 45 $ (324 ) $ 49 $ 103

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	6 Months Ended
	Jul. 01, 2019
Equity [Abstract]
Accumulated Other Comprehensive Loss	(11) Accumulated Other Comprehensive Loss The following provides a summary of the components of accumulated other comprehensive loss, net of tax, as of July 1, 2019 and December 31, 2018: Foreign Currency Translation Pension Obligation Gains (Losses) on Cash Flow Hedges Total (In thousands) Ending balance as of December 31, 2018 $ 1,578 $ (1,284 ) $ (4,214 ) $ (3,920 ) Other comprehensive loss before reclassifications 29 19 (6,331 ) (6,283 ) Amounts reclassified from accumulated other comprehensive income — — 574 574 Other comprehensive loss 29 19 (5,757 ) (5,709 ) Ending balance as of July 1, 2019 $ 1,607 $ (1,265 ) $ (9,971 ) $ (9,629 )

Significant Customers and Conce

Significant Customers and Concentration of Credit Risk	6 Months Ended
	Jul. 01, 2019
Risks And Uncertainties [Abstract]
Significant Customers and Concentration of Credit Risk	(12) Significant Customers and Concentration of Credit Risk In the normal course of business, the Company extends credit to its customers. The Company performs ongoing credit evaluations of customers, does not require collateral, and considers the credit risk profile of the entity from which the receivable is due in further evaluating collection risk. The Company’s customers include both OEMs and EMS companies. The Company’s OEM customers often direct a significant portion of their purchases through EMS companies. While the Company’s customers include both OEM and EMS providers, the Company measures customer concentration based on OEM companies, as they are the ultimate end customers. For the quarter ended July 1, 2019, one customer accounted for approximately 10% of the Company’s net sales. There were no customers that accounted for 10% or more of net sales for the two quarters ended July 1, 2019. There were no customers that accounted for 10% or more of net sales for the quarter ended July 2, 2018. For the two quarters ended July 2, 2018, one customer accounted for approximately 12% of the Company’s net sales. There were no other customers that accounted for 10% or more of net sales for the quarter and two quarters ended July 1, 2019 and July 2 , 2018

Fair Value Measures

Fair Value Measures	6 Months Ended
	Jul. 01, 2019
Fair Value Disclosures [Abstract]
Fair Value Measures	(13) Fair Value Measures The Company measures at fair value its financial and non-financial assets by using a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date, essentially an exit price, based on the highest and best use of the asset or liability. The carrying amount and estimated fair value of the Company’s financial instruments as of July 1, 2019 and December 31, 2018 were as follows: As of As of July 1, 2019 December 31, 2018 Carrying Amount Fair Value Carrying Amount Fair Value (In thousands) Derivative liabilities, current $ — $ — $ 139 $ 139 Derivative liabilities, non-current 12,693 12,693 4,735 4,735 Term Loan due September 2024 796,366 798,828 825,161 782,592 Senior Notes due October 2025 369,300 369,274 368,929 350,880 Convertible Senior Notes 233,604 293,571 228,335 290,858 ABL Revolving Loans 70,000 70,000 70,000 70,000 The fair value of the derivative instruments was determined using pricing models developed based on the LIBOR swap rate, foreign currency exchange rates, and other observable market data, including quoted market prices, as appropriate using Level 2 inputs. The values were adjusted to reflect non-performance risk of both the counterparty and the Company, as necessary. The fair value of the long-term debt was estimated based on quoted market prices or discounting the debt over its life using current market rates for similar debt as of July The fair value of the Convertible Senior Notes was estimated based on quoted market prices of the securities on an active exchange, which are considered Level 2 inputs. As of July 1, 2019 and December 31, 2018, the Company’s other financial instruments also included cash and cash equivalents, accounts receivable, and accounts payable. Due to short-term maturities, the carrying amount of these instruments approximates fair value. The Company’s cash and cash equivalents as of July 1, 2019 consisted of $79,661 held in the U.S., with the remaining $204,805 held by foreign subsidiaries. The majority of the Company’s non-financial assets and liabilities, which include goodwill, intangible assets, inventories, and property, plant and equipment, are not required to be carried at fair value on a recurring basis. However, if certain triggering events occur (or are tested at least annually in the case of goodwill) such that a non-financial instrument is required to be evaluated for impairment, based upon a comparison of the non-financial instrument’s fair value to its carrying value, an impairment is recorded to reduce the carrying value to the fair value, if the carrying value exceeds the fair value.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jul. 01, 2019
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	(14) Commitments and Contingencies Legal Matters The Company is subject to various legal matters, which it considers normal for its business activities. While the Company currently believes that the amount of any reasonably possible loss for known matters would not be material to the Company’s financial condition, the outcome of these actions is inherently difficult to predict. In the event of an adverse outcome, the ultimate potential loss could have a material adverse effect on the Company’s financial condition or results of operations in a particular period. The Company has accrued amounts for its loss contingencies which are probable and estimable as of July 1, 2019 and December 31, 2018. However, these amounts are not material to the consolidated condensed financial statements of the Company.

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jul. 01, 2019
Earnings Per Share [Abstract]
Earnings Per Share	(15) Earnings Per Share The following is a reconciliation of the numerator and denominator used to calculate basic earnings per share and diluted earnings per share for the quarter and two quarters ended July 1, 2019 and July 2, 2018: Quarter Ended Two Quarters Ended July 1, 2019 July 2, 2018 July 1, 2019 July 2, 2018 (In thousands, except per share amounts) Basic earnings: Basic earnings $ 3,424 $ 84,004 $ 172 $ 94,101 Diluted earnings: Net income $ 3,424 $ 84,004 $ 172 $ 94,101 Interest expense from Convertible Senior Notes, net of tax — 3,587 — 7,135 Diluted earnings $ 3,424 $ 87,591 $ 172 $ 101,236 Basic weighted average shares 105,470 103,553 104,893 103,030 Dilutive effect of performance-based restricted stock units, restricted stock units and stock options 637 1,376 967 1,603 Dilutive effect of outstanding warrants — 3,854 — 3,517 Dilutive effect of assumed conversion of Convertible Senior Notes outstanding — 25,938 — 25,938 Diluted shares 106,107 134,721 105,860 134,088 Earnings per share: Basic $ 0.03 $ 0.81 $ 0.00 $ 0.91 Diluted $ 0.03 $ 0.65 $ 0.00 $ 0.75 Performance-based restricted stock units (PRUs), restricted stock units (RSUs), and stock options to purchase 1,089 and 45 shares of common stock for the quarters ended July 1, 2019 and July 2, 2018, respectively, and 1,089 and 488 shares of common stock for the two quarters ended July 1, 2019 and July 2, 2018, respectively, were not included in the computation of diluted earnings per share because the options’ exercise prices or the total expected proceeds under the treasury stock method for PRUs, RSUs, or stock options was greater than the average market price of common shares during the applicable quarter and two quarters and, as a result, the impact would be anti-dilutive. Outstanding warrants for the quarter and two quarters ended July 1, 2019, to purchase common stock were not included in the computation of dilutive earnings per share because the strike price of the warrants to purchase the Company’s common stock were greater than the average market price of common shares during the applicable quarter, and therefore, the effect would be anti-dilutive. For the quarter and two quarters ended July 1, 2019, the effect of shares of common stock related to the Company’s Convertible Senior Notes, based on the if-converted method, were not included in the computation of dilutive earnings per share as the impact would be anti-dilutive.

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Jul. 01, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation	(16) Stock-Based Compensation Stock-based compensation expense is recognized in the accompanying consolidated condensed statements of operations as follows: Quarter Ended Two Quarters Ended July 1, July 2, July 1, July 2, 2019 2018 2019 2018 (In thousands) Cost of goods sold $ 570 $ 829 $ 1,275 $ 1,358 Selling and marketing 396 545 862 919 General and administrative 2,636 4,493 5,391 7,212 Stock-based compensation expense recognized $ 3,602 $ 5,867 $ 7,528 $ 9,489 Performance-based Restricted Stock Units The Company maintains a long-term incentive program for executives that provides for the issuance of PRUs, representing hypothetical shares of the Company’s common stock that may be issued. Under the PRU program, a target number of PRUs is typically awarded at the beginning of each three-year performance period. The number of shares of common stock released at the end of the performance period will range from zero to 2.4 times the target number depending on performance during the period. The performance metrics of the PRU program are based on (a) annual financial targets, which are based on revenue and EBITDA (earnings before interest, tax, depreciation, and amortization expense), each equally weighted, and (b) an overall modifier based on the Company’s total stockholder return (TSR) relative to a group of peer companies selected by the Company’s compensation committee, over the three-year performance period. The Company records stock-based compensation expense for PRU awards granted based on management’s periodic assessment of the annual financial performance goals to be achieved. As of July 1, 2019, management determined that vesting of the PRU awards was probable. PRUs activity for the two quarters ended July 1, 2019 was as follows: Shares Weighted Average Fair Value (In thousands) Outstanding shares as of December 31, 2018 255 $ 18.75 Granted 293 10.17 Change in units due to annual performance achievement (51 ) 10.15 Forfeited / cancelled (6 ) 15.18 Outstanding shares as of July 1, 2019 491 $ 14.57 The fair value of PRUs granted is calculated using a Monte Carlo simulation model, as the TSR modifier contains a market condition. For the two quarters ended July 1, 2019 and July 2, 2018, the following assumptions were used in determining the fair value: Two Quarters Ended July 1, July 2, 2019 (1) 2018 (2) Weighted-average fair value $ 10.17 $ 19.59 Risk-free interest rate 2.18 % 2.14 % Dividend yield — — Expected volatility 38 % 40 % Expected term in years 1.8 1.5 (1) Reflects the weighted-averages for the third year of the three-year performance period applicable to PRUs granted in 2017 and second year of the three-year performance period applicable to PRUs granted in 2018 and first year of the three-year performance period applicable to PRUs granted in 2019. (2) Reflects the weighted-averages for the third year of the three-year performance period applicable to PRUs granted in 2016, second year of the three-year performance period applicable to PRUs granted in 2017 and first year of the three-year performance period applicable to PRUs granted in 2018. The risk-free interest rate for the expected term of PRUs is based on the U.S. Treasury yield curve in effect at the time of grant. Expected volatility is calculated using the Company’s historical stock price. The expected term of the PRUs reflects the performance period for the PRUs granted. Restricted Stock Units The Company granted 1,599 and 195 RSUs during the quarters ended July 1, 2019 and July 2, 2018, respectively, and 1,601 and 1,023 RSUs during the two quarters ended July 1, 2019 and July 2, 2018, respectively. The RSUs granted have a weighted-average fair value per unit of $10.04 and $16.06 for the quarters ended July 1, 2019 and July 2, 2018, respectively, and $10.04 and $15.44 for the two quarters ended July 1, 2019 and July 2, 2018, respectively. The fair value for RSUs granted is based on the closing share price of the Company’s common stock on the date of grant. Stock Options The Company did not grant stock option awards during the quarter and two quarters ended July 1, 2019. During the quarter and two quarters ended July 2, 2018, the Company granted 20 stock option awards to a newly appointed member of the board which were estimated to have a fair value per share of $8.92. The fair value calculation is based on stock options granted during the period using the Black-Scholes option-pricing model on the date of grant. For the quarter and two quarters ended July 2, 2018, the fair value was determined using 3.0% as the risk-free interest rate, 43.0% as the expected volatility, 8.5 years Summary of Unrecognized Compensation Costs The following is a summary of total unrecognized compensation costs as of July 1, 2019: Unrecognized Stock-Based Compensation Cost Remaining Weighted Average Recognition Period (In thousands) (In years) RSU awards $ 27,002 1.6 PRU awards 3,326 1.3 Stock options 300 1.9 $ 30,628

Segment Information

Segment Information	6 Months Ended
	Jul. 01, 2019
Segment Reporting [Abstract]
Segment Information	(17) Segment Information The reportable segments shown below are the Company’s segments for which separate financial information is available and upon which operating results are evaluated by the chief operating decision maker to assess performance and to allocate resources. The Company has two reportable segments: PCB and E-M Solutions. The PCB reportable segment is comprised of multiple operating segments. Factors considered to determine whether operating segments can be aggregated into reportable segments included similarity regarding economic characteristics, products, production processes, type or classes of customers, distribution methods, and regulatory environments. The Company, including the chief operating decision maker, evaluates segment performance based on reportable segment income, which is operating income before amortization of intangibles. Interest expense and interest income are not presented by segment since they are not included in the measure of segment profitability reviewed by the chief operating decision maker. All inter-segment transactions have been eliminated. Quarter Ended Two Quarters Ended July 1, 2019 July 2, 2018 July 1, 2019 July 2, 2018 (In thousands) Net Sales: PCB $ 573,121 $ 655,045 $ 1,141,943 $ 1,271,476 E-M Solutions 59,917 61,842 111,295 108,993 Total net sales $ 633,038 $ 716,887 $ 1,253,238 $ 1,380,469 Operating Segment Income (Loss): PCB $ 50,989 $ 80,964 $ 109,531 $ 144,428 E-M Solutions 863 2,496 2,042 2,536 Corporate (22,561 ) (32,237 ) (46,787 ) (59,879 ) Total operating segment income 29,291 51,223 64,786 87,085 Amortization of definite-lived intangibles (1) (12,447 ) (19,489 ) (30,452 ) (25,350 ) Total operating income 16,844 31,734 34,334 61,735 Total other expense, net (16,250 ) (14,275 ) (38,468 ) (29,129 ) Income (loss) before income taxes $ 594 $ 17,459 $ (4,134 ) $ 32,606 (1) Amortization of definite-lived intangibles primarily relates to the PCB reportable segment. For the quarter and two quarters ended July 1, 2019, $1,180 and $2,359, respectively, of amortization expense is included in cost of goods sold. The Corporate category primarily includes operating expenses that are not included in the segment operating performance measures. Corporate consists primarily of corporate governance functions such as finance, accounting, information technology, facilities and human resources personnel, as well as global sales and marketing personnel, research and development costs, acquisition and integration costs associated with acquisitions.

Related Party Transactions

Related Party Transactions	6 Months Ended
	Jul. 01, 2019
Related Party Transactions [Abstract]
Related Party Transactions	(18) Related Party Transactions In the normal course of business, the Company’s foreign subsidiaries purchase laminate and prepreg from related parties in which a member of the Board of Directors of the Company holds an equity interest. The Company’s foreign subsidiaries purchased laminate and prepreg from these related parties in the amount of $8,917 and $12,550 for the quarters ended July 1, 2019 and July 2, 2018, respectively, and $17,229 and $25,258 for the two quarters ended July 1, 2019 and July 2, 2018, respectively. As of July 1, 2019 and December 31, 2018, the Company’s consolidated condensed balance sheets included $10,537 and $10,630, respectively, in accounts payable due to related parties for purchases of laminate and prepreg and such balances are included as a component of accounts payable on the consolidated condensed balance sheets.

Restructuring Charges

Restructuring Charges	6 Months Ended
	Jul. 01, 2019
Restructuring And Related Activities [Abstract]
Restructuring Charges	(19) Restructuring Charges The Company periodically incurs restructuring charges as part of the integration process of recent acquisitions and to realign its operations with anticipated market demand. The Company recognized employee separation, contract termination and other costs during the quarter and two quarters ended July 1, 2019. Contract termination and other costs primarily represented plant closure costs. The below table summarizes such restructuring costs by reportable segment for the quarter and two quarters ended July 1, 2019: Quarter Ended July 1, 2019 Two Quarters Ended July 1, 2019 Employee separation/ severance Contract termination and other costs Total Employee separation/ severance Contract termination and other costs Total (In thousands) Reportable Segment: PCB $ 3,776 $ — $ 3,776 $ 4,213 $ — $ 4,213 E-M Solutions — — — — — — Corporate 160 8 168 160 16 176 $ 3,936 $ 8 $ 3,944 $ 4,373 $ 16 $ 4,389 Accrued restructuring costs are included as a component of other current liabilities in the consolidated condensed balance sheet. The below table shows the utilization of the accrued restructuring costs during the two quarters ended July 1, 2019: Employee separation/ severance Contract termination and other costs Total (In thousands) Accrued at December 31, 2018 $ 3,158 $ 393 $ 3,551 Charged to expense 4,373 16 4,389 Amount paid (3,851 ) (61 ) (3,912 ) Accrued at July 1, 2019 $ 3,680 $ 348 $ 4,028

Nature of Operations and Basi_2

Nature of Operations and Basis of Presentation (Policies)	6 Months Ended
	Jul. 01, 2019
Accounting Policies [Abstract]
Reclassifications	Reclassifications Certain amounts in the prior period consolidated condensed financial statement have been reclassified to conform to the presentation of the current period consolidated condensed financial statement. These reclassifications had no effect on the previously reported net income. An adjustment has been made to combine the statutory surplus reserve with retained earnings on the consolidated condensed balance sheet and the consolidated condensed statement of stockholders’ equity.
Recently Adopted and Issued Accounting Standards	Recently Adopted and Issued Accounting Standards Recently Adopted Accounting Standards In February 2016, the Financial Accounting Standards Board (FASB) issued ASU 2016-02, Leases (Topic 842) In July 2018, the FASB issued ASU 2018-11, Leases (Topic 842): Targeted Improvements The Company adopted the new lease standard as of January 1, 2019 and utilized the retrospective cumulative effect adjustment transition method with a cumulative effect adjustment being recorded as of the adoption date. Therefore, comparative information has not been adjusted and continues to be reported under previous U.S. GAAP guidance for the consolidated condensed balance sheet as of December 31, 2018 and the consolidated condensed statement of operations for the quarter and two quarters ended July 2, 2018. The Company implemented internal controls and key system functionality to enable the preparation of financial information on adoption. The Company elected certain available practical expedients including the package of practical expedients permitted under the transition guidance within the new standard, which among other things, allowed the Company to carry forward the historical lease classification. Additionally, the Company elected an accounting policy to not record ROU assets and lease liabilities for leases with an initial term of twelve months or less on its consolidated condensed balance sheet. The cumulative effect of the changes made to the Company’s January 1, 2019 consolidated condensed balance sheet for the adoption of the new lease standard was as follows: Balance as of December 31, 2018 New Lease Standard Adjustment Balance as of January 1, 2019 (In thousands) Assets Operating lease right-of-use assets $ — $ 16,894 $ 16,894 Deposits and other non-current assets 55,597 (548 ) 55,049 Liabilities Other current liabilities 113,756 2,545 116,301 Operating lease liabilities — 14,356 14,356 Other long-term liabilities 94,777 (555 ) 94,222 The adoption of the new accounting guidance did not have a material impact to the consolidated condensed statement of operations for the quarter and two quarters ended July 1, 2019, or the consolidated condensed statement of cash flows for the two quarters ended July 1, 2019. See Note 3 for further details. In June 2018, the FASB issued ASU 2018-07, Compensation-Stock Compensation (Topic 718): Improvements to Nonemployee Share-based Payments In August 2017, the FASB issued ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities Recently Issued Accounting Standards Not Yet Adopted In August 2018, the FASB issued ASU 2018-14, Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20)—Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments
Leases	Leases The Company determines if an arrangement is a lease at inception. Operating leases are included in operating lease ROU assets, other current liabilities, and operating lease liabilities on the consolidated condensed balance sheets. ROU assets represent the Company’s right to use an underlying asset for the lease term and lease liabilities represent the Company’s obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. As most of the Company’s leases do not provide an implicit rate, the Company uses incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. The operating lease ROU asset also includes any lease payments made and excludes lease incentives. Lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. Lease expense for lease payments is recognized on a straight-line basis over the lease term. The Company has lease agreements with lease and non-lease components and accounts for the lease and non-lease components as a single lease component.

Nature of Operations and Basi_3

Nature of Operations and Basis of Presentation (Tables)	6 Months Ended
	Jul. 01, 2019
Accounting Policies [Abstract]
Schedule of Cumulative Effect of Changes Made to Consolidated Condensed Balance Sheet	The cumulative effect of the changes made to the Company’s January 1, 2019 consolidated condensed balance sheet for the adoption of the new lease standard was as follows: Balance as of December 31, 2018 New Lease Standard Adjustment Balance as of January 1, 2019 (In thousands) Assets Operating lease right-of-use assets $ — $ 16,894 $ 16,894 Deposits and other non-current assets 55,597 (548 ) 55,049 Liabilities Other current liabilities 113,756 2,545 116,301 Operating lease liabilities — 14,356 14,356 Other long-term liabilities 94,777 (555 ) 94,222

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jul. 01, 2019
Leases [Abstract]
Components of Lease Expense	The components of lease expense were as follows: Quarter Ended July 1, 2019 Two Quarters Ended July 1, 2019 (In thousands) Operating lease cost $ 2,293 $ 4,524 Variable lease cost 1,811 2,002 Short-term lease cost 230 381
Supplemental Cash Flow Information Related to Leases	Supplemental cash flow information related to leases was as follows: Two Quarters Ended July 1, 2019 (In thousands) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 4,410 Right-of-use assets obtained in exchange for new lease obligations: Operating leases 12,860
Supplemental Balance Sheet Information Related to Leases	Supplemental balance sheet information related to leases was as follows: As of July 1, 2019 (In thousands) Operating lease right-of-use assets $ 25,625 Other current liabilities 7,376 Operating lease liabilities 18,365 Total operating lease liabilities $ 25,741 Weighted average remaining lease term 4.6 years Weighted average discount rate 3.97 %
Maturities of Operating Lease Liabilities	Maturities of operating lease liabilities were as follows (1) (In thousands) Less than one year $ 8,182 1 - 2 years 6,964 2 - 3 years 4,864 3 - 4 years 2,449 4 - 5 years 1,925 Thereafter 3,886 Total lease payments 28,270 Less imputed interest (2,529 ) Total $ 25,741 (1) Excludes $851 of legally binding minimum lease payments for leases signed but not yet commenced.
Schedule of Future Minimum Lease Payments	The following is a schedule of future minimum lease payments as of December 31, 2018: Operating Leases (In thousands) 2019 $ 7,282 2020 4,701 2021 3,406 2022 2,408 2023 2,172 Thereafter 4,172 Total minimum lease payments $ 24,141

Revenues (Tables)

Revenues (Tables)	6 Months Ended
	Jul. 01, 2019
Revenue From Contract With Customer [Abstract]
Schedule of Disaggregation of Revenue by Principal End Markets with the Reportable Segment	The following tables represent a disaggregation of revenue by principal end markets with the reportable segments: Quarter Ended July 1, 2019 Quarter Ended July 2, 2018 PCB E-M Solutions Total PCB E-M Solutions Total End Markets (In thousands) Aerospace and Defense $ 175,301 $ 362 $ 175,663 $ 162,951 $ 455 $ 163,406 Automotive 79,048 23,993 103,041 110,607 25,854 136,461 Cellular Phone 40,094 — 40,094 55,393 — 55,393 Computing/Storage/Peripherals 95,127 — 95,127 109,633 568 110,201 Medical/Industrial/Instrumentation 87,471 9,641 97,112 96,704 9,856 106,560 Networking/Communications 79,937 25,926 105,863 99,353 24,602 123,955 Other 16,143 (5 ) 16,138 20,404 507 20,911 Total $ 573,121 $ 59,917 $ 633,038 $ 655,045 $ 61,842 $ 716,887 Two Quarters Ended July 1, 2019 Two Quarters Ended July 2, 2018 PCB E-M Solutions Total PCB E-M Solutions Total End Markets (In thousands) Aerospace and Defense $ 340,369 $ 366 $ 340,735 $ 285,627 $ 544 $ 286,171 Automotive 164,861 43,758 208,619 226,899 45,164 272,063 Cellular Phone 83,178 — 83,178 160,253 — 160,253 Computing/Storage/Peripherals 176,019 189 176,208 198,175 873 199,048 Medical/Industrial/Instrumentation 175,141 17,808 192,949 190,338 17,379 207,717 Networking/Communications 168,000 49,265 217,265 181,290 44,075 225,365 Other 34,375 (91 ) 34,284 28,894 958 29,852 Total $ 1,141,943 $ 111,295 $ 1,253,238 $ 1,271,476 $ 108,993 $ 1,380,469

Composition of Certain Consol_2

Composition of Certain Consolidated Condensed Financial Statement Captions (Tables)	6 Months Ended
	Jul. 01, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Schedule of Composition of Certain Consolidated Condensed Financial Statement Captions	As of As of July 1, 2019 December 31, 2018 (In thousands) Inventories: Raw materials $ 102,974 $ 97,600 Work-in-process 13,083 10,299 Finished goods 6,092 1,478 $ 122,149 $ 109,377 Property, plant and equipment, net: Land and land use rights $ 74,850 $ 75,431 Buildings and improvements 538,003 534,122 Machinery and equipment 1,398,905 1,357,035 Construction-in-progress, furniture and fixtures and other 57,946 42,713 2,069,704 2,009,301 Less: Accumulated depreciation (1,032,617 ) (957,277 ) $ 1,037,087 $ 1,052,024

Goodwill (Tables)

Goodwill (Tables)	6 Months Ended
	Jul. 01, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill	As of July 1, 2019 and December 31, 2018, goodwill was as follows: Total (In thousands) Balance as of July 1, 2019 and December 31, 2018 Goodwill $ 938,445 Accumulated impairment losses (171,400 ) $ 767,045

Definite-lived Intangibles (Tab

Definite-lived Intangibles (Tables)	6 Months Ended
	Jul. 01, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Definite Lived Intangibles	As of July 1, 2019 and December 31, 2018, the components of definite-lived intangibles were as follows: Gross Amount Accumulated Amortization Net Carrying Amount Weighted Average Amortization Period (In thousands) (In years) July 1, 2019 Customer relationships $ 415,000 $ (103,324 ) $ 311,676 10.7 Technology 39,500 (5,705 ) 33,795 9.4 $ 454,500 $ (109,029 ) $ 345,471 December 31, 2018 Customer relationships $ 203,634 $ (123,522 ) $ 80,112 8.1 Technology 3,000 (3,000 ) — 3.0 Acquired intangibles from acquisition Customer relationships 267,500 (15,561 ) 251,939 12.2 Developed technology 39,500 (3,345 ) 36,155 9.4 Backlog 29,000 (21,283 ) 7,717 0.9 $ 542,634 $ (166,711 ) $ 375,923
Estimated Aggregate Amortization for Definite-Lived Intangible Assets	Estimated aggregate amortization for definite-lived intangible assets for the next five years and thereafter is as follows: (In thousands) Remaining 2019 $ 22,709 2020 45,419 2021 42,108 2022 39,002 2023 36,290 Thereafter 159,943 $ 345,471

Long-term Debt and Letters of_2

Long-term Debt and Letters of Credit (Tables)	6 Months Ended
	Jul. 01, 2019
Debt Disclosure [Abstract]
Long-term Debt	The following table summarizes the long-term debt of the Company as of July 1, 2019 and December 31, 2018: Interest Rate as of July 1, 2019 Principal Outstanding as of July 1, 2019 Interest Rate as of December 31, 2018 Principal Outstanding as of December 31, 2018 (In thousands, except interest rates) Term Loan due September 2024 4.89 % $ 805,879 5.00 % $ 835,879 Senior Notes due October 2025 5.63 375,000 5.63 375,000 Convertible Senior Notes due December 2020 1.75 249,975 1.75 249,985 U.S. ABL Revolving Loan due June 2024 3.76 40,000 4.00 40,000 Asia ABL Revolving Loan due June 2024 3.79 30,000 3.90 30,000 1,500,854 1,530,864 Less: Long-term debt unamortized discount (17,090 ) (22,167 ) Long-term debt unamortized debt issuance costs (14,494 ) (16,272 ) 1,469,270 1,492,425 Less: current maturities — (30,000 ) Long-term debt, less current maturities $ 1,469,270 $ 1,462,425
Schedule of Liability and Equity Components of Convertible Senior Notes Included in Additional Paid-in Capital	As of July 1, 2019 and December 31, 2018, the following summarizes the equity components of the Convertible Senior Notes included in additional paid-in capital: As of July 1, 2019 As of December 31, 2018 Embedded conversion option — Convertible Senior Notes Embedded conversion option — Convertible Senior Notes Issuance Costs Total Embedded conversion option — Convertible Senior Notes Embedded conversion option — Convertible Senior Notes Issuance Costs Total (In thousands) Convertible Senior Notes due 2020 $ 60,213 $ (1,916 ) $ 58,297 $ 60,216 $ (1,916 ) $ 58,300
Components of Interest Expense from Convertible Senior Notes	The components of interest expense resulting from the Convertible Senior Notes for the quarter and two quarters ended July 1, 2019 and July 2 , 2018 Quarter Ended Two Quarters Ended July 1, July 2, July 1, July 2, 2019 2018 2019 2018 (In thousands) Contractual coupon interest $ 1,093 $ 1,093 $ 2,187 $ 2,187 Amortization of debt discount $ 2,418 $ 2,267 $ 4,797 $ 4,497 Amortization of debt issuance costs $ 243 $ 227 $ 481 $ 451
Schedule of Remaining Unamortized Debt Discount and Debt Issuance Costs	As of July 1 , 2019 As of July 1, 2019 As of December 31, 2018 Debt Issuance Costs Debt Discount Effective Interest Rate Debt Issuance Costs Debt Discount Effective Interest Rate (In thousands, except interest rates) Term Loan due September 2024 $ 7,303 $ 2,210 4.66 % $ 8,229 $ 2,489 4.66 % Senior Notes due October 2025 5,700 — 5.92 6,071 — 5.92 Convertible Senior Notes 1,491 14,880 6.48 1,972 19,678 6.48 $ 14,494 $ 17,090 $ 16,272 $ 22,167

Financial Instruments (Tables)

Financial Instruments (Tables)	6 Months Ended
	Jul. 01, 2019
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Summary of Fair Values of Derivative Instruments in Consolidated Balance Sheets	The fair values of derivative instruments in the consolidated condensed balance sheets are as follows: Asset / (Liability) Fair Value Balance Sheet Location July 1, 2019 December 31, 2018 (In thousands) Cash flow derivative instruments designated as hedges: Foreign exchange contracts Prepaid expenses and other current assets $ 40 $ — Interest rate swap Other long-term liabilities (12,693 ) (4,735 ) Cash flow derivative instruments not designated as hedges: Foreign exchange contracts Other current liabilities — (139 )
Summary of Accumulated Other Comprehensive Loss Related to Derivatives Designated as Cash Flow Hedges	The following table provides information about the amounts recorded in accumulated other comprehensive loss related to derivatives designated as cash flow hedges, as well as the amounts recorded in each caption in the consolidated condensed statements of operations when derivative amounts are reclassified out of accumulated other comprehensive loss for the quarter and two quarters ended July 1, 2019 and July 2, 2018: Quarter Ended July 1, 2019 Quarter Ended July 2, 2018 Financial Statement Caption Loss Recognized in Other Comprehensive Income Loss Reclassified into Income Loss Recognized in Other Comprehensive Income Loss Reclassified into Income (In thousands) Cash flow hedge: Interest rate swap Interest expense $ (6,077 ) $ (367 ) $ (1,719 ) $ (303 ) Foreign currency forward Depreciation expense (5 ) (39 ) (20 ) (39 ) Two Quarters Ended July 1, 2019 Two Quarters Ended July 2, 2018 Financial Statement Caption Loss Recognized in Other Comprehensive Income Loss Reclassified into Income Loss Recognized in Other Comprehensive Income Loss Reclassified into Income (In thousands) Cash flow hedge: Interest rate swap Interest expense $ (8,663 ) $ (706 ) $ (1,719 ) $ (303 ) Foreign currency forward Depreciation expense (5 ) (78 ) (26 ) (80 )
Summary of Activity of Designated Cash Flow Hedges in Accumulated Other Comprehensive Loss	The following table provides a summary of the activity associated with the designated cash flow hedges reflected in accumulated other comprehensive loss for the two quarters ended July 1, 2019 and July 2, 2018: Two Quarters Ended July 1, July 2, 2019 2018 (In thousands) Beginning balance, net of tax $ (4,214 ) $ (742 ) Changes in fair value loss, net of tax (6,331 ) (1,745 ) Reclassification to earnings 574 383 Ending balance, net of tax $ (9,971 ) $ (2,104 )
Summary of Net Gain (Loss) Recognized in Other, Net in Consolidated Statement of Operation on Derivative Instruments Not Designated as Hedges	The net gain (loss) recognized in other, net in the consolidated condensed statements of operations on derivative instruments not designated as hedges is as follows: Quarter Ended Two Quarters Ended July 1, July 2, July 1, July 2, 2019 2018 2019 2018 (In thousands) Derivative instruments not designated as hedges: Foreign exchange contracts $ 45 $ (324 ) $ 49 $ 103

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	6 Months Ended
	Jul. 01, 2019
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Loss, Net of Tax	The following provides a summary of the components of accumulated other comprehensive loss, net of tax, as of July 1, 2019 and December 31, 2018: Foreign Currency Translation Pension Obligation Gains (Losses) on Cash Flow Hedges Total (In thousands) Ending balance as of December 31, 2018 $ 1,578 $ (1,284 ) $ (4,214 ) $ (3,920 ) Other comprehensive loss before reclassifications 29 19 (6,331 ) (6,283 ) Amounts reclassified from accumulated other comprehensive income — — 574 574 Other comprehensive loss 29 19 (5,757 ) (5,709 ) Ending balance as of July 1, 2019 $ 1,607 $ (1,265 ) $ (9,971 ) $ (9,629 )

Fair Value Measures (Tables)

Fair Value Measures (Tables)	6 Months Ended
	Jul. 01, 2019
Fair Value Disclosures [Abstract]
Carrying Amount and Estimated Fair Value of Financial Instruments	The carrying amount and estimated fair value of the Company’s financial instruments as of July 1, 2019 and December 31, 2018 were as follows: As of As of July 1, 2019 December 31, 2018 Carrying Amount Fair Value Carrying Amount Fair Value (In thousands) Derivative liabilities, current $ — $ — $ 139 $ 139 Derivative liabilities, non-current 12,693 12,693 4,735 4,735 Term Loan due September 2024 796,366 798,828 825,161 782,592 Senior Notes due October 2025 369,300 369,274 368,929 350,880 Convertible Senior Notes 233,604 293,571 228,335 290,858 ABL Revolving Loans 70,000 70,000 70,000 70,000

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jul. 01, 2019
Earnings Per Share [Abstract]
Reconciliation of Numerator and Denominator Used to Calculate Basic Earnings per Share and Diluted Earnings per Share	The following is a reconciliation of the numerator and denominator used to calculate basic earnings per share and diluted earnings per share for the quarter and two quarters ended July 1, 2019 and July 2, 2018: Quarter Ended Two Quarters Ended July 1, 2019 July 2, 2018 July 1, 2019 July 2, 2018 (In thousands, except per share amounts) Basic earnings: Basic earnings $ 3,424 $ 84,004 $ 172 $ 94,101 Diluted earnings: Net income $ 3,424 $ 84,004 $ 172 $ 94,101 Interest expense from Convertible Senior Notes, net of tax — 3,587 — 7,135 Diluted earnings $ 3,424 $ 87,591 $ 172 $ 101,236 Basic weighted average shares 105,470 103,553 104,893 103,030 Dilutive effect of performance-based restricted stock units, restricted stock units and stock options 637 1,376 967 1,603 Dilutive effect of outstanding warrants — 3,854 — 3,517 Dilutive effect of assumed conversion of Convertible Senior Notes outstanding — 25,938 — 25,938 Diluted shares 106,107 134,721 105,860 134,088 Earnings per share: Basic $ 0.03 $ 0.81 $ 0.00 $ 0.91 Diluted $ 0.03 $ 0.65 $ 0.00 $ 0.75

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	6 Months Ended
	Jul. 01, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Amounts Recognized in Consolidated Financial Statements of Operations with Respect to Stock Based Compensation Plan	Stock-based compensation expense is recognized in the accompanying consolidated condensed statements of operations as follows: Quarter Ended Two Quarters Ended July 1, July 2, July 1, July 2, 2019 2018 2019 2018 (In thousands) Cost of goods sold $ 570 $ 829 $ 1,275 $ 1,358 Selling and marketing 396 545 862 919 General and administrative 2,636 4,493 5,391 7,212 Stock-based compensation expense recognized $ 3,602 $ 5,867 $ 7,528 $ 9,489
Performance-Based Restricted Stock Units Activity	PRUs activity for the two quarters ended July 1, 2019 was as follows: Shares Weighted Average Fair Value (In thousands) Outstanding shares as of December 31, 2018 255 $ 18.75 Granted 293 10.17 Change in units due to annual performance achievement (51 ) 10.15 Forfeited / cancelled (6 ) 15.18 Outstanding shares as of July 1, 2019 491 $ 14.57
Assumptions Used in Determining Fair Value	For the two quarters ended July 1, 2019 and July 2, 2018, the following assumptions were used in determining the fair value: Two Quarters Ended July 1, July 2, 2019 (1) 2018 (2) Weighted-average fair value $ 10.17 $ 19.59 Risk-free interest rate 2.18 % 2.14 % Dividend yield — — Expected volatility 38 % 40 % Expected term in years 1.8 1.5 (1) Reflects the weighted-averages for the third year of the three-year performance period applicable to PRUs granted in 2017 and second year of the three-year performance period applicable to PRUs granted in 2018 and first year of the three-year performance period applicable to PRUs granted in 2019. (2) Reflects the weighted-averages for the third year of the three-year performance period applicable to PRUs granted in 2016, second year of the three-year performance period applicable to PRUs granted in 2017 and first year of the three-year performance period applicable to PRUs granted in 2018.
Summary of Unrecognized Compensation Costs	The following is a summary of total unrecognized compensation costs as of July 1, 2019: Unrecognized Stock-Based Compensation Cost Remaining Weighted Average Recognition Period (In thousands) (In years) RSU awards $ 27,002 1.6 PRU awards 3,326 1.3 Stock options 300 1.9 $ 30,628

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jul. 01, 2019
Segment Reporting [Abstract]
Reconciliation of Operating Income (Loss) from Segments to Consolidated	Quarter Ended Two Quarters Ended July 1, 2019 July 2, 2018 July 1, 2019 July 2, 2018 (In thousands) Net Sales: PCB $ 573,121 $ 655,045 $ 1,141,943 $ 1,271,476 E-M Solutions 59,917 61,842 111,295 108,993 Total net sales $ 633,038 $ 716,887 $ 1,253,238 $ 1,380,469 Operating Segment Income (Loss): PCB $ 50,989 $ 80,964 $ 109,531 $ 144,428 E-M Solutions 863 2,496 2,042 2,536 Corporate (22,561 ) (32,237 ) (46,787 ) (59,879 ) Total operating segment income 29,291 51,223 64,786 87,085 Amortization of definite-lived intangibles (1) (12,447 ) (19,489 ) (30,452 ) (25,350 ) Total operating income 16,844 31,734 34,334 61,735 Total other expense, net (16,250 ) (14,275 ) (38,468 ) (29,129 ) Income (loss) before income taxes $ 594 $ 17,459 $ (4,134 ) $ 32,606 (1) Amortization of definite-lived intangibles primarily relates to the PCB reportable segment. For the quarter and two quarters ended July 1, 2019, $1,180 and $2,359, respectively, of amortization expense is included in cost of goods sold.

Restructuring Charges (Tables)

Restructuring Charges (Tables)	6 Months Ended
	Jul. 01, 2019
Restructuring And Related Activities [Abstract]
Summary of Restructuring Costs by Reportable Segment	The below table summarizes such restructuring costs by reportable segment for the quarter and two quarters ended July 1, 2019: Quarter Ended July 1, 2019 Two Quarters Ended July 1, 2019 Employee separation/ severance Contract termination and other costs Total Employee separation/ severance Contract termination and other costs Total (In thousands) Reportable Segment: PCB $ 3,776 $ — $ 3,776 $ 4,213 $ — $ 4,213 E-M Solutions — — — — — — Corporate 160 8 168 160 16 176 $ 3,936 $ 8 $ 3,944 $ 4,373 $ 16 $ 4,389
Accrued Restructuring Costs	The below table shows the utilization of the accrued restructuring costs during the two quarters ended July 1, 2019: Employee separation/ severance Contract termination and other costs Total (In thousands) Accrued at December 31, 2018 $ 3,158 $ 393 $ 3,551 Charged to expense 4,373 16 4,389 Amount paid (3,851 ) (61 ) (3,912 ) Accrued at July 1, 2019 $ 3,680 $ 348 $ 4,028

Nature of Operations and Basi_4

Nature of Operations and Basis of Presentation - Cumulative Effect of Changes to Consolidated Condensed Balance Sheet For Adoption of New Lease Standard (Detail) - USD ($) $ in Thousands	Jul. 01, 2019	Jan. 01, 2019	Dec. 31, 2018
Assets
Operating lease right-of-use assets	$ 25,625
Deposits and other non-current assets	75,199		$ 55,597
Liabilities
Other	107,143		113,756
Operating lease liabilities	18,365
Other long-term liabilities	$ 99,446		94,777
Previously Reported
Assets
Deposits and other non-current assets			55,597
Liabilities
Other			113,756
Other long-term liabilities			$ 94,777
ASU 2016-02, Leases (Topic 842)
Assets
Operating lease right-of-use assets		$ 16,894
Deposits and other non-current assets		55,049
Liabilities
Other		116,301
Operating lease liabilities		14,356
Other long-term liabilities		94,222
ASU 2016-02, Leases (Topic 842) | New Lease Standard Adjustment
Assets
Operating lease right-of-use assets		16,894
Deposits and other non-current assets		(548)
Liabilities
Other		2,545
Operating lease liabilities		14,356
Other long-term liabilities		$ (555)

Components of Lease Expense (De

Components of Lease Expense (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jul. 01, 2019	Jul. 01, 2019
Leases [Abstract]
Operating lease cost	$ 2,293	$ 4,524
Variable lease cost	1,811	2,002
Short-term lease cost	$ 230	$ 381

Supplemental Cash Flow Informat

Supplemental Cash Flow Information Related to Leases (Detail) $ in Thousands	6 Months Ended
	Jul. 01, 2019USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 4,410
Right-of-use assets obtained in exchange for new lease obligations:
Operating leases	$ 12,860

Supplemental Balance Sheet Info

Supplemental Balance Sheet Information Related to Leases (Detail) $ in Thousands	Jul. 01, 2019USD ($)
Leases [Abstract]
Operating lease right-of-use assets	$ 25,625
Other current liabilities	$ 7,376
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesCurrent
Operating lease liabilities	$ 18,365
Total operating lease liabilities	$ 25,741
Weighted average remaining lease term	4 years 7 months 6 days
Weighted average discount rate	3.97%

Maturities of Operating Lease L

Maturities of Operating Lease Liabilities (Detail) $ in Thousands	Jul. 01, 2019USD ($)
Leases [Abstract]
Less than one year	$ 8,182
1 - 2 years	6,964
2 - 3 years	4,864
3 - 4 years	2,449
4 - 5 years	1,925
Thereafter	3,886
Total lease payments	28,270
Less imputed interest	(2,529)
Total	$ 25,741

Maturities of Operating Lease_2

Maturities of Operating Lease Liabilities (Parenthetical) (Detail)	Jul. 01, 2019USD ($)
Leases [Abstract]
Legally binding lease payments for leases signed but not yet commenced	$ 851,000

Schedule of Future Minimum Leas

Schedule of Future Minimum Lease Payments (Detail) $ in Thousands	Dec. 31, 2018USD ($)
Leases [Abstract]
2019	$ 7,282
2020	4,701
2021	3,406
2022	2,408
2023	2,172
Thereafter	4,172
Total minimum lease payments	$ 24,141

Revenues - Additional Informati

Revenues - Additional Information (Detail 1) - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2019-07-02 $ in Thousands	Jul. 01, 2019USD ($)
Revenue From Contract With Customer [Line Items]
Transaction price allocated to remaining performance obligations	$ 20,097
Remaining performance obligation period	12 months

Revenues - Additional Informa_2

Revenues - Additional Information (Detail)	3 Months Ended	6 Months Ended
	Jul. 01, 2019	Jul. 01, 2019
Revenue From Contract With Customer [Line Items]
Remaining revenue performance obligation, percentage	94.00%	94.00%
Transferred over Time
Revenue From Contract With Customer [Line Items]
Revenue from products and services transferred to customers, percentage	97.00%	97.00%
Transferred at Point in Time
Revenue From Contract With Customer [Line Items]
Revenue from products and services transferred to customers, percentage	3.00%	3.00%

Disaggregation of Revenue by Pr

Disaggregation of Revenue by Principal End Markets with the Reportable Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2019	Jul. 02, 2018	Jul. 01, 2019	Jul. 02, 2018
Disaggregation Of Revenue [Line Items]
Total Revenue	$ 633,038	$ 716,887	$ 1,253,238	$ 1,380,469
Printed Circuit Board
Disaggregation Of Revenue [Line Items]
Total Revenue	573,121	655,045	1,141,943	1,271,476
E-M Solutions
Disaggregation Of Revenue [Line Items]
Total Revenue	59,917	61,842	111,295	108,993
Aerospace and Defense
Disaggregation Of Revenue [Line Items]
Total Revenue	175,663	163,406	340,735	286,171
Aerospace and Defense | Printed Circuit Board
Disaggregation Of Revenue [Line Items]
Total Revenue	175,301	162,951	340,369	285,627
Aerospace and Defense | E-M Solutions
Disaggregation Of Revenue [Line Items]
Total Revenue	362	455	366	544
Automotive
Disaggregation Of Revenue [Line Items]
Total Revenue	103,041	136,461	208,619	272,063
Automotive | Printed Circuit Board
Disaggregation Of Revenue [Line Items]
Total Revenue	79,048	110,607	164,861	226,899
Automotive | E-M Solutions
Disaggregation Of Revenue [Line Items]
Total Revenue	23,993	25,854	43,758	45,164
Cellular Phone
Disaggregation Of Revenue [Line Items]
Total Revenue	40,094	55,393	83,178	160,253
Cellular Phone | Printed Circuit Board
Disaggregation Of Revenue [Line Items]
Total Revenue	40,094	55,393	83,178	160,253
Computing/Storage/Peripherals
Disaggregation Of Revenue [Line Items]
Total Revenue	95,127	110,201	176,208	199,048
Computing/Storage/Peripherals | Printed Circuit Board
Disaggregation Of Revenue [Line Items]
Total Revenue	95,127	109,633	176,019	198,175
Computing/Storage/Peripherals | E-M Solutions
Disaggregation Of Revenue [Line Items]
Total Revenue		568	189	873
Medical/Industrial/Instrumentation
Disaggregation Of Revenue [Line Items]
Total Revenue	97,112	106,560	192,949	207,717
Medical/Industrial/Instrumentation | Printed Circuit Board
Disaggregation Of Revenue [Line Items]
Total Revenue	87,471	96,704	175,141	190,338
Medical/Industrial/Instrumentation | E-M Solutions
Disaggregation Of Revenue [Line Items]
Total Revenue	9,641	9,856	17,808	17,379
Networking/Communications
Disaggregation Of Revenue [Line Items]
Total Revenue	105,863	123,955	217,265	225,365
Networking/Communications | Printed Circuit Board
Disaggregation Of Revenue [Line Items]
Total Revenue	79,937	99,353	168,000	181,290
Networking/Communications | E-M Solutions
Disaggregation Of Revenue [Line Items]
Total Revenue	25,926	24,602	49,265	44,075
Other
Disaggregation Of Revenue [Line Items]
Total Revenue	16,138	20,911	34,284	29,852
Other | Printed Circuit Board
Disaggregation Of Revenue [Line Items]
Total Revenue	16,143	20,404	34,375	28,894
Other | E-M Solutions
Disaggregation Of Revenue [Line Items]
Total Revenue	$ (5)	$ 507	$ (91)	$ 958

Schedule of Composition of Cert

Schedule of Composition of Certain Consolidated Condensed Financial Statement Captions (Detail) - USD ($) $ in Thousands	Jul. 01, 2019	Dec. 31, 2018
Inventories:
Raw materials	$ 102,974	$ 97,600
Work-in-process	13,083	10,299
Finished goods	6,092	1,478
Inventories	122,149	109,377
Property, plant and equipment, net:
Land and land use rights	74,850	75,431
Buildings and improvements	538,003	534,122
Machinery and equipment	1,398,905	1,357,035
Construction-in-progress, furniture and fixtures and other	57,946	42,713
Property, plant and equipment, gross	2,069,704	2,009,301
Less: Accumulated depreciation	(1,032,617)	(957,277)
Property, plant and equipment, net	$ 1,037,087	$ 1,052,024

Goodwill (Detail)

Goodwill (Detail) - USD ($) $ in Thousands	Jul. 01, 2019	Dec. 31, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill	$ 938,445	$ 938,445
Accumulated impairment losses	(171,400)	(171,400)
Goodwill, net	$ 767,045	$ 767,045

Definite-lived Intangibles (Det

Definite-lived Intangibles (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jul. 01, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Gross Amount	$ 454,500	$ 542,634
Accumulated Amortization	(109,029)	(166,711)
Net Carrying Amount	345,471	375,923
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Gross Amount	415,000	203,634
Accumulated Amortization	(103,324)	(123,522)
Net Carrying Amount	$ 311,676	$ 80,112
Weighted Average Amortization Period	10 years 8 months 12 days	8 years 1 month 6 days
Customer Relationships | Acquired Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Gross Amount		$ 267,500
Accumulated Amortization		(15,561)
Net Carrying Amount		$ 251,939
Weighted Average Amortization Period		12 years 2 months 12 days
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Amount	$ 39,500	$ 3,000
Accumulated Amortization	(5,705)	$ (3,000)
Net Carrying Amount	$ 33,795
Weighted Average Amortization Period	9 years 4 months 24 days	3 years
Developed Technology | Acquired Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Gross Amount		$ 39,500
Accumulated Amortization		(3,345)
Net Carrying Amount		$ 36,155
Weighted Average Amortization Period		9 years 4 months 24 days
Backlog | Acquired Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Gross Amount		$ 29,000
Accumulated Amortization		(21,283)
Net Carrying Amount		$ 7,717
Weighted Average Amortization Period		10 months 24 days

Definite-lived Intangibles - Ad

Definite-lived Intangibles - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2019	Jul. 02, 2018	Jul. 01, 2019	Jul. 02, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Amortization of definite-lived intangibles	$ 12,447	$ 19,489	$ 30,452	$ 25,350
Amortization of definite-lived intangibles included in cost of goods sold	$ 1,180		$ 2,359

Estimated Aggregate Amortizatio

Estimated Aggregate Amortization for Definite-Lived Intangible Assets (Detail) - USD ($) $ in Thousands	Jul. 01, 2019	Dec. 31, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Remaining 2019	$ 22,709
2020	45,419
2021	42,108
2022	39,002
2023	36,290
Thereafter	159,943
Net Carrying Amount	$ 345,471	$ 375,923

Long-term Debt (Detail)

Long-term Debt (Detail) - USD ($)	6 Months Ended	12 Months Ended
	Jul. 01, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Long-term debt, gross	$ 1,500,854,000	$ 1,530,864,000
Less: Long-term debt unamortized discount	(17,090,000)	(22,167,000)
Long-term debt unamortized debt issuance costs	(14,494,000)	(16,272,000)
Long-term debt, Carrying Amount	1,469,270,000	1,492,425,000
Less: current maturities		(30,000,000)
Long-term debt, less current maturities	1,469,270,000	1,462,425,000
1.75% Convertible Senior Notes due December 15, 2020
Debt Instrument [Line Items]
Long-term debt, gross	249,975,000	249,985,000
Less: Long-term debt unamortized discount	$ (14,880,000)	$ (19,678,000)
Debt instrument, interest rate	1.75%	1.75%
Term Loan Due September 2024
Debt Instrument [Line Items]
Long-term debt, gross	$ 805,879,000	$ 835,879,000
Less: Long-term debt unamortized discount	$ (2,210,000)	$ (2,489,000)
Interest rate at period end	4.89%	5.00%
Senior Notes Due October 2025
Debt Instrument [Line Items]
Long-term debt, gross	$ 375,000,000	$ 375,000,000
Debt instrument, interest rate	5.63%	5.63%
U.S. Asset Based Lending Revolving Loan Due June 2024
Debt Instrument [Line Items]
Revolving loan	$ 40,000,000	$ 40,000,000
Long-term debt unamortized debt issuance costs	$ (2,741,000)	$ (1,420,000)
Interest rate at period end	3.76%	4.00%
Asia Asset Based Lending Revolving Loan Due June 2024
Debt Instrument [Line Items]
Revolving loan	$ 30,000,000	$ 30,000,000
Interest rate at period end	3.79%	3.90%

Long-term Debt (Parenthetical)

Long-term Debt (Parenthetical) (Detail)	6 Months Ended
	Jul. 01, 2019
1.75% Convertible Senior Notes due December 15, 2020
Debt Instrument [Line Items]
Long-term debt, maturity month and year	2020-12
Term Loan Due September 2024
Debt Instrument [Line Items]
Long-term debt, maturity month and year	2024-09
Senior Notes Due October 2025
Debt Instrument [Line Items]
Long-term debt, maturity month and year	2025-10
U.S. Asset Based Lending Revolving Loan Due June 2024
Debt Instrument [Line Items]
Long-term debt, maturity month and year	2024-06
Asia Asset Based Lending Revolving Loan Due June 2024
Debt Instrument [Line Items]
Long-term debt, maturity month and year	2024-06

Long-term Debt and Letters of_3

Long-term Debt and Letters of Credit - Additional Information (Detail)	Apr. 18, 2018USD ($)	Jul. 31, 2019	Jul. 01, 2019USD ($)Tranche	Jul. 02, 2018USD ($)	Jul. 01, 2019USD ($)Tranche	Jul. 02, 2018USD ($)	Dec. 31, 2018USD ($)	Apr. 17, 2018USD ($)
Debt Instrument [Line Items]
Allocated portion of commitments from lenders closed	$ 600,000,000
Long-term debt, gross			$ 1,500,854,000		$ 1,500,854,000		$ 1,530,864,000
Line of credit unused portion of commitment fee			210,000	$ 247,000	450,000	$ 488,000
Remaining unamortized debt issuance costs			14,494,000		$ 14,494,000		16,272,000
Weighted Average
Debt Instrument [Line Items]
Unamortized debt discount and debt issuance costs, amortization period					3 years 7 months 6 days
Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, maximum borrowing capacity			150,000,000		$ 150,000,000
Revolving Credit Facility | CHINA
Debt Instrument [Line Items]
Debt instrument, maximum borrowing capacity			29,070,000		29,070,000
Line of credit unused portion of commitment fee					$ 0
Revolving Credit Facility | CHINA | Subsequent Event
Debt Instrument [Line Items]
Long-term debt, maturity month and year		2020-07
Letters of Credit Facility | Maximum
Debt Instrument [Line Items]
Letters of credit outstanding under U.S. ABL and Asia ABL, expiration period					2020-05
Senior Notes Due October 2025
Debt Instrument [Line Items]
Debt instrument amount			$ 375,000,000		$ 375,000,000
Long-term debt, maturity date					Oct. 1, 2025
Debt instrument, interest rate			5.63%		5.63%
1.75% Convertible Senior Notes due December 15, 2020
Debt Instrument [Line Items]
Long-term debt, gross			$ 249,975,000		$ 249,975,000		$ 249,985,000
Long-term debt, maturity date					Dec. 15, 2020
Debt instrument, interest rate			1.75%		1.75%		1.75%
Long-term debt, maturity month and year					2020-12
Term Loan Due September 2024
Debt Instrument [Line Items]
Debt instrument amount	$ 948,250,000							$ 348,250,000
Long-term debt, gross			$ 805,879,000		$ 805,879,000		$ 835,879,000
Interest rate at period end					4.89%		5.00%
Long-term debt, maturity date					Sep. 28, 2024
Debt instrument, percentage of voting stock pledged as security					65.00%
Secured leverage ratio, limit			2		2
Long-term debt, maturity month and year					2024-09
Term Loan Due September 2024 | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument, weighted average discount percentage	99.70%
Debt instrument, basis spread on variable rate	2.50%
Term Loan Due September 2024 | Alternate Base Rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	1.50%
Base rate description					as defined in the Term Loan Credit Agreement
U.S. Asset Based Lending Revolving Loan Due June 2024
Debt Instrument [Line Items]
Interest rate at period end					3.76%		4.00%
Long-term debt, maturity date					Jun. 3, 2024
Debt instrument, percentage of voting stock pledged as security					65.00%
Debt instrument, maximum borrowing capacity			$ 150,000,000		$ 150,000,000
Long-term debt, maturity month and year					2024-06
Debt instrument, incremental facility					$ 100,000,000
Number of tranches | Tranche			2		2
Long-term debt			$ 40,000,000		$ 40,000,000
Commitment fee under credit agreement					0.25%
Remaining unamortized debt issuance costs			2,741,000		$ 2,741,000		$ 1,420,000
U.S. Asset Based Lending Revolving Loan Due June 2024 | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, maximum borrowing capacity			150,000,000		150,000,000
U.S. Asset Based Lending Revolving Loan Due June 2024 | Letters of Credit Facility
Debt Instrument [Line Items]
Debt instrument, maximum borrowing capacity			50,000,000		50,000,000
Letter of credit outstanding			15,287,000		15,287,000
Debt instrument, available borrowing capacity			$ 94,713,000		$ 94,713,000
U.S. Asset Based Lending Revolving Loan Due June 2024 | London Interbank Offered Rate (LIBOR) | Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					1.25%
U.S. Asset Based Lending Revolving Loan Due June 2024 | London Interbank Offered Rate (LIBOR) | Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					1.50%
U.S. Asset Based Lending Revolving Loan Due June 2024 | London Interbank Offered Rate (LIBOR) | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					1.38%
U.S. Asset Based Lending Revolving Loan Due June 2024 | Alternate Base Rate | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					0.38%
Base rate description					defined as the greater of the prime rate, the New York Fed bank rate plus 0.5% or LIBOR plus 1.0%
U.S. Asset Based Lending Revolving Loan Due June 2024 | Alternate Base Rate | Revolving Credit Facility | Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					0.01%
U.S. Asset Based Lending Revolving Loan Due June 2024 | Alternate Base Rate New York Fed Bank Rate | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					0.005%
U.S. Asset Based Lending Revolving Loan Due June 2024 | Alternate Base Rate, LIBOR Rate | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					0.01%
U.S. Asset Based Lending Revolving Loan Due June 2024 | Prime Rate | Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					0.25%
U.S. Asset Based Lending Revolving Loan Due June 2024 | Prime Rate | Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					0.50%
Asia Asset Based Lending Revolving Loan Due June 2024
Debt Instrument [Line Items]
Interest rate at period end					3.79%
Long-term debt, maturity date					Jun. 4, 2024
Long-term debt, maturity month and year					2024-06
Debt instrument, incremental facility					$ 50,000,000
Number of tranches | Tranche			2		2
Long-term debt			$ 30,000,000		$ 30,000,000
Asia Asset Based Lending Revolving Loan Due June 2024 | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, maximum borrowing capacity			150,000,000		150,000,000
Asia Asset Based Lending Revolving Loan Due June 2024 | Letters of Credit Facility
Debt Instrument [Line Items]
Debt instrument, maximum borrowing capacity			100,000,000		$ 100,000,000
Asia Asset Based Lending Revolving Loan Due June 2024 | London Interbank Offered Rate (LIBOR) | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					1.40%
Asia Asset Based Lending Revolving Loan Due June 2024
Debt Instrument [Line Items]
Interest rate at period end					3.79%		3.90%
Long-term debt, maturity month and year					2024-06
Commitment fee under credit agreement					0.28%
Asia Asset Based Lending Revolving Loan Due June 2024 | Letters of Credit Facility
Debt Instrument [Line Items]
Debt instrument, maximum borrowing capacity			100,000,000		$ 100,000,000
Letter of credit outstanding			22,718,000		22,718,000
Debt instrument, available borrowing capacity			$ 97,282,000		$ 97,282,000

Schedule of Liability and Equit

Schedule of Liability and Equity Components of Convertible Senior Notes Included in Additional Paid-in Capital (Detail) - 1.75% Convertible Senior Notes due December 15, 2020 - USD ($) $ in Thousands	Jul. 01, 2019	Dec. 31, 2018
Schedule of Convertible Notes [Line Items]
Embedded conversion option — Convertible Senior Notes	$ 60,213	$ 60,216
Embedded conversion option — Convertible Senior Notes Issuance Costs	(1,916)	(1,916)
Total	$ 58,297	$ 58,300

Components of Interest Expense

Components of Interest Expense from Convertible Senior Notes (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2019	Jul. 02, 2018	Jul. 01, 2019	Jul. 02, 2018
Debt Disclosure [Abstract]
Contractual coupon interest	$ 1,093	$ 1,093	$ 2,187	$ 2,187
Amortization of debt discount	2,418	2,267	4,797	4,497
Amortization of debt issuance costs	$ 243	$ 227	$ 481	$ 451

Long-term Debt and Letters of_4

Long-term Debt and Letters of Credit - Schedule of Remaining Unamortized Debt Discount and Debt Issuance Costs (Detail) - USD ($) $ in Thousands	Jul. 01, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Debt Issuance Costs	$ 14,494	$ 16,272
Debt Discount	17,090	22,167
1.75% Convertible Senior Notes due December 15, 2020
Debt Instrument [Line Items]
Debt Issuance Costs	1,491	1,972
Debt Discount	$ 14,880	$ 19,678
Effective Interest Rate	6.48%	6.48%
Term Loan Due September 2024
Debt Instrument [Line Items]
Debt Issuance Costs	$ 7,303	$ 8,229
Debt Discount	$ 2,210	$ 2,489
Effective Interest Rate	4.66%	4.66%
Senior Notes Due October 2025
Debt Instrument [Line Items]
Debt Issuance Costs	$ 5,700	$ 6,071
Effective Interest Rate	5.92%	5.92%

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail)	3 Months Ended	6 Months Ended
	Jul. 01, 2019USD ($)	Jul. 01, 2019USD ($)
Income Tax Disclosure [Abstract]
Effective tax rate impacted by net discrete tax benefit	$ 2,946,000	$ 3,288,000
Change in valuation allowance		0
Tax on undistributed earnings	0	0
Deferred tax liabilities	$ 0	$ 0

Financial Instruments - Additio

Financial Instruments - Additional Information (Detail) - USD ($)	May 15, 2018	Jul. 01, 2019	Jul. 02, 2018	Jul. 01, 2019	Jul. 02, 2018	Dec. 31, 2018
Derivative [Line Items]
Accumulated other comprehensive income (loss) will be reclassified into the statement of operations, net of tax, in the next 12 months				$ (2,956,000)
Interest Rate Swap
Derivative [Line Items]
Interest rate derivatives, at fair value, net	$ 0
Derivative, ineffectiveness		$ 0	$ 0	0	$ 0
Interest Rate Swap | Other Long-term Liabilities
Derivative [Line Items]
Interest rate derivative liability, at fair value		12,693,000		12,693,000
Interest Rate Swap | Interest expense
Derivative [Line Items]
Derivative instrument, increased interest expense		367,000	$ 303,000	706,000	$ 303,000
Foreign Exchange Contracts
Derivative [Line Items]
Derivative, notional amount		$ 1,608,000		$ 1,608,000		$ 4,313,000
1-Month LIBOR | Interest Rate Swap
Derivative [Line Items]
Derivative, maturity period	4 years
Derivative, notional amount	$ 400,000,000
Derivative, expiration date	Jun. 1, 2022
Derivative, fixed rate	2.84%

Summary of Fair Values of Deriv

Summary of Fair Values of Derivative Instruments in Consolidated Balance Sheets (Detail) - USD ($) $ in Thousands	Jul. 01, 2019	Dec. 31, 2018
Prepaid Expenses and Other Current Assets | Foreign Exchange Contracts
Cash flow derivative instruments designated as hedges:
Cash flow derivative instruments designated as hedges, asset fair value	$ 40
Other Long-term Liabilities | Interest Rate Swap
Cash flow derivative instruments designated as hedges:
Cash flow derivative instruments designated as hedges, liability fair value	$ (12,693)	$ (4,735)
Other Current Liabilities | Foreign Exchange Contracts
Cash flow derivative instruments not designated as hedges:
Cash flow derivative instruments not designated as hedges, liability fair value		$ (139)

Summary of Accumulated Other Co

Summary of Accumulated Other Comprehensive Loss Related to Derivatives Designated as Cash Flow Hedges (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2019	Jul. 02, 2018	Jul. 01, 2019	Jul. 02, 2018
Derivative Instruments Gain Loss [Line Items]
Loss Recognized in Other Comprehensive Income	$ (4,503)	$ (1,739)	$ (6,331)	$ (1,745)
Interest Rate Swap | Interest expense
Derivative Instruments Gain Loss [Line Items]
Loss Recognized in Other Comprehensive Income	(6,077)	(1,719)	(8,663)	(1,719)
Loss Reclassified into Income	(367)	(303)	(706)	(303)
Foreign currency forward | Depreciation expense
Derivative Instruments Gain Loss [Line Items]
Loss Recognized in Other Comprehensive Income	(5)	(20)	(5)	(26)
Loss Reclassified into Income	$ (39)	$ (39)	$ (78)	$ (80)

Summary of Activity of Designat

Summary of Activity of Designated Cash Flow Hedges in Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jul. 01, 2019	Jul. 02, 2018
Derivative [Line Items]
Beginning balance	$ 1,227,087	$ 1,011,380
Ending balance	1,229,077	1,141,293
Gains (Losses) on Cash Flow Hedges
Derivative [Line Items]
Beginning balance	(4,214)	(742)
Changes in fair value loss, net of tax	(6,331)	(1,745)
Reclassification to earnings	574	383
Ending balance	$ (9,971)	$ (2,104)

Summary of Net Gain (Loss) Reco

Summary of Net Gain (Loss) Recognized in Other, Net in Consolidated Statement of Operation on Derivative Instruments Not Designated as Hedges (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2019	Jul. 02, 2018	Jul. 01, 2019	Jul. 02, 2018
Foreign Exchange Contracts
Derivative [Line Items]
Derivative instruments not designated as hedges	$ 45	$ (324)	$ 49	$ 103

Schedule of Accumulated Other C

Schedule of Accumulated Other Comprehensive Loss, Net of Tax (Detail) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jul. 01, 2019	Apr. 01, 2019	Jul. 02, 2018	Apr. 02, 2018	Jul. 01, 2019	Jul. 02, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ 1,226,859	$ 1,227,087	$ 1,054,330	$ 1,011,380	$ 1,227,087	$ 1,011,380
Other comprehensive loss, net of tax	(4,808)	(901)	(3,098)	657	(5,709)	(2,441)
Ending balance	1,229,077	1,226,859	1,141,293	1,054,330	1,229,077	1,141,293
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance		1,578			1,578
Other comprehensive loss before reclassifications					29
Other comprehensive loss, net of tax					29
Ending balance	1,607				1,607
Pension Obligation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance		(1,284)			(1,284)
Other comprehensive loss before reclassifications					19
Other comprehensive loss, net of tax					19
Ending balance	(1,265)				(1,265)
Gains (Losses) on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance		(4,214)		(742)	(4,214)	(742)
Other comprehensive loss before reclassifications					(6,331)	(1,745)
Amounts reclassified from accumulated other comprehensive income					574	383
Other comprehensive loss, net of tax					(5,757)
Ending balance	(9,971)		(2,104)		(9,971)	(2,104)
Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(4,821)	(3,920)	4,060	3,403	(3,920)	3,403
Other comprehensive loss before reclassifications					(6,283)
Amounts reclassified from accumulated other comprehensive income					574
Other comprehensive loss, net of tax	(4,808)	(901)	(3,098)	657	(5,709)
Ending balance	$ (9,629)	$ (4,821)	$ 962	$ 4,060	$ (9,629)	$ 962

Significant Customers and Con_2

Significant Customers and Concentration of Credit Risk - Additional Information (Detail) - Customer	3 Months Ended		6 Months Ended
	Jul. 01, 2019	Jul. 02, 2018	Jul. 01, 2019	Jul. 02, 2018
Concentration Risk [Line Items]
Number of customers contributing to more than ten percent of revenue	1	0	0	1
Net Sales | Customer Concentration Risk
Concentration Risk [Line Items]
Percentage of net sales, accounted by one customer	10.00%			12.00%

Carrying Amount and Estimated F

Carrying Amount and Estimated Fair Value of Financial Instruments (Detail) - USD ($) $ in Thousands	Jul. 01, 2019	Dec. 31, 2018
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative liabilities, current		$ 139
Derivative liabilities, non-current	$ 12,693	4,735
Carrying Amount | 1.75% Convertible Senior Notes due December 15, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	233,604	228,335
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative liabilities, current		139
Derivative liabilities, non-current	12,693	4,735
Fair Value | 1.75% Convertible Senior Notes due December 15, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	293,571	290,858
Term Loan Due September 2024 | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	796,366	825,161
Term Loan Due September 2024 | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	798,828	782,592
Senior Notes Due October 2025 | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	369,300	368,929
Senior Notes Due October 2025 | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	369,274	350,880
ABL Revolving Loans | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	70,000	70,000
ABL Revolving Loans | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	$ 70,000	$ 70,000

Fair Value Measures - Additiona

Fair Value Measures - Additional Information (Detail) - USD ($) $ in Thousands	Jul. 01, 2019	Dec. 31, 2018	Jul. 02, 2018	Jan. 01, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 284,466	$ 256,360	$ 204,100	$ 409,326
Domestic Subsidiaries
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	79,661
Foreign Subsidiaries
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 204,805

Reconciliation of Numerator and

Reconciliation of Numerator and Denominator Used to Calculate Basic Earnings per Share and Diluted Earnings per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jul. 01, 2019	Apr. 01, 2019	Jul. 02, 2018	Apr. 02, 2018	Jul. 01, 2019	Jul. 02, 2018
Basic earnings:
Basic earnings	$ 3,424		$ 84,004		$ 172	$ 94,101
Diluted earnings:
Net income	3,424	$ (3,252)	84,004	$ 10,097	172	94,101
Interest expense from Convertible Senior Notes, net of tax			3,587			7,135
Diluted earnings	$ 3,424		$ 87,591		$ 172	$ 101,236
Basic weighted average shares	105,470		103,553		104,893	103,030
Dilutive effect of performance-based restricted stock units, restricted stock units and stock options	637		1,376		967	1,603
Dilutive effect of outstanding warrants			3,854			3,517
Dilutive effect of assumed conversion of Convertible Senior Notes outstanding			25,938			25,938
Diluted shares	106,107		134,721		105,860	134,088
Earnings per share:
Basic	$ 0.03		$ 0.81		$ 0	$ 0.91
Diluted	$ 0.03		$ 0.65		$ 0	$ 0.75

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Detail) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2019	Jul. 02, 2018	Jul. 01, 2019	Jul. 02, 2018
Performance-Based Restricted Stock Units (PRUs), Restricted Stock Units (RSUs) and Stock options
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Shares excluded from calculating diluted earnings per share	1,089	45	1,089	488

Amounts Recognized in Consolida

Amounts Recognized in Consolidated Financial Statements of Operations with Respect to Stock Based Compensation Plan (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2019	Jul. 02, 2018	Jul. 01, 2019	Jul. 02, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	$ 3,602	$ 5,867	$ 7,528	$ 9,489
Cost of goods sold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	570	829	1,275	1,358
Selling and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	396	545	862	919
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	$ 2,636	$ 4,493	$ 5,391	$ 7,212

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail) shares in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2019$ / sharesshares	Jul. 02, 2018$ / sharesshares	Jul. 01, 2019Time$ / sharesshares		Jul. 02, 2018$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option granted | shares	0	20	0		20
Weighted average fair value of stock options granted | $ / shares		$ 8.92			$ 8.92
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of times common stock released at end of the period exceeds the target number | Time			0
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of times common stock released at end of the period exceeds the target number | Time			2.4
Performance-Based Restricted Stock Units (PRUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted | shares			293
Weighted Average Grant-Date Fair Value Granted | $ / shares			$ 10.17	[1]	$ 19.59	[2]
Risk-free interest rate			2.18%	[1]	2.14%	[2]
Expected volatility			38.00%	[1]	40.00%	[2]
Expected term in years			1 year 9 months 18 days	[1]	1 year 6 months	[2]
Performance-Based Restricted Stock Units (PRUs) | Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options vesting period (in years)			3 years
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted | shares	1,599	195	1,601		1,023
Weighted Average Grant-Date Fair Value Granted | $ / shares	$ 10.04	$ 16.06	$ 10.04		$ 15.44
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate		3.00%			3.00%
Expected volatility		43.00%			43.00%
Expected term in years		8 years 6 months			8 years 6 months
Dividend yield		0.00%			0.00%
[1]	Reflects the weighted-averages for the third year of the three-year performance period applicable to PRUs granted in 2017 and second year of the three-year performance period applicable to PRUs granted in 2018 and first year of the three-year performance period applicable to PRUs granted in 2019.
[2]	Reflects the weighted-averages for the third year of the three-year performance period applicable to PRUs granted in 2016, second year of the three-year performance period applicable to PRUs granted in 2017 and first year of the three-year performance period applicable to PRUs granted in 2018.

Performance-Based Restricted St

Performance-Based Restricted Stock Units Activity (Detail) - Performance-Based Restricted Stock Units (PRUs) - $ / shares shares in Thousands	6 Months Ended
	Jul. 01, 2019		Jul. 02, 2018	[2]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding shares as of December 31, 2018	255
Granted	293
Change in units due to annual performance achievement	(51)
Forfeited / cancelled	(6)
Outstanding shares as of July 1, 2019	491
Weighted Average Grant-Date Fair Value
Outstanding shares as of December 31, 2018	$ 18.75
Granted	10.17	[1]	$ 19.59
Change in units due to annual performance achievement	10.15
Forfeited / cancelled	15.18
Outstanding shares as of July 1, 2019	$ 14.57
[1]	Reflects the weighted-averages for the third year of the three-year performance period applicable to PRUs granted in 2017 and second year of the three-year performance period applicable to PRUs granted in 2018 and first year of the three-year performance period applicable to PRUs granted in 2019.
[2]	Reflects the weighted-averages for the third year of the three-year performance period applicable to PRUs granted in 2016, second year of the three-year performance period applicable to PRUs granted in 2017 and first year of the three-year performance period applicable to PRUs granted in 2018.

Assumptions Used in Determining

Assumptions Used in Determining Fair Value (Detail) - Performance-Based Restricted Stock Units (PRUs) - $ / shares	6 Months Ended
	Jul. 01, 2019	[1]	Jul. 02, 2018	[2]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value	$ 10.17		$ 19.59
Risk-free interest rate	2.18%		2.14%
Expected volatility	38.00%		40.00%
Expected term in years	1 year 9 months 18 days		1 year 6 months
[1]	Reflects the weighted-averages for the third year of the three-year performance period applicable to PRUs granted in 2017 and second year of the three-year performance period applicable to PRUs granted in 2018 and first year of the three-year performance period applicable to PRUs granted in 2019.
[2]	Reflects the weighted-averages for the third year of the three-year performance period applicable to PRUs granted in 2016, second year of the three-year performance period applicable to PRUs granted in 2017 and first year of the three-year performance period applicable to PRUs granted in 2018.

Summary of Unrecognized Compens

Summary of Unrecognized Compensation Costs (Detail) $ in Thousands	6 Months Ended
	Jul. 02, 2018USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Stock-Based Compensation Cost	$ 30,628
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Stock-Based Compensation Cost	$ 27,002
Remaining Weighted Average Recognition Period (years)	1 year 7 months 6 days
Performance-Based Restricted Stock Units (PRUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Stock-Based Compensation Cost	$ 3,326
Remaining Weighted Average Recognition Period (years)	1 year 3 months 18 days
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Stock-Based Compensation Cost	$ 300
Remaining Weighted Average Recognition Period (years)	1 year 10 months 24 days

Segment Information - Additiona

Segment Information - Additional Information (Detail)	6 Months Ended
	Jul. 01, 2019Segment
Segment Reporting [Abstract]
Number of reportable segments	2

Reconciliation of Operating Inc

Reconciliation of Operating Income (Loss) from Segments to Consolidated By Reportable Segments (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2019	Jul. 02, 2018	Jul. 01, 2019	Jul. 02, 2018
Segment Reporting Information [Line Items]
Net sales	$ 633,038	$ 716,887	$ 1,253,238	$ 1,380,469
Operating income (loss)	16,844	31,734	34,334	61,735
Amortization of definite-lived intangibles	(12,447)	(19,489)	(30,452)	(25,350)
Total other expense, net	(16,250)	(14,275)	(38,468)	(29,129)
Income (loss) before income taxes	594	17,459	(4,134)	32,606
Printed Circuit Board
Segment Reporting Information [Line Items]
Net sales	573,121	655,045	1,141,943	1,271,476
E-M Solutions
Segment Reporting Information [Line Items]
Net sales	59,917	61,842	111,295	108,993
Operating Segment
Segment Reporting Information [Line Items]
Operating income (loss)	29,291	51,223	64,786	87,085
Operating Segment | Printed Circuit Board
Segment Reporting Information [Line Items]
Net sales	573,121	655,045	1,141,943	1,271,476
Operating income (loss)	50,989	80,964	109,531	144,428
Operating Segment | E-M Solutions
Segment Reporting Information [Line Items]
Net sales	59,917	61,842	111,295	108,993
Operating income (loss)	863	2,496	2,042	2,536
Corporate
Segment Reporting Information [Line Items]
Operating income (loss)	$ (22,561)	$ (32,237)	$ (46,787)	$ (59,879)

Reconciliation of Operating I_2

Reconciliation of Operating Income (Loss) from Segments to Consolidated By Reportable Segments (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jul. 01, 2019	Jul. 01, 2019
Segment Reporting Information [Line Items]
Amortization of definite-lived intangibles included in cost of goods sold	$ 1,180	$ 2,359
Printed Circuit Board
Segment Reporting Information [Line Items]
Amortization of definite-lived intangibles included in cost of goods sold	$ 1,180	$ 2,359

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2019	Jul. 02, 2018	Jul. 01, 2019	Jul. 02, 2018	Dec. 31, 2018
Related Party Transaction [Line Items]
Accounts payable due to related parties	$ 10,537		$ 10,537		$ 10,630
Foreign Subsidiaries
Related Party Transaction [Line Items]
Purchases from related party	$ 8,917	$ 12,550	$ 17,229	$ 25,258

Summary of Restructuring Costs

Summary of Restructuring Costs (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jul. 01, 2019	Jul. 01, 2019
Reportable Segment:
Restructuring charges	$ 3,944	$ 4,389
Employee Separation/ Severance
Reportable Segment:
Restructuring charges	3,936	4,373
Contract Termination and Other Costs
Reportable Segment:
Restructuring charges	8	16
Operating Segment | Printed Circuit Board
Reportable Segment:
Restructuring charges	3,776	4,213
Operating Segment | Employee Separation/ Severance | Printed Circuit Board
Reportable Segment:
Restructuring charges	3,776	4,213
Corporate
Reportable Segment:
Restructuring charges	168	176
Corporate | Employee Separation/ Severance
Reportable Segment:
Restructuring charges	160	160
Corporate | Contract Termination and Other Costs
Reportable Segment:
Restructuring charges	$ 8	$ 16

Accrued Restructuring Costs (De

Accrued Restructuring Costs (Detail) $ in Thousands	6 Months Ended
	Jul. 01, 2019USD ($)
Restructuring Cost and Reserve [Line Items]
Beginning balance	$ 3,551
Charged to expense	4,389
Amount paid	(3,912)
Ending balance	4,028
Employee Separation/ Severance
Restructuring Cost and Reserve [Line Items]
Beginning balance	3,158
Charged to expense	4,373
Amount paid	(3,851)
Ending balance	3,680
Contract Termination and Other Costs
Restructuring Cost and Reserve [Line Items]
Beginning balance	393
Charged to expense	16
Amount paid	(61)
Ending balance	$ 348