TTM (TTMI) 10-Q 9 May 19 2019 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Apr. 01, 2019	May 06, 2019
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Apr. 1, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
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		105,461,294

Consolidated Condensed Balance

Consolidated Condensed Balance Sheets - USD ($) $ in Thousands	Apr. 01, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 235,219	$ 256,360
Accounts receivable, net	516,828	523,165
Contract assets	263,073	287,741
Inventories	114,800	109,377
Prepaid expenses and other current assets	39,629	30,271
Total current assets	1,169,549	1,206,914
Property, plant and equipment, net	1,037,696	1,052,024
Operating lease right-of-use assets	21,631
Goodwill	767,045	767,045
Definite-lived intangibles, net	357,918	375,923
Deposits and other non-current assets	60,446	55,597
Assets, Total	3,414,285	3,457,503
Current liabilities:
Short-term debt, including current portion of long-term debt		30,000
Accounts payable	424,291	431,288
Contract liabilities	2,387	3,220
Accrued salaries, wages and benefits	79,018	94,950
Other	102,036	113,756
Total current liabilities	607,732	673,214
Long-term debt, net of discount and issuance costs	1,466,010	1,462,425
Operating lease liabilities	14,598
Other long-term liabilities	99,086	94,777
Total long-term liabilities	1,579,694	1,557,202
Commitments and contingencies (Note 14)
Equity:
Common stock, $0.001 par value; 300,000 shares authorized, 105,421 and 103,687 shares issued and outstanding at April 1, 2019 and December 31, 2018, respectively	105	104
Additional paid-in capital	801,819	797,895
Retained earnings	429,756	433,008
Accumulated other comprehensive loss	(4,821)	(3,920)
Total stockholders’ equity	1,226,859	1,227,087
Liabilities and Equity, Total	$ 3,414,285	$ 3,457,503

Consolidated Condensed Balanc_2

Consolidated Condensed Balance Sheets (Parenthetical) - $ / shares	Apr. 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	105,421,000	103,687,000
Common stock, shares outstanding	105,421,000	103,687,000

Consolidated Condensed Statemen

Consolidated Condensed Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2019	Apr. 02, 2018
Income Statement [Abstract]
Net sales	$ 620,200	$ 663,582
Cost of goods sold	531,515	574,904
Gross profit	88,685	88,678
Operating expenses:
Selling and marketing	18,901	17,628
General and administrative	35,468	35,188
Amortization of definite-lived intangibles	16,826	5,861
Total operating expenses	71,195	58,677
Operating income	17,490	30,001
Other income (expense):
Interest expense	(21,688)	(13,747)
Other, net	(530)	(1,107)
Total other expense, net	(22,218)	(14,854)
(Loss) income before income taxes	(4,728)	15,147
Income tax benefit (provision)	1,476	(5,050)
Net (loss) income	$ (3,252)	$ 10,097
(Loss) earnings per share:
Basic (loss) earnings per share	$ (0.03)	$ 0.10
Diluted (loss) earnings per share	$ (0.03)	$ 0.09

Consolidated Condensed Statem_2

Consolidated Condensed Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2019	Apr. 02, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net (loss) income	$ (3,252)	$ 10,097
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments, net	630	622
Pension obligation adjustments, net	19
Net unrealized gains (losses) on cash flow hedges:
Unrealized loss on effective cash flow hedges during the period, net	(1,828)	(6)
Loss realized in the statement of operations	278	41
Net	(1,550)	35
Other comprehensive (loss) income, net of tax	(901)	657
Comprehensive (loss) income, net of tax	$ (4,153)	$ 10,754

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 | New Revenue Standard	28,574			28,574
Net (loss) income	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 Dec. 31, 2018	1,227,087	$ 104	797,895	433,008	(3,920)
Beginning balance (in shares) at Dec. 31, 2018		103,687
Net (loss) income	(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

Consolidated Condensed Statem_4

Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2019	Apr. 02, 2018
Cash flows from operating activities:
Net (loss) income	$ (3,252)	$ 10,097
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of property, plant and equipment	41,602	39,775
Amortization of definite-lived intangible assets	18,005	5,861
Amortization of debt discount and issuance costs	3,845	3,029
Deferred income taxes	(1,262)
Stock-based compensation	3,926	3,622
Other	(4,346)	(439)
Changes in operating assets and liabilities:
Accounts receivable, net	6,337	(12,840)
Contract assets	24,668	(14,368)
Inventories	(5,423)	(11,104)
Prepaid expenses and other current assets	(8,599)	1,015
Accounts payable	(5,976)	8,657
Contract liabilities	(833)
Accrued salaries, wages and benefits and other current liabilities	(31,768)	(47,566)
Net cash provided by (used in) operating activities	36,924	(14,261)
Cash flows from investing activities:
Purchase of property, plant and equipment and equipment deposits	(33,483)	(42,192)
Proceeds from sale of property, plant and equipment and other assets	5,037	53
Net cash used in investing activities	(28,446)	(42,139)
Cash flows from financing activities:
Repayment of long-term debt borrowing	(30,000)	(875)
Redemption of convertible notes	(10)
Net cash used in financing activities	(30,010)	(875)
Effect of foreign currency exchange rates on cash and cash equivalents	391	525
Net decrease in cash and cash equivalents	(21,141)	(56,750)
Cash and cash equivalents at beginning of period	256,360	409,326
Cash and cash equivalents at end of period	235,219	352,576
Supplemental cash flow information:
Cash paid, net for interest	25,840	15,310
Cash paid, net for income taxes	9,575	14,493
Noncash transactions:
Property, plant and equipment recorded in accounts payable	$ 48,148	$ 65,927

Nature of Operations and Summar

Nature of Operations and Summary of Significant Accounting Policies	3 Months Ended
	Apr. 01, 2019
Accounting Policies [Abstract]
Nature of Operations and Summary of Significant Accounting Policies	(1) Nature of Operations and Summary of Significant Accounting Policies 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 statement of stockholders’ equity. Summary of Significant Accounting Policies Leases The Company determines if an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use (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. 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 balance sheet at December 31, 2018 and the consolidated condensed statement of operations for the quarter ended April 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 at December 31, 2018 New Lease Standard Adjustment Balance at January 1, 2019 (In thousands) Balance Sheet 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 or the consolidated condensed statement of cash flows for the quarter ended April 1, 2019. See Note 4 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

Revenues

Revenues	3 Months Ended
	Apr. 01, 2019
Revenue From Contract With Customer [Abstract]
Revenues	(2) Revenues As of April 1, 2019, the aggregate amount of the transaction price allocated to remaining performance obligations for long-term contracts was $20,601. The Company expects to recognize revenue on approximately 85% 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%, respectively of the Company’s revenue for the quarter ended April 1, 2019. The following tables represent a disaggregation of revenue by principal end markets with the reportable segments: Quarter ended April 1, 2019 PCB E-M Solutions Total End Markets (In thousands) Aerospace and Defense $ 165,068 $ 4 $ 165,072 Automotive 85,813 19,765 105,578 Cellular Phone 43,084 — 43,084 Computing/Storage/Peripherals 80,892 189 81,081 Medical/Industrial/Instrumentation 87,670 8,167 95,837 Networking/Communications 88,063 23,339 111,402 Other 18,232 (86 ) 18,146 Total $ 568,822 $ 51,378 $ 620,200 Quarter ended April 2, 2018 PCB E-M Solutions Total End Markets (In thousands) Aerospace and Defense $ 122,676 $ 89 $ 122,765 Automotive 116,292 19,310 135,602 Cellular Phone 104,860 — 104,860 Computing/Storage/Peripherals 88,542 305 88,847 Medical/Industrial/Instrumentation 93,634 7,523 101,157 Networking/Communications 81,937 19,473 101,410 Other 8,490 451 8,941 Total $ 616,431 $ 47,151 $ 663,582

Acquisition of Anaren Inc.

Acquisition of Anaren Inc.	3 Months Ended
	Apr. 01, 2019
Business Combinations [Abstract]
Acquisition of Anaren Inc.	(3) Acquisition of Anaren Inc. On April 18, 2018, the Company acquired all of the equity interests of Anaren Bank fees and legal, accounting, and other professional service costs associated with the acquisition of Anaren of $203 The following summarizes the components of the purchase price: (In thousands) Cash consideration $ 596,396 Cash purchased 12,911 609,307 Debt assumed 178,604 Total consideration $ 787,911 The purchase price of the Anaren acquisition was allocated to tangible and intangible assets acquired, and liabilities assumed based on the fair value at the date of the acquisition, April 18, 2018. The excess of the purchase price over the fair value of net assets acquired was allocated to goodwill. The fair value assigned to identifiable intangible assets acquired was based on estimates and assumptions made by management at the time of the acquisition. The Company finalized the allocation of the purchase price during the fourth quarter of 2018. The fair values assigned are based on reasonable methods applicable to the nature of the assets acquired and liabilities assumed. The following summarizes the final estimated fair values of net assets acquired: (In thousands) Cash $ 12,911 Trade and notes receivables 32,457 Contract assets 23,585 Inventories 56,619 Other current assets 1,373 Property, plant and equipment 45,115 Identifiable intangible assets 336,000 Other assets 300 Goodwill 394,474 Trade accounts payable (14,623 ) Contract liabilities (7,778 ) Other current liabilities (7,616 ) Long-term debt (178,604 ) Non-current deferred tax liabilities (76,470 ) Other liabilities (8,436 ) Total $ 609,307 Goodwill represents the excess of the purchase price over the fair value of assets acquired and liabilities assumed. The goodwill acquired in the acquisition is not deductible for income tax purposes. Pro forma Financial Information The unaudited pro forma financial information below gives effect to this acquisition as if it had occurred at the beginning of fiscal 2018, or January 2, 2018. The pro forma financial information presented includes the effects of adjustments related to the amortization of acquired identifiable intangible assets and acquired inventory, depreciation of acquired fixed assets, and other non-recurring transactions costs directly associated with the acquisitions such as legal, accounting and banking fees. The pro forma financial information as presented below is for informational purposes only and is not necessarily indicative of the actual results that would have been achieved had the acquisition occurred at the beginning of the earliest period presented, or the results that may be achieved in future periods. Quarter Ended April 1, April 2, 2019 2018 (In thousands) Net sales $ 620,200 $ 726,844 Net (loss) income (3,252 ) 12,526 Basic (loss) earnings per share $ (0.03 ) $ 0.12 Dilutive (loss) earnings per share $ (0.03 ) $ 0.12

Leases

Leases	3 Months Ended
	Apr. 01, 2019
Leases [Abstract]
Leases	(4) 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 April 1, 2019 (In thousands) Operating lease cost $ 2,231 Variable lease cost 191 Short-term lease cost 151 Supplemental cash flow information related to leases was as follows: Quarter Ended April 1, 2019 (In thousands) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 1,870 Right-of-use assets obtained in exchange for new lease obligations: Operating leases 6,789 Supplemental balance sheet information related to leases was as follows: As of April 1, 2019 (In thousands) Operating lease right-of-use assets $ 21,631 Other current liabilities 7,405 Operating lease liabilities 14,598 Total operating lease liabilities $ 22,003 Weighted average remaining lease term 3.8 years Weighted average discount rate 4.10 % Maturities of operating lease liabilities were as follows 1 (In thousands) Less than one year $ 8,131 1 - 2 years 6,246 2 - 3 years 4,869 3 - 4 years 1,731 4 - 5 years 1,300 Thereafter 1,539 Total lease payments 23,816 Less imputed interest (1,813 ) Total $ 22,003 1 Operating Leases Pre-Topic 842 Adoption The Company leases some of its manufacturing and assembly plants, sales offices and equipment under noncancellable operating leases that expire at various dates through 2049. Certain real property 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 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

Composition of Certain Consolid

Composition of Certain Consolidated Condensed Financial Statement Captions	3 Months Ended
	Apr. 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 April 1, 2019 December 31, 2018 (in thousands) Inventories: Raw materials $ 101,002 $ 97,600 Work-in-process 11,623 10,299 Finished goods 2,175 1,478 $ 114,800 $ 109,377 Property, plant and equipment, net: Land and land use rights $ 74,850 $ 75,431 Buildings and improvements 536,038 534,122 Machinery and equipment 1,381,549 1,357,035 Construction-in-progress, furniture and fixtures and other 40,446 42,713 2,032,883 2,009,301 Less: Accumulated depreciation (995,187 ) (957,277 ) $ 1,037,696 $ 1,052,024

Goodwill

Goodwill	3 Months Ended
	Apr. 01, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill	(6) Goodwill As of April 1, 2019 and December 31, 2018, goodwill was as follows: Total (In thousands) Balance as of April 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.

Definite-lived Intangibles

Definite-lived Intangibles	3 Months Ended
	Apr. 01, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Definite-lived Intangibles	(7) Definite-lived Intangibles As of April 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) (years) April 1, 2019 Customer relationships $ 415,000 $ (93,149 ) $ 321,851 10.7 Technology 39,500 (4,525 ) 34,975 9.4 Backlog 29,000 (27,908 ) 1,092 0.9 $ 483,500 $ (125,582 ) $ 357,918 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 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 $18,005 and $5,861 for the quarters ended April 1, 2019 and April 2, 2018, respectively. For the quarter ended April 1, 2019, $1,179 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 $ 35,156 2020 45,419 2021 42,108 2022 39,002 2023 36,290 Thereafter 159,943 $ 357,918

Long-term Debt and Letters of C

Long-term Debt and Letters of Credit	3 Months Ended
	Apr. 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 April 1, 2019 and December 31, 2018: Interest Rate as of April 1, 2019 Principal Outstanding as of April 1, 2019 Interest Rate as of December 31, 2018 Principal Outstanding as of December 31, 2018 (In thousands) Term Loan due September 2024 4.99% $ 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 May 2020 3.99% 40,000 4.00% 40,000 Asia ABL Revolving Loan due May 2020 3.89% 30,000 3.90% 30,000 1,500,854 1,530,864 Less: Long-term debt unamortized discount (19,603 ) (22,167 ) Long-term debt unamortized debt issuance costs (15,241 ) (16,272 ) 1,466,010 1,492,425 Less: current maturities — (30,000 ) Long-term debt, less current maturities $ 1,466,010 $ 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 April 1, 2019 and is included in long-term debt. The Term Loan Facility was issued at a weighted average discount of 99.7% and bears interest, at the Company’s option, at a floating rate of LIBOR, plus an applicable interest margin of 2.50%, or an alternate base rate, (defined as the greater of the JP Morgan prime, 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 1.5%. At April 1, 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 is 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, bears 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 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 April 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 April 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 quarters ended April 1, 2019 and April 2, 2018 were as follows: Quarter Ended April 1, April 2, 2019 2018 (In thousands) Contractual coupon interest $ 1,094 $ 1,094 Amortization of debt discount $ 2,379 $ 2,230 Amortization of debt issuance costs $ 238 $ 224 Asset-Based Lending Agreements The Company maintains a $200,000 U.S. Asset-Based Lending Credit Agreement (U.S. ABL), and a $150,000 Asia Asset-Based Lending Credit Agreement (Asia ABL) (collectively the ABL Revolving Loans). The U.S. ABL consists of three tranches comprised of a revolving credit facility for up to $200,000, a letter of credit facility for up to $50,000, and swingline loans for up to $30,000, provided that at no time may amounts outstanding under the tranches exceed in aggregate $200,000 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 150 basis points or JP Morgan Chase Bank’s prime rate plus a margin of 50 basis points, at the Company’s option. At April 1, 2019, the interest rate on the outstanding borrowings under the U.S. ABL was 3.99%. The applicable margin can vary based on the remaining availability of the facility, from 125 to 175 basis points for LIBOR-based loans and from 25 to 75 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 May 31, 2020. 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 April 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 April 1, 2019, the interest rate on the outstanding borrowings under the Asia ABL was 3.89%. There is no provision, other than an event of default, for the interest margin to increase. The Asia ABL will mature on May 22, 2020. 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 April 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 April 1, 2019, letters of credit in the amount of $13,383 were outstanding under the U.S. ABL and $19,445 were outstanding under the Asia ABL with various expiration dates through September 2019. Available borrowing capacity under the U.S. ABL and the Asia ABL was $146,617 and $100,555, respectively, which considers letters of credit outstanding as of April 1, 2019. The Company is required to pay a commitment fee of 0.25% to 0.375% per annum on any unused portion of the U.S. ABL or Asia ABL. The Company incurred total commitment fees related to unused borrowing availability of $240 and $241 for the quarters ended April 1, 2019 and April 2, 2018, respectively. Under the occurrence of certain events, the ABL Revolving Loans are subject to various financial and operational covenants, including maintaining minimum fixed charge coverage ratios. 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 $31,286 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, and this arrangement expires in June 2019. As of April 1, 2019, the Chinese Revolver had not been drawn upon. Debt Issuance and Debt Discount As of April 1, 2019 As of April 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) Term Loan due September 2024 $ 7,620 $ 2,305 4.66% $ 8,229 $ 2,489 4.66% Senior Notes due October 2025 5,887 — 5.92% 6,071 — 5.92% Convertible Senior Notes 1,734 17,298 6.48% 1,972 19,678 6.48% $ 15,241 $ 19,603 $ 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 $1,170 and $1,420 as of April 1, 2019 At April 1, 2019, the remaining weighted average amortization period for all unamortized debt discount and debt issuance costs was 3.5 years.

Income Taxes

Income Taxes	3 Months Ended
	Apr. 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 ended April 1, 2019, the Company’s effective tax rate was impacted by a net discrete benefit of $342. This is related to retroactive approval of the Company’s renewal application for High and New Tax Enterprise status for two of the Company’s manufacturing subsidiaries in China offset by the accrued interest expense on existing uncertain tax positions. 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	3 Months Ended
	Apr. 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 April 1, 2019, the fair value of the interest rate swap was recorded as a liability in the amount of $6,982 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, in the Company’s consolidated condensed balance sheet. No ineffectiveness was recognized for the quarter ended April 1, 2019. During the quarter ended April 1, 2019, the interest rate swap increased interest expense by $339. 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. There were no foreign exchange contracts at April 1, 2019. The notional amount of the foreign exchange contracts at December 31, 2018 was approximately $4,313. The Company had 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: Liability Fair Value Balance Sheet Location April 1, 2019 December 31, 2018 (In thousands) Cash flow derivative instruments designated as hedges: Interest rate swap Other long-term liabilities $ (6,982 ) $ (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 quarters ended April 1, 2019 and April 2, 2018: Quarter ended April 1, 2019 Quarter ended April 2, 2018 Financial Statement Caption Gain/(Loss) Recognized in Other Comprehensive Income Gain/(Loss) Reclassified into Income Gain/(Loss) Recognized in Other Comprehensive Income Gain/(Loss) Reclassified into Income (In thousands) Cash flow hedge: Interest rate swap Interest expense $ (2,586 ) $ (339 ) $ — $ — Foreign currency forward Depreciation expense — (39 ) (6 ) 41 The following table provides a summary of the activity associated with the designated cash flow hedges reflected in accumulated other comprehensive loss for the quarters ended April 1, 2019 and April 2, 2018: Quarter Ended April 1, April 2, 2019 2018 (In thousands) Beginning balance, net of tax $ (4,214 ) $ (742 ) Changes in fair value loss, net of tax (1,828 ) (6 ) Reclassification to earnings 278 41 Ending balance, net of tax $ (5,764 ) $ (707 ) Based on the current yield curve, the Company expects that losses of approximately $1,417 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 recognized in other, net in the consolidated condensed statements of operations on derivative instruments not designated as hedges is as follows: Quarter Ended April 1, April 2, 2019 2018 (In thousands) Derivative instruments not designated as hedges: Foreign exchange contracts $ 4 $ 427

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	3 Months Ended
	Apr. 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 April 1, 2019 and December 31, 2018: Foreign Currency Translation Pension Obligation Gains (Losses) on Cash Flow Hedges Total (In thousands) Ending balance at December 31, 2018 $ 1,578 $ (1,284 ) $ (4,214 ) $ (3,920 ) Other comprehensive income (loss) before reclassifications 630 19 (1,828 ) (1,179 ) Amounts reclassified from accumulated other comprehensive income — — 278 278 Other comprehensive income (loss) 630 19 (1,550 ) (901 ) Ending balance at April 1, 2019 $ 2,208 $ (1,265 ) $ (5,764 ) $ (4,821 )

Significant Customers and Conce

Significant Customers and Concentration of Credit Risk	3 Months Ended
	Apr. 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. Most customers to which the Company extends credit are located outside the United States. 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. There were no customers that accounted for 10% or more of net sales for the quarter ended April 1, 2019. For the quarter ended April 2, 2018, one customer accounted for approximately 16% of the Company’s net sales. There were no other customers that accounted for 10% or more of net sales for the quarter ended April 2, 2018.

Fair Value Measures

Fair Value Measures	3 Months Ended
	Apr. 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 at April 1, 2019 and December 31, 2018 were as follows: April 1, 2019 December 31, 2018 Carrying Amount Fair Value Carrying Amount Fair Value (In thousands) Derivative liabilities, current $ — $ — $ 139 $ 139 Derivative liabilities, non-current 6,982 6,982 4,735 4,735 Term Loan due September 2024 795,954 791,776 825,161 782,592 Senior Notes due October 2025 369,113 365,205 368,929 350,880 Convertible Senior Notes 230,943 337,691 228,335 290,858 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 April 1, 2019 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 April 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 at April 1, 2019 consisted of $25,308 held in the U.S., with the remaining $209,911 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	3 Months Ended
	Apr. 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 April 1, 2019 and December 31, 2018. However, these amounts are not material to the consolidated condensed financial statements of the Company.

(Loss) Earnings Per Share

(Loss) Earnings Per Share	3 Months Ended
	Apr. 01, 2019
Earnings Per Share [Abstract]
(Loss) Earnings Per Share	(15) (Loss) Earnings Per Share The following is a reconciliation of the numerator and denominator used to calculate basic (loss) earnings per share and diluted (loss) earnings per share for the quarters ended April 1, 2019 and April 2, 2018: Quarter Ended April 1, 2019 April 2, 2018 (In thousands, except per share amounts) Net (loss) income $ (3,252 ) $ 10,097 Basic weighted average shares 104,315 102,508 Dilutive effect of performance-based restricted stock units, restricted stock units and stock options — 1,829 Dilutive effect of outstanding warrants — 3,180 Diluted shares 104,315 107,517 (Loss) earnings per share: Basic $ (0.03 ) 0.10 Diluted $ (0.03 ) 0.09 For the quarter ended April 1, 2019, potential shares of common stock, consisting of stock options to purchase approximately 100 shares of common stock at exercise prices ranging from $9.54 to $16.60 per share, 1,493 restricted stock units (RSUs), and 255 performance-based restricted stock units (PRUs) were not included in the computation of diluted earnings per share because the Company incurred a net loss and, as a result, the impact would be anti-dilutive. For the quarter ended April 2, 2018, PRUs, RSUs, and stock options to purchase 931 shares of common stock were not considered in calculating 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, therefore, the effect would be anti-dilutive. Outstanding warrants for the quarter ended April 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 quarters ended April 1, 2019 and April 2, 2018, 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	3 Months Ended
	Apr. 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 April 1, April 2, 2019 2018 (In thousands) Cost of goods sold $ 705 $ 529 Selling and marketing 466 374 General and administrative 2,755 2,719 Stock-based compensation expense recognized $ 3,926 $ 3,622 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 April 1, 2019, management determined that vesting of the PRU awards was probable. PRU activity for the quarter ended April 1, 2019 was as follows: Shares Weighted Average Fair Value (In thousands) Outstanding shares at December 31, 2018 255 $ 18.75 Granted 176 11.84 Outstanding shares at April 1, 2019 431 $ 15.94 The fair value for PRUs granted is calculated using a Monte Carlo simulation model, as the TSR modifier contains a market condition. For the quarters ended April 1, 2019 and April 2, 2018, the following assumptions were used in determining the fair value: Quarter Ended April 1, April 2, 2019 (1) 2018 (2) Weighted-average fair value $ 11.84 $ 19.60 Risk-free interest rate 2.50 % 2.13 % Dividend yield — — Expected volatility 39 % 40 % Expected term in years 1.3 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. (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 2 and 828 RSUs during the quarters ended April 1, 2019 and April 2, 2018, respectively. The RSUs granted have a weighted-average fair value per unit of $11.21 and $15.29 for the quarters ended April 1, 2019 and April 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 any stock option awards during the quarters ended April 1, 2019 and April 2, 2018. Summary of Unrecognized Compensation Costs The following is a summary of total unrecognized compensation costs as of April 1, 2019: Unrecognized Stock-Based Compensation Cost Remaining Weighted Average Recognition Period (In thousands) (In years) RSU awards $ 14,358 1.3 PRU awards 3,860 1.2 Stock options 330 2.0 $ 18,548

Segment Information

Segment Information	3 Months Ended
	Apr. 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 April 1, 2019 April 2, 2018 (In thousands) Net Sales: PCB (1) $ 568,822 $ 616,431 E-M Solutions 51,378 47,151 Total net sales $ 620,200 $ 663,582 Operating Segment Income (Loss): PCB (1) $ 58,542 $ 63,464 E-M Solutions 1,179 40 Corporate (24,226 ) (27,642 ) Total operating segment income 35,495 35,862 Amortization of definite-lived intangibles (2) (18,005 ) (5,861 ) Total operating income 17,490 30,001 Total other expense (22,218 ) (14,854 ) (Loss) income before income taxes $ (4,728 ) $ 15,147 (1) Figures for the quarter ended April 2, 2018 do not include Anaren, as the acquisition occurred on April 18, 2018. (2) Amortization of definite-lived intangibles primarily relates to the PCB reportable segment. For the quarter ended April 1, 2019, $1,179 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. Bank fees and legal, accounting, and other professional service costs associated with the acquisition of Anaren of $203 and $3,973 for the quarters ended April 1, 2019 and April 2, 2018, respectively, are included in Corporate (see Note 3).

Related Party Transactions

Related Party Transactions	3 Months Ended
	Apr. 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 $8,312 and $12,708 for the quarters ended April 1, 2019 and April 2, 2018, respectively. As of April 1, 2019 and December 31, 2018, the Company’s consolidated condensed balance sheets included $10,260 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.

Nature of Operations and Summ_2

Nature of Operations and Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Apr. 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 statement of stockholders’ equity.
Leases	Leases The Company determines if an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use (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.
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 balance sheet at December 31, 2018 and the consolidated condensed statement of operations for the quarter ended April 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 at December 31, 2018 New Lease Standard Adjustment Balance at January 1, 2019 (In thousands) Balance Sheet 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 or the consolidated condensed statement of cash flows for the quarter ended April 1, 2019. See Note 4 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

Nature of Operations and Summ_3

Nature of Operations and Summary of Significant Accounting Policies (Tables)	3 Months Ended
	Apr. 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 at December 31, 2018 New Lease Standard Adjustment Balance at January 1, 2019 (In thousands) Balance Sheet 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

Revenues (Tables)

Revenues (Tables)	3 Months Ended
	Apr. 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 April 1, 2019 PCB E-M Solutions Total End Markets (In thousands) Aerospace and Defense $ 165,068 $ 4 $ 165,072 Automotive 85,813 19,765 105,578 Cellular Phone 43,084 — 43,084 Computing/Storage/Peripherals 80,892 189 81,081 Medical/Industrial/Instrumentation 87,670 8,167 95,837 Networking/Communications 88,063 23,339 111,402 Other 18,232 (86 ) 18,146 Total $ 568,822 $ 51,378 $ 620,200 Quarter ended April 2, 2018 PCB E-M Solutions Total End Markets (In thousands) Aerospace and Defense $ 122,676 $ 89 $ 122,765 Automotive 116,292 19,310 135,602 Cellular Phone 104,860 — 104,860 Computing/Storage/Peripherals 88,542 305 88,847 Medical/Industrial/Instrumentation 93,634 7,523 101,157 Networking/Communications 81,937 19,473 101,410 Other 8,490 451 8,941 Total $ 616,431 $ 47,151 $ 663,582

Acquisitions of Anaren, Inc. (T

Acquisitions of Anaren, Inc. (Tables)	3 Months Ended
	Apr. 01, 2019
Business Combinations [Abstract]
Summary of Components of Purchase Price	The following summarizes the components of the purchase price: (In thousands) Cash consideration $ 596,396 Cash purchased 12,911 609,307 Debt assumed 178,604 Total consideration $ 787,911
Summary of Final Estimated Fair Values of Net Assets Acquired	The following summarizes the final estimated fair values of net assets acquired: (In thousands) Cash $ 12,911 Trade and notes receivables 32,457 Contract assets 23,585 Inventories 56,619 Other current assets 1,373 Property, plant and equipment 45,115 Identifiable intangible assets 336,000 Other assets 300 Goodwill 394,474 Trade accounts payable (14,623 ) Contract liabilities (7,778 ) Other current liabilities (7,616 ) Long-term debt (178,604 ) Non-current deferred tax liabilities (76,470 ) Other liabilities (8,436 ) Total $ 609,307
Summary of Unaudited Pro forma Financial Information	The pro forma financial information as presented below is for informational purposes only and is not necessarily indicative of the actual results that would have been achieved had the acquisition occurred at the beginning of the earliest period presented, or the results that may be achieved in future periods. Quarter Ended April 1, April 2, 2019 2018 (In thousands) Net sales $ 620,200 $ 726,844 Net (loss) income (3,252 ) 12,526 Basic (loss) earnings per share $ (0.03 ) $ 0.12 Dilutive (loss) earnings per share $ (0.03 ) $ 0.12

Leases (Tables)

Leases (Tables)	3 Months Ended
	Apr. 01, 2019
Leases [Abstract]
Components of Lease Expense	The components of lease expense were as follows: Quarter Ended April 1, 2019 (In thousands) Operating lease cost $ 2,231 Variable lease cost 191 Short-term lease cost 151
Supplemental Cash Flow Information Related to Leases	Supplemental cash flow information related to leases was as follows: Quarter Ended April 1, 2019 (In thousands) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 1,870 Right-of-use assets obtained in exchange for new lease obligations: Operating leases 6,789
Supplemental Balance Sheet Information Related to Leases	Supplemental balance sheet information related to leases was as follows: As of April 1, 2019 (In thousands) Operating lease right-of-use assets $ 21,631 Other current liabilities 7,405 Operating lease liabilities 14,598 Total operating lease liabilities $ 22,003 Weighted average remaining lease term 3.8 years Weighted average discount rate 4.10 %
Maturities of Operating Lease Liabilities	Maturities of operating lease liabilities were as follows 1 (In thousands) Less than one year $ 8,131 1 - 2 years 6,246 2 - 3 years 4,869 3 - 4 years 1,731 4 - 5 years 1,300 Thereafter 1,539 Total lease payments 23,816 Less imputed interest (1,813 ) Total $ 22,003 1
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

Composition of Certain Consol_2

Composition of Certain Consolidated Condensed Financial Statement Captions (Tables)	3 Months Ended
	Apr. 01, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Schedule of Composition of Certain Consolidated Condensed Financial Statement Captions	As of April 1, 2019 December 31, 2018 (in thousands) Inventories: Raw materials $ 101,002 $ 97,600 Work-in-process 11,623 10,299 Finished goods 2,175 1,478 $ 114,800 $ 109,377 Property, plant and equipment, net: Land and land use rights $ 74,850 $ 75,431 Buildings and improvements 536,038 534,122 Machinery and equipment 1,381,549 1,357,035 Construction-in-progress, furniture and fixtures and other 40,446 42,713 2,032,883 2,009,301 Less: Accumulated depreciation (995,187 ) (957,277 ) $ 1,037,696 $ 1,052,024

Goodwill (Tables)

Goodwill (Tables)	3 Months Ended
	Apr. 01, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill	As of April 1, 2019 and December 31, 2018, goodwill was as follows: Total (In thousands) Balance as of April 1, 2019 and December 31, 2018 Goodwill $ 938,445 Accumulated impairment losses (171,400 ) $ 767,045

Definite-lived Intangibles (Tab

Definite-lived Intangibles (Tables)	3 Months Ended
	Apr. 01, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Definite Lived Intangibles	As of April 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) (years) April 1, 2019 Customer relationships $ 415,000 $ (93,149 ) $ 321,851 10.7 Technology 39,500 (4,525 ) 34,975 9.4 Backlog 29,000 (27,908 ) 1,092 0.9 $ 483,500 $ (125,582 ) $ 357,918 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 $ 35,156 2020 45,419 2021 42,108 2022 39,002 2023 36,290 Thereafter 159,943 $ 357,918

Long-term Debt and Letters of_2

Long-term Debt and Letters of Credit (Tables)	3 Months Ended
	Apr. 01, 2019
Debt Disclosure [Abstract]
Long-term Debt	The following table summarizes the long-term debt of the Company as of April 1, 2019 and December 31, 2018: Interest Rate as of April 1, 2019 Principal Outstanding as of April 1, 2019 Interest Rate as of December 31, 2018 Principal Outstanding as of December 31, 2018 (In thousands) Term Loan due September 2024 4.99% $ 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 May 2020 3.99% 40,000 4.00% 40,000 Asia ABL Revolving Loan due May 2020 3.89% 30,000 3.90% 30,000 1,500,854 1,530,864 Less: Long-term debt unamortized discount (19,603 ) (22,167 ) Long-term debt unamortized debt issuance costs (15,241 ) (16,272 ) 1,466,010 1,492,425 Less: current maturities — (30,000 ) Long-term debt, less current maturities $ 1,466,010 $ 1,462,425
Schedule of Liability and Equity Components of Convertible Senior Notes Included in Additional Paid-in Capital	As of April 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 April 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 quarters ended April 1, 2019 and April 2, 2018 were as follows: Quarter Ended April 1, April 2, 2019 2018 (In thousands) Contractual coupon interest $ 1,094 $ 1,094 Amortization of debt discount $ 2,379 $ 2,230 Amortization of debt issuance costs $ 238 $ 224
Schedule of Remaining Unamortized Debt Discount and Debt Issuance Costs	As of April 1, 2019 As of April 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) Term Loan due September 2024 $ 7,620 $ 2,305 4.66% $ 8,229 $ 2,489 4.66% Senior Notes due October 2025 5,887 — 5.92% 6,071 — 5.92% Convertible Senior Notes 1,734 17,298 6.48% 1,972 19,678 6.48% $ 15,241 $ 19,603 $ 16,272 $ 22,167

Financial Instruments (Tables)

Financial Instruments (Tables)	3 Months Ended
	Apr. 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: Liability Fair Value Balance Sheet Location April 1, 2019 December 31, 2018 (In thousands) Cash flow derivative instruments designated as hedges: Interest rate swap Other long-term liabilities $ (6,982 ) $ (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 quarters ended April 1, 2019 and April 2, 2018: Quarter ended April 1, 2019 Quarter ended April 2, 2018 Financial Statement Caption Gain/(Loss) Recognized in Other Comprehensive Income Gain/(Loss) Reclassified into Income Gain/(Loss) Recognized in Other Comprehensive Income Gain/(Loss) Reclassified into Income (In thousands) Cash flow hedge: Interest rate swap Interest expense $ (2,586 ) $ (339 ) $ — $ — Foreign currency forward Depreciation expense — (39 ) (6 ) 41
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 quarters ended April 1, 2019 and April 2, 2018: Quarter Ended April 1, April 2, 2019 2018 (In thousands) Beginning balance, net of tax $ (4,214 ) $ (742 ) Changes in fair value loss, net of tax (1,828 ) (6 ) Reclassification to earnings 278 41 Ending balance, net of tax $ (5,764 ) $ (707 )
Summary of Net Gain Recognized in Other, Net in Consolidated Statement of Operation on Derivative Instruments Not Designated as Hedges	The net gain recognized in other, net in the consolidated condensed statements of operations on derivative instruments not designated as hedges is as follows: Quarter Ended April 1, April 2, 2019 2018 (In thousands) Derivative instruments not designated as hedges: Foreign exchange contracts $ 4 $ 427

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	3 Months Ended
	Apr. 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 April 1, 2019 and December 31, 2018: Foreign Currency Translation Pension Obligation Gains (Losses) on Cash Flow Hedges Total (In thousands) Ending balance at December 31, 2018 $ 1,578 $ (1,284 ) $ (4,214 ) $ (3,920 ) Other comprehensive income (loss) before reclassifications 630 19 (1,828 ) (1,179 ) Amounts reclassified from accumulated other comprehensive income — — 278 278 Other comprehensive income (loss) 630 19 (1,550 ) (901 ) Ending balance at April 1, 2019 $ 2,208 $ (1,265 ) $ (5,764 ) $ (4,821 )

Fair Value Measures (Tables)

Fair Value Measures (Tables)	3 Months Ended
	Apr. 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 at April 1, 2019 and December 31, 2018 were as follows: April 1, 2019 December 31, 2018 Carrying Amount Fair Value Carrying Amount Fair Value (In thousands) Derivative liabilities, current $ — $ — $ 139 $ 139 Derivative liabilities, non-current 6,982 6,982 4,735 4,735 Term Loan due September 2024 795,954 791,776 825,161 782,592 Senior Notes due October 2025 369,113 365,205 368,929 350,880 Convertible Senior Notes 230,943 337,691 228,335 290,858 ABL Revolving Loans 70,000 70,000 70,000 70,000

(Loss) Earnings Per Share (Tabl

(Loss) Earnings Per Share (Tables)	3 Months Ended
	Apr. 01, 2019
Earnings Per Share [Abstract]
Reconciliation of Numerator and Denominator Used to Calculate Basic (Loss) Earnings per Share and Diluted (Loss) Earnings per Share	The following is a reconciliation of the numerator and denominator used to calculate basic (loss) earnings per share and diluted (loss) earnings per share for the quarters ended April 1, 2019 and April 2, 2018: Quarter Ended April 1, 2019 April 2, 2018 (In thousands, except per share amounts) Net (loss) income $ (3,252 ) $ 10,097 Basic weighted average shares 104,315 102,508 Dilutive effect of performance-based restricted stock units, restricted stock units and stock options — 1,829 Dilutive effect of outstanding warrants — 3,180 Diluted shares 104,315 107,517 (Loss) earnings per share: Basic $ (0.03 ) 0.10 Diluted $ (0.03 ) 0.09

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	3 Months Ended
	Apr. 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 April 1, April 2, 2019 2018 (In thousands) Cost of goods sold $ 705 $ 529 Selling and marketing 466 374 General and administrative 2,755 2,719 Stock-based compensation expense recognized $ 3,926 $ 3,622
Performance-Based Restricted Stock Units Activity	PRU activity for the quarter ended April 1, 2019 was as follows: Shares Weighted Average Fair Value (In thousands) Outstanding shares at December 31, 2018 255 $ 18.75 Granted 176 11.84 Outstanding shares at April 1, 2019 431 $ 15.94
Assumptions Used in Determining Fair Value	For the quarters ended April 1, 2019 and April 2, 2018, the following assumptions were used in determining the fair value: Quarter Ended April 1, April 2, 2019 (1) 2018 (2) Weighted-average fair value $ 11.84 $ 19.60 Risk-free interest rate 2.50 % 2.13 % Dividend yield — — Expected volatility 39 % 40 % Expected term in years 1.3 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. (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 April 1, 2019: Unrecognized Stock-Based Compensation Cost Remaining Weighted Average Recognition Period (In thousands) (In years) RSU awards $ 14,358 1.3 PRU awards 3,860 1.2 Stock options 330 2.0 $ 18,548

Segment Information (Tables)

Segment Information (Tables)	3 Months Ended
	Apr. 01, 2019
Segment Reporting [Abstract]
Reconciliation of Operating Income (Loss) from Segments to Consolidated	Quarter Ended April 1, 2019 April 2, 2018 (In thousands) Net Sales: PCB (1) $ 568,822 $ 616,431 E-M Solutions 51,378 47,151 Total net sales $ 620,200 $ 663,582 Operating Segment Income (Loss): PCB (1) $ 58,542 $ 63,464 E-M Solutions 1,179 40 Corporate (24,226 ) (27,642 ) Total operating segment income 35,495 35,862 Amortization of definite-lived intangibles (2) (18,005 ) (5,861 ) Total operating income 17,490 30,001 Total other expense (22,218 ) (14,854 ) (Loss) income before income taxes $ (4,728 ) $ 15,147 (1) Figures for the quarter ended April 2, 2018 do not include Anaren, as the acquisition occurred on April 18, 2018. (2) Amortization of definite-lived intangibles primarily relates to the PCB reportable segment. For the quarter ended April 1, 2019, $1,179 of amortization expense is included in cost of goods sold.

Nature of Operations and Summ_4

Nature of Operations and Summary of Significant Accounting Policies - Cumulative Effect of Changes to Consolidated Condensed Balance Sheet For Adoption of New Lease Standard (Detail) - USD ($) $ in Thousands	Apr. 01, 2019	Jan. 01, 2019	Dec. 31, 2018
Assets
Operating lease right-of-use assets	$ 21,631
Deposits and other non-current assets	60,446		$ 55,597
Liabilities
Other	102,036		113,756
Operating lease liabilities	14,598
Other long-term liabilities	$ 99,086		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)

Revenues - Additional Informati

Revenues - Additional Information (Detail 1) - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2019-01-01 $ in Thousands	Apr. 01, 2019USD ($)
Revenue From Contract With Customer [Line Items]
Transaction price allocated to remaining performance obligations	$ 20,601
Remaining performance obligation period	1 year

Revenues - Additional Informa_2

Revenues - Additional Information (Detail)	3 Months Ended
	Apr. 01, 2019
Revenue From Contract With Customer [Line Items]
Remaining revenue performance obligation, percentage	85.00%
Transferred over Time
Revenue From Contract With Customer [Line Items]
Revenue from products and services transferred to customers, percentage	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%

Disaggregation of Revenue by Pr

Disaggregation of Revenue by Principal End Markets with the Reportable Segment (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2019	Apr. 02, 2018
Disaggregation Of Revenue [Line Items]
Total Revenue	$ 620,200	$ 663,582
Printed Circuit Board
Disaggregation Of Revenue [Line Items]
Total Revenue	568,822	616,431
E-M Solutions
Disaggregation Of Revenue [Line Items]
Total Revenue	51,378	47,151
Aerospace and Defense
Disaggregation Of Revenue [Line Items]
Total Revenue	165,072	122,765
Aerospace and Defense | Printed Circuit Board
Disaggregation Of Revenue [Line Items]
Total Revenue	165,068	122,676
Aerospace and Defense | E-M Solutions
Disaggregation Of Revenue [Line Items]
Total Revenue	4	89
Automotive
Disaggregation Of Revenue [Line Items]
Total Revenue	105,578	135,602
Automotive | Printed Circuit Board
Disaggregation Of Revenue [Line Items]
Total Revenue	85,813	116,292
Automotive | E-M Solutions
Disaggregation Of Revenue [Line Items]
Total Revenue	19,765	19,310
Cellular Phone
Disaggregation Of Revenue [Line Items]
Total Revenue	43,084	104,860
Cellular Phone | Printed Circuit Board
Disaggregation Of Revenue [Line Items]
Total Revenue	43,084	104,860
Computing/Storage/Peripherals
Disaggregation Of Revenue [Line Items]
Total Revenue	81,081	88,847
Computing/Storage/Peripherals | Printed Circuit Board
Disaggregation Of Revenue [Line Items]
Total Revenue	80,892	88,542
Computing/Storage/Peripherals | E-M Solutions
Disaggregation Of Revenue [Line Items]
Total Revenue	189	305
Medical/Industrial/Instrumentation
Disaggregation Of Revenue [Line Items]
Total Revenue	95,837	101,157
Medical/Industrial/Instrumentation | Printed Circuit Board
Disaggregation Of Revenue [Line Items]
Total Revenue	87,670	93,634
Medical/Industrial/Instrumentation | E-M Solutions
Disaggregation Of Revenue [Line Items]
Total Revenue	8,167	7,523
Networking/Communications
Disaggregation Of Revenue [Line Items]
Total Revenue	111,402	101,410
Networking/Communications | Printed Circuit Board
Disaggregation Of Revenue [Line Items]
Total Revenue	88,063	81,937
Networking/Communications | E-M Solutions
Disaggregation Of Revenue [Line Items]
Total Revenue	23,339	19,473
Other
Disaggregation Of Revenue [Line Items]
Total Revenue	18,146	8,941
Other | Printed Circuit Board
Disaggregation Of Revenue [Line Items]
Total Revenue	18,232	8,490
Other | E-M Solutions
Disaggregation Of Revenue [Line Items]
Total Revenue	$ (86)	$ 451

Acquisitions of Anaren, Inc. -

Acquisitions of Anaren, Inc. - Additional Information (Detail) - Anaren, Inc. - USD ($) $ in Thousands	Apr. 18, 2018	Apr. 01, 2019	Apr. 02, 2018
Business Acquisition [Line Items]
Business acquisition agreement date	Apr. 18, 2018
Total consideration	$ 787,911
Business combination, acquisition related costs		$ 203	$ 3,973

Summary of Components of Purcha

Summary of Components of Purchase Price (Detail) - Anaren, Inc. $ in Thousands	Apr. 18, 2018USD ($)
Business Acquisition [Line Items]
Cash consideration	$ 596,396
Cash purchased	12,911
Total purchase price	609,307
Debt assumed	178,604
Total consideration	$ 787,911

Summary of Final Estimated Fair

Summary of Final Estimated Fair Values of Net Assets Acquired (Detail) - USD ($) $ in Thousands	Apr. 01, 2019	Dec. 31, 2018	Apr. 18, 2018
Business Acquisition [Line Items]
Goodwill	$ 767,045	$ 767,045
Anaren, Inc.
Business Acquisition [Line Items]
Cash			$ 12,911
Trade and notes receivables			32,457
Contract assets			23,585
Inventories			56,619
Other current assets			1,373
Property, plant and equipment			45,115
Identifiable intangible assets			336,000
Other assets			300
Goodwill			394,474
Trade accounts payable			(14,623)
Contract liabilities			(7,778)
Other current liabilities			(7,616)
Long-term debt			(178,604)
Non-current deferred tax liabilities			(76,470)
Other liabilities			(8,436)
Total			$ 609,307

Summary of Unaudited Pro forma

Summary of Unaudited Pro forma Financial Information (Detail) - Anaren, Inc. - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Apr. 01, 2019	Apr. 02, 2018
Business Acquisition [Line Items]
Net sales	$ 620,200	$ 726,844
Net (loss) income	$ (3,252)	$ 12,526
Basic (loss) earnings per share	$ (0.03)	$ 0.12
Dilutive (loss) earnings per share	$ (0.03)	$ 0.12

Components of Lease Expense (De

Components of Lease Expense (Detail) $ in Thousands	3 Months Ended
	Apr. 01, 2019USD ($)
Leases [Abstract]
Operating lease cost	$ 2,231
Variable lease cost	191
Short-term lease cost	$ 151

Supplemental Cash Flow Informat

Supplemental Cash Flow Information Related to Leases (Detail) $ in Thousands	3 Months Ended
	Apr. 01, 2019USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 1,870
Right-of-use assets obtained in exchange for new lease obligations:
Operating leases	$ 6,789

Supplemental Balance Sheet Info

Supplemental Balance Sheet Information Related to Leases (Detail) $ in Thousands	Apr. 01, 2019USD ($)
Leases [Abstract]
Operating lease right-of-use assets	$ 21,631
Other current liabilities	$ 7,405
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesCurrent
Operating lease liabilities	$ 14,598
Total operating lease liabilities	$ 22,003
Weighted average remaining lease term	3 years 9 months 18 days
Weighted average discount rate	4.10%

Maturities of Operating Lease L

Maturities of Operating Lease Liabilities (Detail) $ in Thousands	Apr. 01, 2019USD ($)
Leases [Abstract]
Less than one year	$ 8,131
1 - 2 years	6,246
2 - 3 years	4,869
3 - 4 years	1,731
4 - 5 years	1,300
Thereafter	1,539
Total lease payments	23,816
Less imputed interest	(1,813)
Total	$ 22,003

Maturities of Operating Lease_2

Maturities of Operating Lease Liabilities (Parenthetical) (Detail)	Apr. 01, 2019USD ($)
Leases [Abstract]
Legally binding lease payments for leases signed but not yet commenced	$ 4,313,000

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

Schedule of Composition of Cert

Schedule of Composition of Certain Consolidated Condensed Financial Statement Captions (Detail) - USD ($) $ in Thousands	Apr. 01, 2019	Dec. 31, 2018
Inventories:
Raw materials	$ 101,002	$ 97,600
Work-in-process	11,623	10,299
Finished goods	2,175	1,478
Inventories	114,800	109,377
Property, plant and equipment, net:
Land and land use rights	74,850	75,431
Buildings and improvements	536,038	534,122
Machinery and equipment	1,381,549	1,357,035
Construction-in-progress, furniture and fixtures and other	40,446	42,713
Property, plant and equipment, gross	2,032,883	2,009,301
Less: Accumulated depreciation	(995,187)	(957,277)
Property, plant and equipment, net	$ 1,037,696	$ 1,052,024

Goodwill (Detail)

Goodwill (Detail) - USD ($) $ in Thousands	Apr. 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	3 Months Ended	12 Months Ended
	Apr. 01, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Gross Amount	$ 483,500	$ 542,634
Accumulated Amortization	(125,582)	(166,711)
Net Carrying Amount	357,918	375,923
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Gross Amount	415,000	203,634
Accumulated Amortization	(93,149)	(123,522)
Net Carrying Amount	$ 321,851	$ 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	(4,525)	$ (3,000)
Net Carrying Amount	$ 34,975
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
Finite-Lived Intangible Assets [Line Items]
Gross Amount	$ 29,000
Accumulated Amortization	(27,908)
Net Carrying Amount	$ 1,092
Weighted Average Amortization Period	10 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
	Apr. 01, 2019	Apr. 02, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Amortization of definite-lived intangibles	$ 18,005	$ 5,861
Amortization of definite-lived intangibles included in cost of goods sold	$ 1,179

Estimated Aggregate Amortizatio

Estimated Aggregate Amortization for Definite-Lived Intangible Assets (Detail) - USD ($) $ in Thousands	Apr. 01, 2019	Dec. 31, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Remaining 2019	$ 35,156
2020	45,419
2021	42,108
2022	39,002
2023	36,290
Thereafter	159,943
Net Carrying Amount	$ 357,918	$ 375,923

Long-term Debt (Detail)

Long-term Debt (Detail) - USD ($)	Dec. 31, 2018	Apr. 01, 2019
Debt Instrument [Line Items]
Long-term debt, gross	$ 1,530,864,000	$ 1,500,854,000
Less: Long-term debt unamortized discount	(22,167,000)	(19,603,000)
Long-term debt unamortized debt issuance costs	(16,272,000)	(15,241,000)
Long-term debt, Carrying Amount	1,492,425,000	1,466,010,000
Less: current maturities	(30,000,000)
Long-term debt, less current maturities	1,462,425,000	1,466,010,000
1.75% Convertible Senior Notes due December 15, 2020
Debt Instrument [Line Items]
Long-term debt, gross	249,985,000	249,975,000
Less: Long-term debt unamortized discount	$ (19,678,000)	$ (17,298,000)
Debt instrument, interest rate	1.75%	1.75%
Term Loan Due September 2024
Debt Instrument [Line Items]
Long-term debt, gross	$ 835,879,000	$ 805,879,000
Less: Long-term debt unamortized discount	$ (2,489,000)	$ (2,305,000)
Interest rate at period end	5.00%	4.99%
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 May 2020
Debt Instrument [Line Items]
Revolving loan	$ 40,000,000	$ 40,000,000
Long-term debt unamortized debt issuance costs	$ (1,420,000)	$ (1,170,000)
Interest rate at period end	4.00%	3.99%
Asia Asset Based Lending Revolving Loan Due May 2020
Debt Instrument [Line Items]
Revolving loan	$ 30,000,000	$ 30,000,000
Interest rate at period end	3.90%	3.89%

Long-term Debt (Parenthetical)

Long-term Debt (Parenthetical) (Detail)	3 Months Ended
	Apr. 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 May 2020
Debt Instrument [Line Items]
Long-term debt, maturity month and year	2020-05
Asia Asset Based Lending Revolving Loan Due May 2020
Debt Instrument [Line Items]
Long-term debt, maturity month and year	2020-05

Long-term Debt and Letters of_3

Long-term Debt and Letters of Credit - Additional Information (Detail)	Apr. 01, 2019USD ($)Tranche	Dec. 31, 2018USD ($)	Apr. 18, 2018USD ($)	Apr. 01, 2019USD ($)Tranche	Apr. 02, 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	$ 1,530,864,000		$ 1,500,854,000
Line of credit unused portion of commitment fee				240,000	$ 241,000
Remaining unamortized debt issuance costs	15,241,000	16,272,000		15,241,000
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	31,286,000			31,286,000
Line of credit unused portion of commitment fee				$ 0
Long-term debt, maturity month and year				2019-06
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	$ 249,985,000		$ 249,975,000
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
Minimum
Debt Instrument [Line Items]
Commitment fee under credit agreement				0.25%
Maximum
Debt Instrument [Line Items]
Commitment fee under credit agreement				0.375%
Maximum | Letters of Credit Facility
Debt Instrument [Line Items]
Letters of credit outstanding under U.S. ABL and Asia ABL, expiration period				2019-09
Weighted Average
Debt Instrument [Line Items]
Unamortized debt discount and debt issuance costs, amortization period	3 years 6 months
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	$ 835,879,000		$ 805,879,000
Interest rate at period end		5.00%		4.99%
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, New York Fed Bank Rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			0.50%
Term Loan Due September 2024 | Alternate Base Rate, LIBOR Rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			1.00%
Term Loan Due September 2024 | Alternate Base Rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			1.50%
Base rate description				Defined as the greater of the JP Morgan prime, the New York Fed bank rate plus 0.5% or LIBOR plus 1.0%
Term Loan Due September 2024 | Alternate Base Rate | Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			1.00%
U.S. Asset Based Lending Revolving Loan Due May 2020
Debt Instrument [Line Items]
Interest rate at period end		4.00%		3.99%
Long-term debt, maturity date				May 31, 2020
Debt instrument, percentage of voting stock pledged as security				65.00%
Debt instrument, maximum borrowing capacity	$ 200,000,000			$ 200,000,000
Number of tranches | Tranche	3			3
Long-term debt	$ 40,000,000			$ 40,000,000
Long-term debt, maturity month and year				2020-05
Remaining unamortized debt issuance costs	1,170,000	$ 1,420,000		$ 1,170,000
U.S. Asset Based Lending Revolving Loan Due May 2020 | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, maximum borrowing capacity	200,000,000			200,000,000
U.S. Asset Based Lending Revolving Loan Due May 2020 | Letters of Credit Facility
Debt Instrument [Line Items]
Debt instrument, maximum borrowing capacity	50,000,000			50,000,000
Letter of credit outstanding	13,383,000			13,383,000
Debt instrument, available borrowing capacity	146,617,000			146,617,000
U.S. Asset Based Lending Revolving Loan Due May 2020 | Swingline Loans
Debt Instrument [Line Items]
Debt instrument, maximum borrowing capacity	30,000,000			$ 30,000,000
U.S. Asset Based Lending Revolving Loan Due May 2020 | London Interbank Offered Rate (LIBOR) | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				1.50%
U.S. Asset Based Lending Revolving Loan Due May 2020 | 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 May 2020 | London Interbank Offered Rate (LIBOR) | Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				1.75%
U.S. Asset Based Lending Revolving Loan Due May 2020 | Prime Rate | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				0.50%
U.S. Asset Based Lending Revolving Loan Due May 2020 | Prime Rate | Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				0.25%
U.S. Asset Based Lending Revolving Loan Due May 2020 | Prime Rate | Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				0.75%
Asia Asset Based Revolving Loan
Debt Instrument [Line Items]
Interest rate at period end				3.89%
Long-term debt, maturity date				May 22, 2020
Debt instrument, maximum borrowing capacity	$ 150,000,000			$ 150,000,000
Number of tranches | Tranche	2			2
Long-term debt	$ 30,000,000			$ 30,000,000
Asia Asset Based Revolving Loan | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, maximum borrowing capacity	150,000,000			150,000,000
Asia Asset Based Revolving Loan | Letters of Credit Facility
Debt Instrument [Line Items]
Debt instrument, maximum borrowing capacity	100,000,000			100,000,000
Letter of credit outstanding	19,445,000			19,445,000
Debt instrument, available borrowing capacity	$ 100,555,000			$ 100,555,000
Asia Asset Based Revolving Loan | London Interbank Offered Rate (LIBOR) | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				1.40%

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	Apr. 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
	Apr. 01, 2019	Apr. 02, 2018
Debt Disclosure [Abstract]
Contractual coupon interest	$ 1,094	$ 1,094
Amortization of debt discount	2,379	2,230
Amortization of debt issuance costs	$ 238	$ 224

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	Apr. 01, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Debt Issuance Costs	$ 15,241	$ 16,272
Debt Discount	19,603	22,167
1.75% Convertible Senior Notes due December 15, 2020
Debt Instrument [Line Items]
Debt Issuance Costs	1,734	1,972
Debt Discount	$ 17,298	$ 19,678
Effective Interest Rate	6.48%	6.48%
Term Loan Due September 2024
Debt Instrument [Line Items]
Debt Issuance Costs	$ 7,620	$ 8,229
Debt Discount	$ 2,305	$ 2,489
Effective Interest Rate	4.66%	4.66%
Senior Notes Due October 2025
Debt Instrument [Line Items]
Debt Issuance Costs	$ 5,887	$ 6,071
Effective Interest Rate	5.92%	5.92%

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail)	3 Months Ended
	Apr. 01, 2019USD ($)
Income Tax Disclosure [Abstract]
Net discrete tax benefit	$ 342,000
Deferred tax liabilities	$ 0

Financial Instruments - Additio

Financial Instruments - Additional Information (Detail)	May 15, 2018USD ($)	Apr. 01, 2019USD ($)Derivative	Dec. 31, 2018USD ($)
Derivative [Line Items]
Accumulated other comprehensive income (loss) will be reclassified into the statement of operations, net of tax, in the next 12 months		$ (1,417,000)
Interest Rate Swap
Derivative [Line Items]
Interest rate derivatives, at fair value, net	$ 0
Derivative, ineffectiveness		0
Interest Rate Swap | Other Long-term Liabilities
Derivative [Line Items]
Interest rate derivative liability, at fair value		6,982,000
Interest Rate Swap | Interest expense
Derivative [Line Items]
Derivative instrument, increased interest expense		$ 339,000
Foreign Exchange Contracts
Derivative [Line Items]
Derivative, notional amount			$ 4,313,000
Number of derivative instruments | Derivative		0
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	Apr. 01, 2019	Dec. 31, 2018
Other Long-term Liabilities | Interest Rate Swap
Cash flow derivative instruments designated as hedges:
Cash flow derivative instruments designated as hedges, liability fair value	$ (6,982)	$ (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
	Apr. 01, 2019	Apr. 02, 2018
Derivative Instruments Gain Loss [Line Items]
Gain/(Loss) Recognized in Other Comprehensive Income	$ (1,828)	$ (6)
Interest Rate Swap | Interest expense
Derivative Instruments Gain Loss [Line Items]
Gain/(Loss) Recognized in Other Comprehensive Income	(2,586)
Gain/(Loss) Reclassified into Income	(339)
Foreign currency forward | Depreciation expense
Derivative Instruments Gain Loss [Line Items]
Gain/(Loss) Recognized in Other Comprehensive Income		(6)
Gain/(Loss) Reclassified into Income	$ (39)	$ 41

Summary of Activity of Designat

Summary of Activity of Designated Cash Flow Hedges in Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2019	Apr. 02, 2018
Derivative [Line Items]
Beginning balance	$ 1,227,087	$ 1,011,380
Ending balance	1,226,859	1,054,330
Gains (Losses) on Cash Flow Hedges
Derivative [Line Items]
Beginning balance	(4,214)	(742)
Changes in fair value loss, net of tax	(1,828)	(6)
Reclassification to earnings	278	41
Ending balance	$ (5,764)	$ (707)

Summary of Net Gain Recognized

Summary of Net Gain Recognized in Other, Net in Consolidated Statement of Operation on Derivative Instruments Not Designated as Hedges (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2019	Apr. 02, 2018
Foreign Exchange Contracts
Derivative [Line Items]
Derivative instruments not designated as hedges	$ 4	$ 427

Schedule of Accumulated Other C

Schedule of Accumulated Other Comprehensive Loss, Net of Tax (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2019	Apr. 02, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ 1,227,087	$ 1,011,380
Other comprehensive (loss) income, net of tax	(901)	657
Ending balance	1,226,859	1,054,330
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	1,578
Other comprehensive income (loss) before reclassifications	630
Other comprehensive (loss) income, net of tax	630
Ending balance	2,208
Pension Obligation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(1,284)
Other comprehensive income (loss) before reclassifications	19
Other comprehensive (loss) income, net of tax	19
Ending balance	(1,265)
Gains (Losses) on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(4,214)	(742)
Other comprehensive income (loss) before reclassifications	(1,828)	(6)
Amounts reclassified from accumulated other comprehensive income	278	41
Other comprehensive (loss) income, net of tax	(1,550)
Ending balance	(5,764)	(707)
Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(3,920)	3,403
Other comprehensive income (loss) before reclassifications	(1,179)
Amounts reclassified from accumulated other comprehensive income	278
Other comprehensive (loss) income, net of tax	(901)	657
Ending balance	$ (4,821)	$ 4,060

Significant Customers and Con_2

Significant Customers and Concentration of Credit Risk - Additional Information (Detail) - Customer	3 Months Ended
	Apr. 01, 2019	Apr. 02, 2018
Concentration Risk [Line Items]
Number of customers contributing to more than ten percent of revenue	0	1
Net Sales | Customer Concentration Risk
Concentration Risk [Line Items]
Percentage of net sales, accounted by one customer		16.00%

Carrying Amount and Estimated F

Carrying Amount and Estimated Fair Value of Financial Instruments (Detail) - USD ($) $ in Thousands	Apr. 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	$ 6,982	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	230,943	228,335
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative liabilities, current		139
Derivative liabilities, non-current	6,982	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	337,691	290,858
Term Loan Due September 2024 | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	795,954	825,161
Term Loan Due September 2024 | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	791,776	782,592
Senior Notes Due October 2025 | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	369,113	368,929
Senior Notes Due October 2025 | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	365,205	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	Apr. 01, 2019	Dec. 31, 2018	Apr. 02, 2018	Jan. 01, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 235,219	$ 256,360	$ 352,576	$ 409,326
Domestic Subsidiaries
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	25,308
Foreign Subsidiaries
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 209,911

Reconciliation of Numerator and

Reconciliation of Numerator and Denominator Used to Calculate Basic (Loss) Earnings per Share and Diluted (Loss) Earnings per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 01, 2019	Apr. 02, 2018
Earnings Per Share [Abstract]
Net (loss) income	$ (3,252)	$ 10,097
Basic weighted average shares	104,315	102,508
Dilutive effect of performance-based restricted stock units, restricted stock units and stock options		1,829
Dilutive effect of outstanding warrants		3,180
Diluted shares	104,315	107,517
(Loss) earnings per share:
Basic	$ (0.03)	$ 0.10
Diluted	$ (0.03)	$ 0.09

(Loss) Earnings Per Share - Add

(Loss) Earnings Per Share - Additional Information (Detail) - $ / shares shares in Thousands	3 Months Ended
	Apr. 01, 2019	Apr. 02, 2018
Stock options
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Shares excluded from calculating diluted earnings per share	100
Common stock exercise price, lower range limit	$ 9.54
Common stock exercise price, upper range limit	$ 16.60
Restricted Stock Units (RSUs)
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Shares excluded from calculating diluted earnings per share	1,493
Performance-Based Restricted Stock Units (PRUs)
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Shares excluded from calculating diluted earnings per share	255
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		931

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
	Apr. 01, 2019	Apr. 02, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	$ 3,926	$ 3,622
Cost of goods sold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	705	529
Selling and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	466	374
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	$ 2,755	$ 2,719

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail)	3 Months Ended
	Apr. 01, 2019Time$ / sharesshares		Apr. 02, 2018$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option granted	0		0
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	176,000
Weighted Average Grant-Date Fair Value Granted | $ / shares	$ 11.84	[1]	$ 19.60	[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	2,000		828,000
Weighted Average Grant-Date Fair Value Granted | $ / shares	$ 11.21		$ 15.29
[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.
[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	3 Months Ended
	Apr. 01, 2019		Apr. 02, 2018	[2]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding shares at December 31, 2018	255
Granted	176
Outstanding shares at April 1, 2019	431
Weighted Average Grant-Date Fair Value
Outstanding shares at December 31, 2018	$ 18.75
Granted	11.84	[1]	$ 19.60
Outstanding shares at April 1, 2019	$ 15.94
[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.
[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	3 Months Ended
	Apr. 01, 2019	[1]	Apr. 02, 2018	[2]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	$ 11.84		$ 19.60
Risk-free interest rate	2.50%		2.13%
Expected volatility	39.00%		40.00%
Expected term in years	1 year 3 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.
[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	3 Months Ended
	Apr. 01, 2019USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Stock-Based Compensation Cost	$ 18,548
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Stock-Based Compensation Cost	$ 14,358
Remaining Weighted Average Recognition Period (years)	1 year 3 months 18 days
Performance-Based Restricted Stock Units (PRUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Stock-Based Compensation Cost	$ 3,860
Remaining Weighted Average Recognition Period (years)	1 year 2 months 12 days
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Stock-Based Compensation Cost	$ 330
Remaining Weighted Average Recognition Period (years)	2 years

Segment Information - Additiona

Segment Information - Additional Information (Detail) $ in Thousands	3 Months Ended
	Apr. 01, 2019USD ($)Segment	Apr. 02, 2018USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | Segment	2
Anaren, Inc.
Segment Reporting Information [Line Items]
Business combination, acquisition related costs | $	$ 203	$ 3,973

Reconciliation of Operating Inc

Reconciliation of Operating Income (Loss) from Segments to Consolidated By Reportable Segments (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2019	Apr. 02, 2018
Segment Reporting Information [Line Items]
Net sales	$ 620,200	$ 663,582
Operating income (loss)	17,490	30,001
Amortization of definite-lived intangibles	(18,005)	(5,861)
Total other expense	(22,218)	(14,854)
(Loss) income before income taxes	(4,728)	15,147
Printed Circuit Board
Segment Reporting Information [Line Items]
Net sales	568,822	616,431
E-M Solutions
Segment Reporting Information [Line Items]
Net sales	51,378	47,151
Operating Segment
Segment Reporting Information [Line Items]
Operating income (loss)	35,495	35,862
Operating Segment | Printed Circuit Board
Segment Reporting Information [Line Items]
Net sales	568,822	616,431
Operating income (loss)	58,542	63,464
Operating Segment | E-M Solutions
Segment Reporting Information [Line Items]
Net sales	51,378	47,151
Operating income (loss)	1,179	40
Corporate
Segment Reporting Information [Line Items]
Operating income (loss)	$ (24,226)	$ (27,642)

Reconciliation of Operating I_2

Reconciliation of Operating Income (Loss) from Segments to Consolidated By Reportable Segments (Parenthetical) (Detail) $ in Thousands	3 Months Ended
	Apr. 01, 2019USD ($)
Segment Reporting Information [Line Items]
Amortization of definite-lived intangibles included in cost of goods sold	$ 1,179
Printed Circuit Board
Segment Reporting Information [Line Items]
Amortization of definite-lived intangibles included in cost of goods sold	$ 1,179

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2019	Apr. 02, 2018	Dec. 31, 2018
Related Party Transaction [Line Items]
Accounts payable due to related parties	$ 10,260		$ 10,630
Foreign Subsidiaries
Related Party Transaction [Line Items]
Purchases from related party	$ 8,312	$ 12,708