CTS (CTS) 10-Q 3 May 16 2016 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2016	Apr. 29, 2016
Document And Entity Information
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q1
Trading Symbol	CTS
Entity Registrant Name	CTS CORP
Entity Central Index Key	26,058
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		32,758,643

Consolidated Statements of Earn

Consolidated Statements of Earnings - Unaudited - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 29, 2015
Income Statement [Abstract]
Net sales	$ 96,705	$ 98,311
Cost of goods sold	63,237	66,175
Gross Margin	33,468	32,136
Selling, general and administrative expenses	14,872	15,711
Research and development expenses	6,163	5,199
Restructuring and impairment charges	0	738
Operating (loss) earnings	12,433	10,488
Other (expense) income:
Interest expense	(820)	(588)
Interest income	547	788
Other expense	(195)	(1,684)
Total other expense	(468)	(1,484)
Earnings before income taxes	11,965	9,004
Income tax expense	4,102	2,717
Net earnings	$ 7,863	$ 6,287
(Loss) earnings per share:
Basic (in dollars per share)	$ 0.24	$ 0.19
Diluted (in dollars per share)	$ 0.24	$ 0.19
Basic weighted - average common shares outstanding (in shares):	32,632	33,411
Effect of dilutive securities (in shares)	373	524
Diluted weighted - average common shares outstanding (in shares)	33,005	33,935
Cash dividends declared per share (in dollars per share)	$ 0.040	$ 0.040

Condensed Consolidated Statemen

Condensed Consolidated Statements of Comprehensive Earnings - Unaudited - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 29, 2015
Statement of Comprehensive Income [Abstract]
Net earnings	$ 7,863	$ 6,287
Other comprehensive income (loss):
Changes in fair market value of hedges, net of tax	294	(86)
Changes in unrealized pension cost, net of tax	908	1,257
Cumulative translation adjustment, net of tax	(409)	(1,103)
Other comprehensive income	793	68
Comprehensive income	$ 8,656	$ 6,355

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - Unaudited - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current Assets
Cash and cash equivalents	$ 130,964	$ 156,928
Accounts receivable, net	64,785	54,563
Inventories, net	26,062	24,600
Other current assets	13,843	9,863
Total current assets	235,654	245,954
Property, plant and equipment, net	77,456	69,872
Other Assets
Prepaid pension asset	35,746	33,779
Goodwill	66,975	33,865
Other intangible assets, net	63,662	34,758
Deferred income taxes	59,526	63,809
Other	1,320	1,336
Total other assets	227,229	167,547
Total Assets	540,339	483,373
Current Liabilities
Accounts payable	44,031	40,299
Accrued payroll and benefits	7,649	7,147
Accrued liabilities	48,853	47,174
Total current liabilities	100,533	94,620
Long-term debt	141,300	90,700
Post retirement obligations	7,187	7,230
Other long-term obligations	3,071	9,169
Total Liabilities	252,091	201,719
Shareholders’ Equity
Common stock	302,139	300,909
Additional contributed capital	39,185	41,166
Retained earnings	388,392	381,840
Accumulated other comprehensive loss	(98,212)	(99,005)
Total shareholders’ equity before treasury stock	631,504	624,910
Treasury stock	(343,256)	(343,256)
Total shareholders’ equity	288,248	281,654
Total Liabilities and Shareholders’ Equity	$ 540,339	$ 483,373

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Cash Flows - Unaudited - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 29, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 7,863	$ 6,287
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	4,021	4,065
Pension and other post-retirement plan (income) expense	(427)	1,648
Equity-based compensation	282	1,520
Restructuring charges	0	738
Prepaid pension assets	0	(2,211)
Deferred income taxes	(1,067)	0
Gain on sales of fixed assets	(3)	0
Changes in assets and liabilities:
Accounts receivable	(8,122)	(10,942)
Inventories	966	(1,231)
Other assets	(3,330)	134
Accounts payable	1,647	264
Accrued liabilities	(756)	(58)
Income taxes payable	735	860
Other liabilities	(1,398)	(591)
Pension and other post-retirement plans	(58)	0
Net cash provided by operating activities	353	483
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(2,877)	(1,192)
Proceeds from sale of assets	3	1
Payment for acquisition, net of cash acquired	(72,830)	0
Net cash used in investing activities	(75,704)	(1,191)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments of long-term debt	(521,300)	(240,900)
Proceeds from borrowings of long-term debt	571,900	249,100
Purchase of treasury stock	0	(2,893)
Dividends paid	(1,303)	(1,336)
Windfall tax benefits from equity awards	696	117
Net cash provided by financing activities	49,993	4,088
Effect of exchange rate changes on cash and cash equivalents	(606)	445
Net (decrease) increase in cash and cash equivalents	(25,964)	3,825
Cash and cash equivalents at beginning of period	156,928	134,508
Cash and cash equivalents at end of period	130,964	138,333
Supplemental cash flow information:
Cash paid for interest	736	454
Cash paid for income taxes, net	$ 5,407	$ 1,608

Basis of Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2016
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying condensed consolidated financial statements have been prepared by CTS Corporation (“CTS” or “the Company”), without audit, pursuant to the rules and regulations of the Securities and Exchange Commission. Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles have been omitted pursuant to such rules and regulations. The unaudited condensed consolidated financial statements should be read in conjunction with the financial statements, notes thereto, and other information included in the Company’s Annual Report on Form 10‑K for the year ended December 31, 2015 . The accompanying unaudited condensed consolidated financial statements reflect, in the opinion of management, all adjustments (consisting of normal recurring items) necessary for a fair statement, in all material respects, of the financial position and results of operations for the periods presented. The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reported period. Actual results could differ materially from those estimates. The results of operations for the interim periods are not necessarily indicative of the results for the entire year. Subsequent Events CTS has evaluated subsequent events and transactions for potential recognition or disclosure in the financial statements through the date the financial statements are issued. Reclassifications Certain prior period reclassifications have been made in the Condensed Consolidated Balance Sheet as a result of including our other post-retirement benefit plan liabilities in Post retirement obligations as well as the retrospective application of a new accounting pronouncement upon the adoption of ASU 2015-17 (see Note 18 - Recent Accounting Pronouncements for additional details). The chart below quantifies the effects of these reclassification adjustments on our December 31, 2015, financial statements: At December 31, 2015 Consolidated Balance Sheet Line Item As previously reported Reclassification adjustment As currently reported Other current assets $ 15,888 $ (6,025 ) $ 9,863 Deferred income taxes $ 58,544 $ 5,265 $ 63,809 Accrued liabilities $ (53,905 ) $ 6,731 $ (47,174 ) Post retirement obligations $ (2,703 ) $ (4,527 ) $ (7,230 ) Other long-term obligations $ (7,725 ) $ (1,444 ) $ (9,169 )

Accounts Receivable

Accounts Receivable	3 Months Ended
	Mar. 31, 2016
Receivables [Abstract]
Accounts Receivable	Accounts Receivable The components of accounts receivable are as follows: As of March 31, December 31, 2016 2015 Accounts receivable, gross $ 64,955 $ 54,696 Less: Allowance for doubtful accounts (170 ) (133 ) Accounts receivable, net $ 64,785 $ 54,563

Inventories

Inventories	3 Months Ended
	Mar. 31, 2016
Inventory Disclosure [Abstract]
Inventories	Inventories Inventories consist of the following: As of March 31, December 31, 2016 2015 Finished goods $ 5,851 $ 6,972 Work-in-process 8,405 6,828 Raw materials 17,813 16,991 Less: Inventory reserves (6,007 ) (6,191 ) Inventories, net $ 26,062 $ 24,600

Property, Plant and Equipment

Property, Plant and Equipment	3 Months Ended
	Mar. 31, 2016
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment is comprised of the following: As of March 31, December 31, 2016 2015 Land $ 2,401 $ 2,401 Buildings and improvements 66,533 65,731 Machinery and equipment 200,482 191,212 Less: Accumulated depreciation (191,960 ) (189,472 ) Property, plant and equipment, net $ 77,456 $ 69,872

Retirement Plans

Retirement Plans	3 Months Ended
	Mar. 31, 2016
Compensation and Retirement Disclosure [Abstract]
Retirement Plans	Retirement Plans Pension Plans Net pension income for our domestic and foreign plans was as follows: Three Months Ended March 31, March 29, 2016 2015 Net pension (income) $ (392 ) $ (528 ) Net pension (income) expense breakdown for our domestic and foreign plans include the following components: Domestic Pension Plans Foreign Pension Plans Three Months Ended Three Months Ended March 31, March 29, March 31, March 29, 2016 2015 2016 2015 Service cost $ 22 $ 42 $ 12 $ 17 Interest cost 2,756 2,815 11 123 Expected return on plan assets (1) (4,744 ) (5,068 ) 7 (133 ) Amortization of loss 1,498 1,585 34 91 Other cost due to retirement 12 — — — (Income) expense, net $ (456 ) $ (626 ) $ 64 $ 98 (1) Expected return on plan assets is net of expected investment expenses and certain administrative expenses. Other Post-retirement Benefit Plan Net post-retirement expense for our post-retirement plan includes the following components: Three Months Ended March 31, March 29, 2016 2015 Other post-retirement benefit plan Service cost $ 1 $ 1 Interest cost 52 51 Amortization of gain (38 ) (25 ) Post-retirement expense $ 15 $ 27

Other Intangible Assets

Other Intangible Assets	3 Months Ended
	Mar. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Other Intangible Assets	Other Intangible Assets Intangible assets consist of the following components: As of March 31, 2016 Gross Accumulated Net Amount Amortized intangible assets: Customer lists/relationships $ 51,804 $ (27,722 ) $ 24,082 Patents 10,319 (10,319 ) — Technology and other intangibles 45,070 (5,490 ) 39,580 Other intangible assets, net $ 107,193 $ (43,531 ) $ 63,662 Amortization expense for the three months ended March 31, 2016 $ 1,095 As of December 31, 2015 Gross Accumulated Net Amount Amortized intangible assets: Customer lists/relationships $ 51,804 $ (27,101 ) $ 24,703 Patents 10,319 (10,319 ) — Technology and other intangibles 12,871 (5,016 ) 7,855 In process research and development 2,200 — 2,200 Other intangible assets, net $ 77,194 $ (42,436 ) $ 34,758 Amortization expense for the three months ended March 29, 2015 $ 973 Amortization expense remaining for other intangible assets is as follows: Amortization 2016 $ 4,132 2017 5,424 2018 5,340 2019 5,332 2020 5,332 Thereafter 38,102 Total amortization expense $ 63,662

Costs Associated with Exit and

Costs Associated with Exit and Restructuring Activities	3 Months Ended
	Mar. 31, 2016
Restructuring and Related Activities [Abstract]
Costs Associated with Exit and Restructuring Activities	Costs Associated with Exit and Restructuring Activities Costs associated with exit and restructuring activities are recorded in the Condensed Consolidated Statement of Earnings as follows: restructuring related charges are recorded as a component of Cost of Goods Sold, and restructuring and impairment charges are reported on a separate line and included in Operating Earnings. Total restructuring, impairment and restructuring related charges were as follows: Three Months Ended March 31, March 29, 2016 2015 Restructuring-related charges (1) $ — $ 75 Restructuring and impairment charges — 738 Total restructuring, impairment, and restructuring-related charges $ — $ 813 (1) Restructuring-related charges are included in costs of goods sold In April 2014, CTS announced plans to restructure its operations and consolidate its Canadian operations into other existing CTS facilities as part of CTS’ overall plan to simplify its business model and rationalize its global footprint (“April 2014 Plan”). During the second quarter of 2015, CTS management revised the April 2014 Plan. The revision added $4,250 in planned costs. Additional administrative and legal costs were expected to account for $1,300 of the additional restructuring and impairment charges. The remaining $2,950 in restructuring related charges are for additional costs related to equipment relocation, training, travel and shipping. These restructuring actions, which were substantially completed during 2015, resulted in the reduction of approximately 120 positions. The following table displays the planned restructuring and restructuring-related charges associated with the April 2014 Plan, as well as a summary of the actual costs incurred through March 31, 2016 : Actual costs Planned incurred through April 2014 Plan Costs March 31, 2016 Inventory write-down $ 850 $ — Equipment relocation 1,800 444 Other charges 1,400 113 Restructuring-related charges, included in cost of goods sold $ 4,050 $ 557 Workforce reduction $ 4,200 $ 4,423 Other charges, including pension termination costs 1,700 3,413 Restructuring and impairment charges $ 5,900 $ 7,836 Total restructuring, impairment and restructuring related charges $ 9,950 $ 8,393 Total restructuring, impairment and restructuring related charges under the April 2014 Plan were as follows: Three Months Ended March 31, March 29, 2016 2015 Restructuring-related charges $ — $ — Restructuring and impairment charges — 361 Total restructuring, impairment, and restructuring related charges $ — $ 361 In June 2013, CTS announced a restructuring plan to simplify CTS’ global footprint by consolidating manufacturing facilities into existing locations (“June 2013 Plan”). The June 2013 Plan included the consolidation of operations from the U.K. manufacturing facility into the Czech Republic facility, the Carol Stream, Illinois manufacturing facility into the Juarez, Mexico facility and discontinuing manufacturing at the Singapore facility. Certain Corporate functions were consolidated or eliminated as a result of the June 2013 Plan. These restructuring actions were completed in 2015 and resulted in the reduction of approximately 350 positions. During the fourth quarter of 2014, CTS management revised the June 2013 Plan. The revision added $4,000 in planned costs. Future settlement of the U.K. pension plan was expected to account for $2,000 of the added cost. The remaining $2,000 in restructuring and impairment charges were for severance costs and resulted in the reduction of approximately 130 additional positions throughout CTS businesses. The above actions were substantially complete in 2015. The following table displays the planned restructuring and restructuring-related charges associated with the June 2013 Plan and a summary of the actual costs incurred through March 31, 2016 : Planned Actual costs June 2013 Plan Costs March 31, 2016 Inventory write-down $ 800 $ 1,143 Equipment relocation 900 1,792 Other charges 100 702 Restructuring-related charges, included in cost of goods sold $ 1,800 $ 3,637 Workforce reduction $ 10,150 $ 9,615 Asset impairment charge 3,000 4,139 Other charges, including pension termination costs 7,650 10,205 Restructuring and impairment charges $ 20,800 $ 23,959 Total restructuring and restructuring-related charges $ 22,600 $ 27,596 Under the June 2013 Plan, total restructuring, impairment and restructuring related charges incurred were as follows: Three Months Ended March 31, March 29, 2016 2015 Restructuring-related charges $ — $ 75 Restructuring and impairment charges — 377 Total restructuring, impairment, and restructuring-related charges $ — $ 452 The following table displays the restructuring reserve activity for the period ended March 31, 2016 : June 2013 Plan and April 2014 Plan Restructuring liability at January 1, 2016 $ 826 Restructuring and restructuring-related charges, excluding asset impairments and write-offs — Cost paid — Restructuring liability at March 31, 2016 $ 826

Accrued Liabilities

Accrued Liabilities	3 Months Ended
	Mar. 31, 2016
Other Liabilities Disclosure [Abstract]
Accrued Liabilities	Accrued Liabilities The components of accrued liabilities are as follows: As of March 31, December 31, 2016 2015 Accrued product related costs $ 5,126 $ 5,245 Accrued income taxes 9,617 8,845 Accrued property and other taxes 1,807 1,838 Accrued outside commissions 1,293 97 Accrued professional fees 1,765 704 Accrued building improvement costs 1,702 1,768 Dividends payable 1,310 1,302 Remediation reserves 20,819 20,603 Other accrued liabilities 5,414 6,772 Total accrued liabilities $ 48,853 $ 47,174

Contingencies

Contingencies	3 Months Ended
	Mar. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Contingencies	Contingencies Certain processes in the manufacture of CTS' current and past products create hazardous waste by-products as currently defined by federal and state laws and regulations. CTS has been notified by the U.S. Environmental Protection Agency, state environmental agencies, and in some cases, generator groups, that it is or may be a potentially responsible party regarding hazardous substances at several sites either presently or historically owned, leased, or operated by CTS. Some sites are Superfund sites such as in Asheville, North Carolina and Mountain View, California. CTS reserves for probable remediation activities and for claims and proceedings against CTS with respect to other environmental matters. CTS records reserves on a undiscounted basis. In the opinion of management, based upon presently available information relating to all such matters, adequate provision for probable and estimable costs have been recorded. We do not have any known environmental obligations where a loss is probable or reasonably possible of occurring for which we do not have a reserve, nor do we have any amounts for which we have not reserved because the amount of the loss cannot be reasonably estimated. Due to the inherent nature of environmental obligations, CTS cannot provide assurance that its ultimate environmental investigation and clean-up costs and liabilities will not materially exceed the amount of its current reserve. Our reserve and disclosures will be adjusted accordingly if additional information becomes available in the future. Unrelated to the environmental claims described above, certain other claims are pending against CTS with respect to matters arising out of the ordinary conduct of CTS’ business. Although the ultimate outcome of any potential litigation resulting from these claims cannot be predicted with certainty, and some may be disposed of unfavorably to CTS, management believes that adequate provision for anticipated costs have been established based upon all presently available information. Except as noted herein, we do not believe we have any pending loss contingencies that are probable or reasonably possible of having a material impact on our consolidated financial position, results of operations, or cash flows.

Debt

Debt	3 Months Ended
	Mar. 31, 2016
Debt Disclosure [Abstract]
Debt	Debt Long-term debt was comprised of the following: As of March 31, December 31, 2016 2015 Revolving credit facility due in 2020 $ 141,300 $ 90,700 Weighted average interest rate 1.8 % 1.5 % Amount available $ 56,385 $ 106,985 Total credit facility $ 200,000 $ 200,000 Standby letters of credit $ 2,315 $ 2,315 Commitment fee percentage per annum 0.30 % 0.25 % On August 10, 2015, CTS entered into a new five -year credit agreement with a group of banks (“Revolving Credit Facility”) in order to support CTS’ working capital needs and other general corporate purposes. The Revolving Credit Facility provides for a credit line of $200,000 , which may be increased by $100,000 at the request of CTS, subject to the Administrative Agent’s approval. This Revolving Credit Facility replaces the prior unsecured credit facility. Borrowings under the previous credit agreement were refinanced under the Revolving Credit Facility and the previous credit agreement was terminated on August 10, 2015. The Revolving Credit Facility includes a swing line sublimit of $15,000 and a letter of credit sublimit of $10,000 . Borrowings under the Revolving Credit Facility bear interest, at CTS’ option, at the base rate plus the applicable margin for base rate loans or LIBOR plus the applicable margin for LIBOR loans. CTS also pays a quarterly commitment fee on the unused portion of the Revolving Credit Facility. The commitment fee ranges from 0.20% to 0.40% based on the CTS’ total leverage ratio. The Revolving Credit Facility requires, among other things, that CTS comply with a maximum total leverage ratio and a minimum fixed charge coverage ratio. Failure of CTS to comply with these covenants could reduce the borrowing availability under the Revolving Credit Facility. CTS was in compliance with all debt covenants at March 31, 2016 . The Revolving Credit Facility requires that CTS deliver quarterly financial statements, annual financial statements, auditors certifications and compliance certificates within a specified number of days after the end of a quarter and year. Additionally, the Revolving Credit Facility contains restrictions limiting CTS' ability to: dispose of assets; incur certain additional debt; repay other debt or amend subordinated debt instruments; create liens on assets; make investments, loans or advances; make acquisitions or engage in mergers or consolidations; engage in certain transactions with CTS' subsidiaries and affiliates; and make stock repurchases and dividend payments. Interest rates on the Revolving Credit Facility fluctuate based upon the London Interbank Offered Rate and the Company’s quarterly total leverage ratio. CTS has debt issuance costs related to its long-term debt that are being amortized using the straight-line method over the life of the debt. Amortization expense was approximately $32 and $50 for the three months ended March 31, 2016 and March 29, 2015 , respectively, and was recognized as interest expense.

Derivative Financial Instrument

Derivative Financial Instruments	3 Months Ended
	Mar. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments Our earnings and cash flows are subject to fluctuations due to changes in foreign currency exchange rates and interest rates. We selectively use derivative financial instruments including foreign currency forward contracts and interest rate swaps to manage our exposure to these risks. The use of derivative financial instruments exposes the Company to credit risk, which relates to the risk of nonperformance by a counterparty to the derivative contracts. We manage our credit risk by entering into derivative contracts with only highly rated financial institutions and by using netting agreements. Foreign Currency Hedges In January of 2016, we began using forward contracts to mitigate currency risk related to a portion of our forecasted foreign currency revenues and costs. The currency forward contracts are designed as cash flow hedges and are recorded in the Condensed Consolidated Balance Sheets at fair value. Each month, we assess the effectiveness of these hedging relationships based on the total change in their fair value using regression analysis. The effective portion of derivative gains and losses are recorded in accumulated other comprehensive income until the hedged transaction affects earnings upon settlement, at which time they are reclassified to cost of goods sold or net sales. Ineffectiveness is recorded in other income (expense) in our Consolidated Statement of Earnings. If it becomes probable that an anticipated transaction that is hedged will not occur by the end of the originally specified time period, we reclassify the gains or losses related to that hedge from accumulated other comprehensive income to other income (expense). We continue to monitor the Company’s overall currency exposure and may elect to add cash flow hedges in the future. At March 31, 2016 , we had a net unrealized gain of $379 in accumulated other comprehensive income, which is expected to be reclassified to income within the next 12 months. The notional amount of foreign currency forward contracts outstanding was $17.2 million at March 31, 2016 . Interest Rate Swaps CTS uses interest rate swaps to convert the revolving credit facility’s variable rate of interest into a fixed rate. In the second quarter of 2012, CTS entered into four separate interest rate swap agreements to fix interest rates on $50,000 of long-term debt for the periods January 2013 to January 2017. In the third quarter of 2012, CTS entered into four additional interest rate swap agreements to fix interest rates on $25,000 of long-term debt for the periods January 2013 to January 2017. The difference to be paid or received under the terms of the swap agreements will be recognized as an adjustment to interest expense when settled. These swaps are treated as cash flow hedges and consequently, the changes in fair value were recorded in other comprehensive income (loss). The estimated net amount of the existing gains or losses that are reported in accumulated other comprehensive income (loss) that is expected to be reclassified into earnings within the next twelve months is approximately $674 . The location and fair values of derivative instruments designated as hedging instruments in the Condensed Consolidated Balance Sheets as of March 31, 2016 , are shown in the following table: As of March 31, December 31, 2016 2015 Foreign currency hedges reported in Other current assets $ 379 $ — Interest rate swaps reported in Accrued liabilities $ (674 ) $ (768 ) The Company has elected to net its derivative assets and liabilities in the balance sheet in accordance with ASC 210-20. On a gross basis, there were foreign exchange derivative assets of $675 and foreign exchange derivative liabilities of $296 . The effect of derivative instruments on the Condensed Consolidated Statements of Earnings is as follows: Three Months Ended March 31, March 29, 2016 2015 Foreign Exchange Contracts: Loss recognized in Net Sales $ (7 ) $ — Gain recognized in Cost of Goods Sold 1 — Gain recognized Selling, General and Administrative expense 4 — Gain recognized in Other (expense) income 6 — Interest Rate Swaps: Interest Expense $ 152 $ 190 Total $ 156 $ 190

Accumulated Other Comprehensive

Accumulated Other Comprehensive (Loss) Income	3 Months Ended
	Mar. 31, 2016
Equity [Abstract]
Accumulated Other Comprehensive (Loss) Income	Accumulated Other Comprehensive (Loss) Income Shareholders’ equity includes certain items classified as accumulated other comprehensive (loss) income (“AOCI”) in the Consolidated Balance Sheets, including: Unrealized gains (losses) on hedges relate to interest rate swaps to convert the line of credit’s variable rate of interest into a fixed rate and foreign currency forward contracts used to hedge our exposure to changes in exchange rates affecting certain revenues and costs denominated in foreign currencies. These hedges are designated as cash flow hedges, and CTS has deferred income statement recognition of gains and losses until the hedged transaction occurs, at which time amounts are reclassified into earnings. Further information related to CTS’ derivative financial instruments is included in Note 11 - Derivative Financial Instruments and Note 15 – Fair Value Measurements. Unrealized gains (losses) on pension obligations are deferred from income statement recognition until the gains or losses are realized. Amounts reclassified to income from AOCI are included in net periodic pension expense. Further information related to CTS’ pension obligations is included in NOTE 5 – Retirement Plans. Cumulative translation adjustment relates to our non-U.S. subsidiary companies that have designated a functional currency other than the U.S. dollar. CTS is required to translate the subsidiary functional currency financial statements to dollars using a combination of historical, period-end, and average foreign exchange rates. This combination of rates creates the foreign currency translation adjustment component of other comprehensive (loss) income. Changes in exchange rates between the functional currency and the currency in which a transaction is denominated are foreign exchange transaction gains or losses. Transaction losses for the three month periods ended March 31, 2016 , and March 29, 2015 , were $231 and $1,688 , respectively, which is included in other expense in the Condensed Consolidated Statement of Earnings. The components of accumulated other comprehensive (loss) income for the three months ended March 31, 2016 , are as follows: Gain (Loss) As of Gain (Loss) reclassified As of December 31, Recognized from AOCI March 31, 2015 in OCI to income 2016 Changes in fair market value of hedges: Gross $ (768 ) $ 242 $ 231 $ (295 ) Income tax (benefit) 289 (91 ) (88 ) 110 Net (479 ) 151 143 (185 ) Changes in unrealized pension cost: Gross (161,719 ) — 1,451 (160,268 ) Income tax (benefit) 64,361 (543 ) 63,818 Net (97,358 ) — 908 (96,450 ) Cumulative translation adjustment: Gross (1,279 ) (406 ) — (1,685 ) Income tax (benefit) 111 (3 ) — 108 Net (1,168 ) (409 ) — (1,577 ) Total accumulated other comprehensive (loss) income $ (99,005 ) $ (258 ) $ 1,051 $ (98,212 ) The components of other comprehensive (loss) income for the three months ended March 29, 2015 , are as follows: Gain (Loss) As of Gain (Loss) reclassified As of December 31, Recognized from AOCI March 29, 2014 in OCI to income 2015 Changes in fair market value of hedges: Gross $ (1,020 ) $ (327 ) $ 190 $ (1,157 ) Income tax (benefit) 384 123 (72 ) 435 Net (636 ) (204 ) 118 (722 ) Changes in unrealized pension cost: Gross (169,291 ) 1,930 — (167,361 ) Income tax (benefit) 65,124 (673 ) — 64,451 Net (104,167 ) 1,257 — (102,910 ) Cumulative translation adjustment: Gross 245 (736 ) — (491 ) Income tax (benefit) 325 (367 ) — (42 ) Net 570 (1,103 ) — (533 ) Total accumulated other comprehensive (loss) income $ (104,233 ) $ (50 ) $ 118 $ (104,165 )

Shareholders' Equity

Shareholders' Equity	3 Months Ended
	Mar. 31, 2016
Stockholders' Equity Note [Abstract]
Shareholders' Equity	Shareholders’ Equity Share count and par value data related to shareholders’ equity are as follows: As of March 31, December 31, 2016 2015 Preferred Stock Par value per share No par value No par value Shares authorized 25,000,000 25,000,000 Shares outstanding — — Common Stock Par value per share No par value No par value Shares authorized 75,000,000 75,000,000 Shares issued 56,452,665 56,242,499 Shares outstanding 32,758,643 32,548,477 Treasury stock Shares held 23,694,022 23,694,022 For the three month period ended March 29, 2015, CTS purchased 164,852 shares of common stock for an aggregate of $2,893 under a board-authorized share repurchase plan. No common stock repurchases were made during the quarter ending March 31, 2016 . Approximately $17,554 is available for future purchases. A roll forward of common shares outstanding is as follows: Three Months Ended March 31, March 29, 2016 2015 Balance at the beginning of the year 32,548,477 33,392,060 Repurchases — (164,852 ) Restricted share issuances 210,166 75,039 Balance at the end of the period 32,758,643 33,302,247

Equity-Based Compensation

Equity-Based Compensation	3 Months Ended
	Mar. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Equity-Based Compensation	Equity-Based Compensation At September 27, 2015, CTS had five equity-based compensation plans: the 2001 Stock Option Plan (“2001 Plan”), the Nonemployee Directors’ Stock Retirement Plan (“Directors’ Plan”), the 2004 Omnibus Long-Term Incentive Plan (“2004 Plan”), the 2009 Omnibus Equity and Performance Incentive Plan (“2009 Plan”), and the 2014 Performance & Incentive Plan (“2014 Plan”). Future grants can only be made under the 2014 Plan. The 2009 Plan, and previously the 2001 Plan and 2004 Plan, provides for grants of incentive stock options or nonqualified stock options to officers, key employees, and non-employee members of CTS’ Board of Directors. In addition, the 2014 Plan, the 2009 Plan and the 2004 Plan allow for grants of stock appreciation rights, restricted stock, RSUs, performance shares, performance units, and other stock awards. The following table summarizes the compensation expense included in selling, general and administrative expenses in the Condensed Consolidated Statements of Earnings related to equity-based compensation plans: Three Months Ended March 31, March 29, 2016 2015 Service-Based RSUs $ 512 $ 549 Performance-Based RSUs (155 ) 520 Market-Based RSUs (75 ) 451 Total $ 282 $ 1,520 Income tax benefit $ 106 $ 571 The following table summarizes the unrecognized compensation expense related to non-vested RSUs by type and the weighted-average period in which the expense is to be recognized: Unrecognized compensation Weighted- expense at average March 31, 2016 period Service-Based RSUs $ 2,711 1.6 years Performance-Based RSUs 673 1.6 years Market-Based RSUs 779 1.5 years Total $ 4,163 1.6 years CTS recognizes expense on a straight-line basis over the requisite service period for each separately vesting portion of the award as if the award was, in substance, multiple awards. The following table summarizes the maximum number of awards available to be granted under these plans as of March 31, 2016 : 2014 Plan 2009 Plan 2004 Plan Directors' Plan Awards originally available 1,500,000 3,400,000 6,500,000 N/A Stock options outstanding — — — — Options exercisable — — — — Performance-based options outstanding 330,000 — — — Service-based RSUs outstanding 270,545 171,164 78,947 25,985 Performance and market-based RSUs outstanding at 200% of target 335,300 86,120 — — RSUs vested and released 48,339 — — — Awards available for grant 515,816 257,284 78,947 25,985 Stock Options Stock options are exercisable in cumulative annual installments over a maximum 10 -year period, commencing at least one year from the date of grant. Stock options are generally granted with an exercise price equal to the market price of CTS’ stock on the date of grant, vest over four years , and have a 10 -year contractual life. The awards generally contain provisions to either accelerate vesting or allow vesting to continue on schedule upon retirement if certain service and age requirements are met. The awards also provide for accelerated vesting if there is a change in control event. CTS has no stock options exercisable or outstanding as of March 31, 2016 , other than the performance-based stock options described below. Performance-Based Stock Options During the second quarter of 2015, the Compensation Committee of the Board of Directors of the Company (the “Committee”) granted a total of 330,000 performance-based stock option awards (“Performance-Based Option Awards”) for certain CTS employees under the 2014 Plan. The Performance-Based Option Awards, which have a grant date of May 26, 2015, and an exercise price of $18.37 , are subject to the terms of the 2014 Plan. The Performance-Based Option Awards generally have a term of five years and generally will become exercisable (provided the optionee remains employed by CTS or an affiliate) upon CTS’ attainment of at least $600,000 in revenues during any of CTS’ four -fiscal-quarter trailing periods (as determined by the Committee) during the term. CTS has not recognized any expense on these Performance-Based Option Awards for the three months ended March 31, 2016 , since the revenue target is not deemed likely to be attained, based upon the CTS’ earnings history and current forecast. Service-Based Restricted Stock Units Service-based RSUs entitle the holder to receive one share of common stock for each unit when the unit vests. RSUs are issued to officers, key employees and non-employee directors as compensation. Generally, the RSUs vest over a three -year period. RSUs granted to non-employee directors vest one month after the grant date. Upon grant, each non-employee director elects to either receive the stock associated with the RSU immediately upon vesting, or defer receipt of the stock until his or her retirement from the Board of Directors. The fair value of the RSUs is equivalent to the trading value of CTS’ common stock on the grant date. A summary of the status of RSUs granted under the 2004, 2009, and 2014 plans is presented below: Three Months Ended March 31, 2016 Units Weighted Outstanding at January 1, 2016 471,196 $ 13.27 Granted 164,922 13.97 Released (97,298 ) 14.39 Forfeited (18,164 ) 17.69 Outstanding at March 31, 2016 520,656 $ 13.13 Releasable at March 31, 2016 277,081 $ 11.30 A summary of the status of RSUs granted under the Director's Plan is presented below: Units Weighted Outstanding at January 1, 2016 33,974 $ 11.75 Granted — — Released (7,989 ) 11.75 Forfeited — — Outstanding at March 31, 2016 25,985 $ 11.75 Releasable at March 31, 2016 25,985 $ 11.75 Performance-Based Restricted Stock Units CTS grants performance-based restricted stock unit awards to certain executives. Vesting may occur in the amount of zero percent to 200% of the grant target. Vesting is subject to certification of the financial results for the last year in the performance period by CTS’ independent auditors. The number of awards vesting is dependent upon CTS’ achievement of either sales growth targets or cash flow targets as defined in the agreements. The following table summarizes the targeted number of performance-based RSUs granted and actual units awarded as of and for the three months ended March 31, 2016 : Target Vesting Vesting Units Grant Date Units Granted Year Dependency Awarded February 11, 2013 36,750 2016 Sales growth 58,875 February 11, 2013 31,500 2016 Cash flow 59,819 February 14, 2014 15,071 2017 Sales growth — February 14, 2014 12,918 2017 Cash flow — February 13, 2015 24,150 2018 Sales growth — February 13, 2015 20,700 2018 Cash flow — February 16, 2016 34,528 2019 Sales growth — February 16, 2016 29,595 2019 Cash flow — Market-Based Restricted Stock Units CTS grants market-based restricted stock unit awards to certain executives and key employees. Vesting may occur in the amount of zero percent to 200% of the grant target. Vesting is subject to certification of the financial results for the last year of the target range by CTS’ independent auditors. The number of awards vesting is determined using a matrix based on a percentile ranking of CTS' total stockholder return with a peer group total shareholder return over the three -year period comprising the performance period. Vesting is tied exclusively to CTS' total stockholder return relative to peer group companies’ total stockholder return rates during the performance period. The following table summarizes the targeted number of market-based RSUs granted and actual units awarded as of and for the three months ended March 31, 2016 : Number of Target Vesting Peer Group Units Grant Date Units Granted Year Companies Awarded February 11, 2013 36,750 2016 20 61,466 February 11, 2013 32,500 2016 20 54,357 February 14, 2014 15,071 2017 15 — February 13, 2015 24,150 2018 23 — February 16, 2016 34,528 2019 17 —

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2016
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements CTS uses interest rate swaps to convert our line of credit’s variable rate of interest into a fixed rate and foreign currency forward contracts to hedge the effect of foreign currency changes on certain revenues and costs denominated in foreign currencies. These derivative financial instruments are measured at fair value on a recurring basis. The table below summarizes CTS’ financial assets (liabilities) that were measured at fair value at March 31, 2016 , and the realized gain (loss) recorded during the three month period ended March 31, 2016 : Quoted Prices in Active Significant Realized Carrying Markets for Other Significant Gain (Loss) for Value at Identical Observable Unobservable Three Months Ended March 31, Instruments Inputs Inputs March 31, 2016 (Level 1) (Level 2) (Level 3) 2016 Interest rate swaps $ (674 ) $ — $ (674 ) $ — $ 233 Foreign currency hedges $ 379 $ — $ 379 $ — $ (2 ) The table below summarizes the financial liability that was measured at fair value on a recurring basis as of December 31, 2015 , and the loss recorded during the year ended December 31, 2015 : Quoted Prices in Active Significant Realized Carrying Markets for Other Significant Gain (Loss) for Value at Identical Observable Unobservable Year Ended December 31, Instruments Inputs Inputs December 31, 2015 (Level 1) (Level 2) (Level 3) 2015 Interest rate swaps $ (768 ) $ — $ (768 ) $ — $ (768 ) The fair value of our interest rate swaps and foreign currency hedges were measured using standard valuation models using market-based observable inputs over the contractual terms, including forward yield curves, among others. There is a readily determinable market for these derivative instruments, but that market is not active and therefore they are classified within level 2 of the fair value hierarchy. The table below provides a reconciliation of the recurring financial assets (liabilities) for our derivative instruments: Foreign Interest Currency Rate Swaps Hedges Balance at January 1, 2015 $ (1,020 ) $ — Total gains (losses) for the period: Included in earnings 768 — Included in other comprehensive income (516 ) — Balance at December 31, 2015 $ (768 ) $ — Total gains (losses) for the period: Included in earnings 233 (2 ) Included in other comprehensive income (139 ) 381 Balance at March 31, 2016 $ (674 ) $ 379 CTS' long-term debt consists of the Revolving Credit Facility which is recorded at its carrying value. There is a readily determinable market for CTS' long-term debt and it is classified within Level 2 of the fair value hierarchy as the market is not deemed to be active. The fair value of long-term debt approximates carrying value and was determined by valuing a similar hypothetical coupon bond and attributing that value to our long-term debt under the Revolving Credit Facility.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The effective tax rates for the first quarter 2016 and 2015 are as follows: Three Months Ended March 31, March 29, 2016 2015 Effective tax rate 34.3 % 30.2 % CTS' effective income tax rate for the first quarter of 2016 was 34.3% , which reflects the change in the mix of earnings by jurisdiction and the impact of discrete items. CTS' effective income tax rate was 30.2% in the first quarter of 2015. The increase in the rate is primarily attributable to recording tax expense for withholding taxes on earnings in China that are not anticipated to be maintained in China. This is partially offset by a change in treatment of non-U.S. taxes paid as a credit against income tax rather than a deduction. CTS began recording tax expense for withholding taxes in China in the fourth quarter of 2015 and expects to continue this practice going forward. CTS’ continuing practice is to recognize interest and/or penalties related to income tax matters as income tax expense. For the three months ended March 31, 2016 , and March 29, 2015 , CTS accrued $184 and $0 of interest or penalties in income tax expense.

Business Combinations

Business Combinations	3 Months Ended
	Mar. 31, 2016
Business Combinations [Abstract]
Business Combinations	Business Combinations On March 11, 2016, CTS acquired all of the outstanding membership interests in CTG Advanced Materials, LLC (“CTG-AM”), a privately-held company, for $73 million in cash plus or minus a working capital adjustment. CTG-AM, formerly operated as H.C. Materials, is the market leading designer and manufacturer of single crystal piezoelectric materials, serving major original equipment manufacturers throughout the medical marketplace. These materials enable high definition ultrasound imaging (3D and 4D), as well as intravascular ultrasound applications. Other applications for these materials include wireless pacemakers, implantable hearing aids, and defense technologies. With the CTG-AM acquisition, CTS gains intellectual property and proprietary manufacturing methods that expand its offering of piezoelectric materials. This allows CTS to become the leading large-scale commercial producer of both single crystal materials and traditional piezoelectric ceramics. The purchase price of $72,830 , net of cash acquired of $4 , has been preliminarily allocated to the fair values of assets and liabilities acquired as of March 11, 2016. The allocation of purchase price is preliminary pending the completion of the appraisals of property, plant, and equipment, the valuation of intangible assets, and finalization of management's estimates regarding certain assets acquired. The final purchase price allocation may result in a materially different allocation than that recorded as of March 31, 2016. The following table summarizes the preliminary estimated fair values of the assets acquired and the liabilities assumed at the date of acquisition: Estimated Fair Values at March 11, 2016 Current assets $ 4,290 Property, plant and equipment 6,061 Other assets 37 Goodwill and intangible assets 63,110 Fair value of assets acquired 73,498 Less fair value of liabilities acquired (668 ) Net cash paid $ 72,830 Goodwill represents value the Company expects to be created by combining the operations of the acquired business with the Company's operations, including the expansion into markets within our existing business, access to new customers, and potential cost savings and synergies. Goodwill related to the acquisition is expected to be deductible for tax purposes. CTS incurred $804 in transaction related costs during the quarter ended March 31, 2016. These costs are included in selling. general, and administrative costs in our condensed consolidated statement of earnings. Results of operations for CTG -AM are included in our consolidated condensed financial statements beginning on March 11, 2016. The amount of net sales and net loss from CTG-AM since the acquisition date that have been included in the condensed consolidated statements of earnings are as follows: For the period March 11, 2016 through March 31, 2016 Net sales $ 758 Net loss $ (64 ) Supplemental Pro Forma Information The unaudited pro forma amounts below include CTG-AM's revenues and earnings that would have been included in our consolidated condensed statement of earnings had the acquisition date been January 1, 2015. Three Months Ended March 31, March 29, 2016 2015 Net sales $ 99,017 $ 101,601 Net earnings $ 7,766 $ 6,718 Earnings per share: Basic $ 0.24 $ 0.20 Diluted $ 0.24 $ 0.20 The pro forma results have been prepared for informational purposes only and include adjustments to amortize acquired intangible assets with finite life, reflect additional interest expense on debt used to fund the acquisition, and to record the tax consequences of the pro forma adjustments. Included in the pro forma results are nonrecurring expenses for transaction costs of $804 and additional cost of goods sold of $401 for inventory recognized at fair value as a result of acquisition-related adjustments.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	3 Months Ended
	Mar. 31, 2016
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements ASU 2016-9 "Compensation-Stock Compensation (Topic 718): Improvement to Employee Share Based Payment Accounting" In March 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2016-09, “Improvements to Employee Share-Based Payment Accounting.” This ASU simplifies several aspects of the accounting for share-based payment transactions, including the income tax consequences, forfeitures, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The guidance is effective for annual reporting periods beginning after December 15, 2016, including interim periods. Early adoption is permitted. An entity that elects early adoption of the amendment under this ASU must adopt all aspects of the amendment in the same period. We are currently evaluating the impact this guidance will have on our consolidated financial statements. ASU 2016-5 "Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships" In March 2016, the FASB issued ASU No. 2016-5 "Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships". This amendment clarifies that a change in the counterparty to a derivative instrument does not on its own require dedesignation of the hedging instrument under Topic 815, provided that all other hedge accounting criteria (including those in paragraphs 815-20-35-14 through 35-18) continue to be met. This update can be applied prospectively or retrospectively and is effective for fiscal years beginning after December 15, 2016, and interim periods within those years. This update is not expected to have an impact to our financial statements. ASU 2016-2 "Leases (Topic 842)" In February 2016, the FASB issued ASU 2016-2, "Leases (Topic 842)". This amendment created a new Topic under the accounting standards codification to account for the provisions of the ASU. This amendment is meant to provide transparency and to improve comparability between entities. The ASU requires companies to record an asset and liability to the balance sheet for leases that were formerly designated as operating leases as well as leases designated as financing leases. The provisions of the ASU predominately change the recognition of leases for lessees, the provisions do not substantially change the accounting for lessors. This ASU will supersede the provisions of Topic 840 Leases. The liability recorded for a lease is meant to recognize the lease payments and the asset as a right to use the underlying asset for the lease, including optional periods if it is reasonably certain the option will be exercised. Recording of the liability should be based on the present value of the lease payments. If a lease term is less than twelve month, a company is allowed to elect not to record the asset and liability. Expense related to these leases are to be amortized straight-line over the term of the lease. Additionally, the provisions of this ASU provide additional guidance on separating lease terms from maintenance and other type of provisions that provide a good or service, accounting for sale-leaseback provisions, and leveraged leases. Reporting in the cash flow statement remains virtually unchanged as the lease payments will continue to be recognized within financing activities and the change in interest within operating activities. Reporting for operating leases remain within operating activities. Additional qualitative and quantitative disclosures are required. These updates are required to be applied under a modified retrospective approach from the beginning of the earlier period presented. The modified approach provides optional practical expedients that may be elected, which will allow companies to continue to account for leases under the previous guidance for leases that commenced prior to the effective date. The provisions of this ASU are effective for fiscal years beginning after December 15, 2018, and interim periods within those periods. Early adoption is allowed. The provisions of this guidance are still being evaluated and the impact on CTS' financial statements has not yet been determined. ASU 2015-17, “Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes” In November 2015, FASB issued ASU 2015-17, "Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes". The amendment requires Company's to begin classifying all deferred income taxes as non-current. The provisions are expected to simplify the presentation of deferred income taxes and align the presentation of deferred income taxes with the International Financial Reporting Standards ("IFRS"). The amendments in this update are effective for annual periods beginning after December 16, 2016, and interim periods within those annual periods. The update can be applied prospectively or retrospectively. The Company early adopted the above guidance on January 1, 2016 and elected to retrospectively apply its provisions. This resulted in reclassification of the amounts in our December 31, 2015 Consolidated Balance Sheet as shown in Note 1 - Basis of Presentation. ASU 2015-16, “Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments” In September 2015, the FASB issued Accounting Standards Update (“ASU”) 2015-16, "Business Combinations (Topic 805) Simplifying the Accounting for Measurement-Period Adjustments of Inventory". The amendments clarify that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. The acquirer needs to record, in the same period’s financial statements, the effect of changes in depreciation, amortization, or other income as a result of the change to the provisional amounts as if the accounting had been completed at the acquisition date. This amendment requires an entity to present separately on the face of the income statement or disclose in the notes the portion of the amount recorded in current period earnings by line item, as if the provisional adjustments had been recognized as of the acquisition date. This ASU became effective for CTS on January 1, 2016 and its provisions did not have an impact on our financial statements. ASU 2015-14 , "Revenue from Contracts with Customers (Topic 606)" In August 2015, the FASB issued ASU 2015-14, "Accounting for Revenue from Contracts with Customers (Topic 606) ". The amended guidance deferred the effective date of the ASU 2014-09 "Revenue from Contracts with Customers (Topic 606) " to annual periods beginning after December 15, 2017, and interim periods within that reporting period. Early adoption is permitted for annual periods beginning after December 15, 2016, and interim periods within that annual period. The impact of ASU 2014-9 on our financial statements has not yet been determined.

Basis of Presentation (Policies

Basis of Presentation (Policies)	3 Months Ended
	Mar. 31, 2016
Accounting Policies [Abstract]
Basis of Presentation	The accompanying condensed consolidated financial statements have been prepared by CTS Corporation (“CTS” or “the Company”), without audit, pursuant to the rules and regulations of the Securities and Exchange Commission. Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles have been omitted pursuant to such rules and regulations. The unaudited condensed consolidated financial statements should be read in conjunction with the financial statements, notes thereto, and other information included in the Company’s Annual Report on Form 10‑K for the year ended December 31, 2015 . The accompanying unaudited condensed consolidated financial statements reflect, in the opinion of management, all adjustments (consisting of normal recurring items) necessary for a fair statement, in all material respects, of the financial position and results of operations for the periods presented. The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reported period. Actual results could differ materially from those estimates. The results of operations for the interim periods are not necessarily indicative of the results for the entire year.
Reclassifications	Reclassifications Certain prior period reclassifications have been made in the Condensed Consolidated Balance Sheet as a result of including our other post-retirement benefit plan liabilities in Post retirement obligations as well as the retrospective application of a new accounting pronouncement
Recent Accounting Pronouncements	ASU 2016-9 "Compensation-Stock Compensation (Topic 718): Improvement to Employee Share Based Payment Accounting" In March 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2016-09, “Improvements to Employee Share-Based Payment Accounting.” This ASU simplifies several aspects of the accounting for share-based payment transactions, including the income tax consequences, forfeitures, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The guidance is effective for annual reporting periods beginning after December 15, 2016, including interim periods. Early adoption is permitted. An entity that elects early adoption of the amendment under this ASU must adopt all aspects of the amendment in the same period. We are currently evaluating the impact this guidance will have on our consolidated financial statements. ASU 2016-5 "Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships" In March 2016, the FASB issued ASU No. 2016-5 "Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships". This amendment clarifies that a change in the counterparty to a derivative instrument does not on its own require dedesignation of the hedging instrument under Topic 815, provided that all other hedge accounting criteria (including those in paragraphs 815-20-35-14 through 35-18) continue to be met. This update can be applied prospectively or retrospectively and is effective for fiscal years beginning after December 15, 2016, and interim periods within those years. This update is not expected to have an impact to our financial statements. ASU 2016-2 "Leases (Topic 842)" In February 2016, the FASB issued ASU 2016-2, "Leases (Topic 842)". This amendment created a new Topic under the accounting standards codification to account for the provisions of the ASU. This amendment is meant to provide transparency and to improve comparability between entities. The ASU requires companies to record an asset and liability to the balance sheet for leases that were formerly designated as operating leases as well as leases designated as financing leases. The provisions of the ASU predominately change the recognition of leases for lessees, the provisions do not substantially change the accounting for lessors. This ASU will supersede the provisions of Topic 840 Leases. The liability recorded for a lease is meant to recognize the lease payments and the asset as a right to use the underlying asset for the lease, including optional periods if it is reasonably certain the option will be exercised. Recording of the liability should be based on the present value of the lease payments. If a lease term is less than twelve month, a company is allowed to elect not to record the asset and liability. Expense related to these leases are to be amortized straight-line over the term of the lease. Additionally, the provisions of this ASU provide additional guidance on separating lease terms from maintenance and other type of provisions that provide a good or service, accounting for sale-leaseback provisions, and leveraged leases. Reporting in the cash flow statement remains virtually unchanged as the lease payments will continue to be recognized within financing activities and the change in interest within operating activities. Reporting for operating leases remain within operating activities. Additional qualitative and quantitative disclosures are required. These updates are required to be applied under a modified retrospective approach from the beginning of the earlier period presented. The modified approach provides optional practical expedients that may be elected, which will allow companies to continue to account for leases under the previous guidance for leases that commenced prior to the effective date. The provisions of this ASU are effective for fiscal years beginning after December 15, 2018, and interim periods within those periods. Early adoption is allowed. The provisions of this guidance are still being evaluated and the impact on CTS' financial statements has not yet been determined. ASU 2015-17, “Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes” In November 2015, FASB issued ASU 2015-17, "Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes". The amendment requires Company's to begin classifying all deferred income taxes as non-current. The provisions are expected to simplify the presentation of deferred income taxes and align the presentation of deferred income taxes with the International Financial Reporting Standards ("IFRS"). The amendments in this update are effective for annual periods beginning after December 16, 2016, and interim periods within those annual periods. The update can be applied prospectively or retrospectively. The Company early adopted the above guidance on January 1, 2016 and elected to retrospectively apply its provisions. This resulted in reclassification of the amounts in our December 31, 2015 Consolidated Balance Sheet as shown in Note 1 - Basis of Presentation. ASU 2015-16, “Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments” In September 2015, the FASB issued Accounting Standards Update (“ASU”) 2015-16, "Business Combinations (Topic 805) Simplifying the Accounting for Measurement-Period Adjustments of Inventory". The amendments clarify that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. The acquirer needs to record, in the same period’s financial statements, the effect of changes in depreciation, amortization, or other income as a result of the change to the provisional amounts as if the accounting had been completed at the acquisition date. This amendment requires an entity to present separately on the face of the income statement or disclose in the notes the portion of the amount recorded in current period earnings by line item, as if the provisional adjustments had been recognized as of the acquisition date. This ASU became effective for CTS on January 1, 2016 and its provisions did not have an impact on our financial statements. ASU 2015-14 , "Revenue from Contracts with Customers (Topic 606)" In August 2015, the FASB issued ASU 2015-14, "Accounting for Revenue from Contracts with Customers (Topic 606) ". The amended guidance deferred the effective date of the ASU 2014-09 "Revenue from Contracts with Customers (Topic 606) " to annual periods beginning after December 15, 2017, and interim periods within that reporting period. Early adoption is permitted for annual periods beginning after December 15, 2016, and interim periods within that annual period. The impact of ASU 2014-9 on our financial statements has not yet been determined.

Basis of Presentation (Tables)

Basis of Presentation (Tables)	3 Months Ended
	Mar. 31, 2016
Accounting Policies [Abstract]
Schedule Prior Period Adjustments	The chart below quantifies the effects of these reclassification adjustments on our December 31, 2015, financial statements: At December 31, 2015 Consolidated Balance Sheet Line Item As previously reported Reclassification adjustment As currently reported Other current assets $ 15,888 $ (6,025 ) $ 9,863 Deferred income taxes $ 58,544 $ 5,265 $ 63,809 Accrued liabilities $ (53,905 ) $ 6,731 $ (47,174 ) Post retirement obligations $ (2,703 ) $ (4,527 ) $ (7,230 ) Other long-term obligations $ (7,725 ) $ (1,444 ) $ (9,169 )

Accounts Receivable (Tables)

Accounts Receivable (Tables)	3 Months Ended
	Mar. 31, 2016
Receivables [Abstract]
Components of Accounts Receivable	The components of accounts receivable are as follows: As of March 31, December 31, 2016 2015 Accounts receivable, gross $ 64,955 $ 54,696 Less: Allowance for doubtful accounts (170 ) (133 ) Accounts receivable, net $ 64,785 $ 54,563

Inventories (Tables)

Inventories (Tables)	3 Months Ended
	Mar. 31, 2016
Inventory Disclosure [Abstract]
Summary of Inventories	Inventories consist of the following: As of March 31, December 31, 2016 2015 Finished goods $ 5,851 $ 6,972 Work-in-process 8,405 6,828 Raw materials 17,813 16,991 Less: Inventory reserves (6,007 ) (6,191 ) Inventories, net $ 26,062 $ 24,600

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	3 Months Ended
	Mar. 31, 2016
Property, Plant and Equipment [Abstract]
Summary of Property, Plant and Equipment	Property, plant and equipment is comprised of the following: As of March 31, December 31, 2016 2015 Land $ 2,401 $ 2,401 Buildings and improvements 66,533 65,731 Machinery and equipment 200,482 191,212 Less: Accumulated depreciation (191,960 ) (189,472 ) Property, plant and equipment, net $ 77,456 $ 69,872

Retirement Plans (Tables)

Retirement Plans (Tables)	3 Months Ended
	Mar. 31, 2016
Compensation and Retirement Disclosure [Abstract]
Net Pension Income or Postretirement Expense	Net pension income for our domestic and foreign plans was as follows: Three Months Ended March 31, March 29, 2016 2015 Net pension (income) $ (392 ) $ (528 ) Net pension (income) expense breakdown for our domestic and foreign plans include the following components: Domestic Pension Plans Foreign Pension Plans Three Months Ended Three Months Ended March 31, March 29, March 31, March 29, 2016 2015 2016 2015 Service cost $ 22 $ 42 $ 12 $ 17 Interest cost 2,756 2,815 11 123 Expected return on plan assets (1) (4,744 ) (5,068 ) 7 (133 ) Amortization of loss 1,498 1,585 34 91 Other cost due to retirement 12 — — — (Income) expense, net $ (456 ) $ (626 ) $ 64 $ 98 (1) Expected return on plan assets is net of expected investment expenses and certain administrative expenses. Net post-retirement expense for our post-retirement plan includes the following components: Three Months Ended March 31, March 29, 2016 2015 Other post-retirement benefit plan Service cost $ 1 $ 1 Interest cost 52 51 Amortization of gain (38 ) (25 ) Post-retirement expense $ 15 $ 27

Other Intangible Assets (Tables

Other Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Summary of other intangible assets	Intangible assets consist of the following components: As of March 31, 2016 Gross Accumulated Net Amount Amortized intangible assets: Customer lists/relationships $ 51,804 $ (27,722 ) $ 24,082 Patents 10,319 (10,319 ) — Technology and other intangibles 45,070 (5,490 ) 39,580 Other intangible assets, net $ 107,193 $ (43,531 ) $ 63,662 Amortization expense for the three months ended March 31, 2016 $ 1,095 As of December 31, 2015 Gross Accumulated Net Amount Amortized intangible assets: Customer lists/relationships $ 51,804 $ (27,101 ) $ 24,703 Patents 10,319 (10,319 ) — Technology and other intangibles 12,871 (5,016 ) 7,855 In process research and development 2,200 — 2,200 Other intangible assets, net $ 77,194 $ (42,436 ) $ 34,758 Amortization expense for the three months ended March 29, 2015 $ 973
Summary of amortization expense remaining for other intangible assets	Amortization expense remaining for other intangible assets is as follows: Amortization 2016 $ 4,132 2017 5,424 2018 5,340 2019 5,332 2020 5,332 Thereafter 38,102 Total amortization expense $ 63,662

Costs Associated with Exit an31

Costs Associated with Exit and Restructuring Activities (Tables)	3 Months Ended
	Mar. 31, 2016
Restructuring Reserve Activity	The following table displays the restructuring reserve activity for the period ended March 31, 2016 : June 2013 Plan and April 2014 Plan Restructuring liability at January 1, 2016 $ 826 Restructuring and restructuring-related charges, excluding asset impairments and write-offs — Cost paid — Restructuring liability at March 31, 2016 $ 826
June 2013 Plan and April 2014 Plan
Restructuring and Restructuring Related Charges of Actual Costs	Total restructuring, impairment and restructuring related charges were as follows: Three Months Ended March 31, March 29, 2016 2015 Restructuring-related charges (1) $ — $ 75 Restructuring and impairment charges — 738 Total restructuring, impairment, and restructuring-related charges $ — $ 813 (1) Restructuring-related charges are included in costs of goods sold
April 2014 Plan
Restructuring and Restructuring Related Charges of Actual Costs	otal restructuring, impairment and restructuring related charges under the April 2014 Plan were as follows: Three Months Ended March 31, March 29, 2016 2015 Restructuring-related charges $ — $ — Restructuring and impairment charges — 361 Total restructuring, impairment, and restructuring related charges $ — $ 361
Schedule of Planned and Actual Costs Incurred to Date	The following table displays the planned restructuring and restructuring-related charges associated with the April 2014 Plan, as well as a summary of the actual costs incurred through March 31, 2016 : Actual costs Planned incurred through April 2014 Plan Costs March 31, 2016 Inventory write-down $ 850 $ — Equipment relocation 1,800 444 Other charges 1,400 113 Restructuring-related charges, included in cost of goods sold $ 4,050 $ 557 Workforce reduction $ 4,200 $ 4,423 Other charges, including pension termination costs 1,700 3,413 Restructuring and impairment charges $ 5,900 $ 7,836 Total restructuring, impairment and restructuring related charges $ 9,950 $ 8,393
June 2013 Plan
Restructuring and Restructuring Related Charges of Actual Costs	Under the June 2013 Plan, total restructuring, impairment and restructuring related charges incurred were as follows: Three Months Ended March 31, March 29, 2016 2015 Restructuring-related charges $ — $ 75 Restructuring and impairment charges — 377 Total restructuring, impairment, and restructuring-related charges $ — $ 452
Schedule of Planned and Actual Costs Incurred to Date	The following table displays the planned restructuring and restructuring-related charges associated with the June 2013 Plan and a summary of the actual costs incurred through March 31, 2016 : Planned Actual costs June 2013 Plan Costs March 31, 2016 Inventory write-down $ 800 $ 1,143 Equipment relocation 900 1,792 Other charges 100 702 Restructuring-related charges, included in cost of goods sold $ 1,800 $ 3,637 Workforce reduction $ 10,150 $ 9,615 Asset impairment charge 3,000 4,139 Other charges, including pension termination costs 7,650 10,205 Restructuring and impairment charges $ 20,800 $ 23,959 Total restructuring and restructuring-related charges $ 22,600 $ 27,596

Accrued Liabilities (Tables)

Accrued Liabilities (Tables)	3 Months Ended
	Mar. 31, 2016
Other Liabilities Disclosure [Abstract]
Components of Accrued Liabilities	The components of accrued liabilities are as follows: As of March 31, December 31, 2016 2015 Accrued product related costs $ 5,126 $ 5,245 Accrued income taxes 9,617 8,845 Accrued property and other taxes 1,807 1,838 Accrued outside commissions 1,293 97 Accrued professional fees 1,765 704 Accrued building improvement costs 1,702 1,768 Dividends payable 1,310 1,302 Remediation reserves 20,819 20,603 Other accrued liabilities 5,414 6,772 Total accrued liabilities $ 48,853 $ 47,174

Debt (Tables)

Debt (Tables)	3 Months Ended
	Mar. 31, 2016
Debt Disclosure [Abstract]
Summary of Long-Term Debt	Long-term debt was comprised of the following: As of March 31, December 31, 2016 2015 Revolving credit facility due in 2020 $ 141,300 $ 90,700 Weighted average interest rate 1.8 % 1.5 % Amount available $ 56,385 $ 106,985 Total credit facility $ 200,000 $ 200,000 Standby letters of credit $ 2,315 $ 2,315 Commitment fee percentage per annum 0.30 % 0.25 %

Derivative Financial Instrume34

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The location and fair values of derivative instruments designated as hedging instruments in the Condensed Consolidated Balance Sheets as of March 31, 2016 , are shown in the following table: As of March 31, December 31, 2016 2015 Foreign currency hedges reported in Other current assets $ 379 $ — Interest rate swaps reported in Accrued liabilities $ (674 ) $ (768 )
Derivative Instruments, Gain (Loss)	The effect of derivative instruments on the Condensed Consolidated Statements of Earnings is as follows: Three Months Ended March 31, March 29, 2016 2015 Foreign Exchange Contracts: Loss recognized in Net Sales $ (7 ) $ — Gain recognized in Cost of Goods Sold 1 — Gain recognized Selling, General and Administrative expense 4 — Gain recognized in Other (expense) income 6 — Interest Rate Swaps: Interest Expense $ 152 $ 190 Total $ 156 $ 190 The table below provides a reconciliation of the recurring financial assets (liabilities) for our derivative instruments: Foreign Interest Currency Rate Swaps Hedges Balance at January 1, 2015 $ (1,020 ) $ — Total gains (losses) for the period: Included in earnings 768 — Included in other comprehensive income (516 ) — Balance at December 31, 2015 $ (768 ) $ — Total gains (losses) for the period: Included in earnings 233 (2 ) Included in other comprehensive income (139 ) 381 Balance at March 31, 2016 $ (674 ) $ 379

Accumulated Other Comprehensi35

Accumulated Other Comprehensive (Loss) Income (Tables)	3 Months Ended
	Mar. 31, 2016
Equity [Abstract]
Schedule of Accumulated Other Comprehensive (Loss) Income	The components of accumulated other comprehensive (loss) income for the three months ended March 31, 2016 , are as follows: Gain (Loss) As of Gain (Loss) reclassified As of December 31, Recognized from AOCI March 31, 2015 in OCI to income 2016 Changes in fair market value of hedges: Gross $ (768 ) $ 242 $ 231 $ (295 ) Income tax (benefit) 289 (91 ) (88 ) 110 Net (479 ) 151 143 (185 ) Changes in unrealized pension cost: Gross (161,719 ) — 1,451 (160,268 ) Income tax (benefit) 64,361 (543 ) 63,818 Net (97,358 ) — 908 (96,450 ) Cumulative translation adjustment: Gross (1,279 ) (406 ) — (1,685 ) Income tax (benefit) 111 (3 ) — 108 Net (1,168 ) (409 ) — (1,577 ) Total accumulated other comprehensive (loss) income $ (99,005 ) $ (258 ) $ 1,051 $ (98,212 ) The components of other comprehensive (loss) income for the three months ended March 29, 2015 , are as follows: Gain (Loss) As of Gain (Loss) reclassified As of December 31, Recognized from AOCI March 29, 2014 in OCI to income 2015 Changes in fair market value of hedges: Gross $ (1,020 ) $ (327 ) $ 190 $ (1,157 ) Income tax (benefit) 384 123 (72 ) 435 Net (636 ) (204 ) 118 (722 ) Changes in unrealized pension cost: Gross (169,291 ) 1,930 — (167,361 ) Income tax (benefit) 65,124 (673 ) — 64,451 Net (104,167 ) 1,257 — (102,910 ) Cumulative translation adjustment: Gross 245 (736 ) — (491 ) Income tax (benefit) 325 (367 ) — (42 ) Net 570 (1,103 ) — (533 ) Total accumulated other comprehensive (loss) income $ (104,233 ) $ (50 ) $ 118 $ (104,165 )

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2016
Stockholders' Equity Note [Abstract]
Summary of Share Count and Par Value Data Related to Shareholders' Equity	Share count and par value data related to shareholders’ equity are as follows: As of March 31, December 31, 2016 2015 Preferred Stock Par value per share No par value No par value Shares authorized 25,000,000 25,000,000 Shares outstanding — — Common Stock Par value per share No par value No par value Shares authorized 75,000,000 75,000,000 Shares issued 56,452,665 56,242,499 Shares outstanding 32,758,643 32,548,477 Treasury stock Shares held 23,694,022 23,694,022
Summary of Common Shares Outstanding	A roll forward of common shares outstanding is as follows: Three Months Ended March 31, March 29, 2016 2015 Balance at the beginning of the year 32,548,477 33,392,060 Repurchases — (164,852 ) Restricted share issuances 210,166 75,039 Balance at the end of the period 32,758,643 33,302,247

Equity-Based Compensation (Tabl

Equity-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Summary of Equity-Based Compensation Expense	The following table summarizes the compensation expense included in selling, general and administrative expenses in the Condensed Consolidated Statements of Earnings related to equity-based compensation plans: Three Months Ended March 31, March 29, 2016 2015 Service-Based RSUs $ 512 $ 549 Performance-Based RSUs (155 ) 520 Market-Based RSUs (75 ) 451 Total $ 282 $ 1,520 Income tax benefit $ 106 $ 571
Schedule of Unrecognized Equity-Based Compensation Expense	The following table summarizes the unrecognized compensation expense related to non-vested RSUs by type and the weighted-average period in which the expense is to be recognized: Unrecognized compensation Weighted- expense at average March 31, 2016 period Service-Based RSUs $ 2,711 1.6 years Performance-Based RSUs 673 1.6 years Market-Based RSUs 779 1.5 years Total $ 4,163 1.6 years
Summary of Status of Equity-Based Compensation Plans	The following table summarizes the maximum number of awards available to be granted under these plans as of March 31, 2016 : 2014 Plan 2009 Plan 2004 Plan Directors' Plan Awards originally available 1,500,000 3,400,000 6,500,000 N/A Stock options outstanding — — — — Options exercisable — — — — Performance-based options outstanding 330,000 — — — Service-based RSUs outstanding 270,545 171,164 78,947 25,985 Performance and market-based RSUs outstanding at 200% of target 335,300 86,120 — — RSUs vested and released 48,339 — — — Awards available for grant 515,816 257,284 78,947 25,985
Summary of Service-Based Restricted Stock Units	A summary of the status of RSUs granted under the 2004, 2009, and 2014 plans is presented below: Three Months Ended March 31, 2016 Units Weighted Outstanding at January 1, 2016 471,196 $ 13.27 Granted 164,922 13.97 Released (97,298 ) 14.39 Forfeited (18,164 ) 17.69 Outstanding at March 31, 2016 520,656 $ 13.13 Releasable at March 31, 2016 277,081 $ 11.30 A summary of the status of RSUs granted under the Director's Plan is presented below: Units Weighted Outstanding at January 1, 2016 33,974 $ 11.75 Granted — — Released (7,989 ) 11.75 Forfeited — — Outstanding at March 31, 2016 25,985 $ 11.75 Releasable at March 31, 2016 25,985 $ 11.75
Schedule of Components of Performance-Based RSU's	The following table summarizes the targeted number of performance-based RSUs granted and actual units awarded as of and for the three months ended March 31, 2016 : Target Vesting Vesting Units Grant Date Units Granted Year Dependency Awarded February 11, 2013 36,750 2016 Sales growth 58,875 February 11, 2013 31,500 2016 Cash flow 59,819 February 14, 2014 15,071 2017 Sales growth — February 14, 2014 12,918 2017 Cash flow — February 13, 2015 24,150 2018 Sales growth — February 13, 2015 20,700 2018 Cash flow — February 16, 2016 34,528 2019 Sales growth — February 16, 2016 29,595 2019 Cash flow —
Schedule of Components of Market-Based RSU's	The following table summarizes the targeted number of market-based RSUs granted and actual units awarded as of and for the three months ended March 31, 2016 : Number of Target Vesting Peer Group Units Grant Date Units Granted Year Companies Awarded February 11, 2013 36,750 2016 20 61,466 February 11, 2013 32,500 2016 20 54,357 February 14, 2014 15,071 2017 15 — February 13, 2015 24,150 2018 23 — February 16, 2016 34,528 2019 17 —

Fair Value Measurement (Tables)

Fair Value Measurement (Tables)	3 Months Ended
	Mar. 31, 2016
Fair Value Disclosures [Abstract]
Summary of Financial Liability Measured at Fair Value on a Recurring Basis	The table below summarizes CTS’ financial assets (liabilities) that were measured at fair value at March 31, 2016 , and the realized gain (loss) recorded during the three month period ended March 31, 2016 : Quoted Prices in Active Significant Realized Carrying Markets for Other Significant Gain (Loss) for Value at Identical Observable Unobservable Three Months Ended March 31, Instruments Inputs Inputs March 31, 2016 (Level 1) (Level 2) (Level 3) 2016 Interest rate swaps $ (674 ) $ — $ (674 ) $ — $ 233 Foreign currency hedges $ 379 $ — $ 379 $ — $ (2 ) The table below summarizes the financial liability that was measured at fair value on a recurring basis as of December 31, 2015 , and the loss recorded during the year ended December 31, 2015 : Quoted Prices in Active Significant Realized Carrying Markets for Other Significant Gain (Loss) for Value at Identical Observable Unobservable Year Ended December 31, Instruments Inputs Inputs December 31, 2015 (Level 1) (Level 2) (Level 3) 2015 Interest rate swaps $ (768 ) $ — $ (768 ) $ — $ (768 )
Reconciliation of Recurring Financial Liability Related to Interest Rate Swaps	The effect of derivative instruments on the Condensed Consolidated Statements of Earnings is as follows: Three Months Ended March 31, March 29, 2016 2015 Foreign Exchange Contracts: Loss recognized in Net Sales $ (7 ) $ — Gain recognized in Cost of Goods Sold 1 — Gain recognized Selling, General and Administrative expense 4 — Gain recognized in Other (expense) income 6 — Interest Rate Swaps: Interest Expense $ 152 $ 190 Total $ 156 $ 190 The table below provides a reconciliation of the recurring financial assets (liabilities) for our derivative instruments: Foreign Interest Currency Rate Swaps Hedges Balance at January 1, 2015 $ (1,020 ) $ — Total gains (losses) for the period: Included in earnings 768 — Included in other comprehensive income (516 ) — Balance at December 31, 2015 $ (768 ) $ — Total gains (losses) for the period: Included in earnings 233 (2 ) Included in other comprehensive income (139 ) 381 Balance at March 31, 2016 $ (674 ) $ 379

Income Taxes (Tables)

Income Taxes (Tables)	3 Months Ended
	Mar. 31, 2016
Income Tax Disclosure [Abstract]
Reconciliation of Effective Income Taxes Rate	The effective tax rates for the first quarter 2016 and 2015 are as follows: Three Months Ended March 31, March 29, 2016 2015 Effective tax rate 34.3 % 30.2 %

Business Combinations (Tables)

Business Combinations (Tables)	3 Months Ended
	Mar. 31, 2016
Business Combinations [Abstract]
Schedule of Business Acquisitions, by Acquisition	The amount of net sales and net loss from CTG-AM since the acquisition date that have been included in the condensed consolidated statements of earnings are as follows: For the period March 11, 2016 through March 31, 2016 Net sales $ 758 Net loss $ (64 ) The following table summarizes the preliminary estimated fair values of the assets acquired and the liabilities assumed at the date of acquisition: Estimated Fair Values at March 11, 2016 Current assets $ 4,290 Property, plant and equipment 6,061 Other assets 37 Goodwill and intangible assets 63,110 Fair value of assets acquired 73,498 Less fair value of liabilities acquired (668 ) Net cash paid $ 72,830
Business Acquisition, Pro Forma Information	Three Months Ended March 31, March 29, 2016 2015 Net sales $ 99,017 $ 101,601 Net earnings $ 7,766 $ 6,718 Earnings per share: Basic $ 0.24 $ 0.20 Diluted $ 0.24 $ 0.20

Basis of Presentation (Details)

Basis of Presentation (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Consolidated Balance Sheet Line Item
Other current assets	$ 13,843	$ 9,863
Deferred income taxes	59,526	63,809
Accrued liabilities	(48,853)	(47,174)
Post retirement obligations	(7,187)	(7,230)
Other long-term obligations	$ (3,071)	(9,169)
As previously reported
Consolidated Balance Sheet Line Item
Other current assets		15,888
Deferred income taxes		58,544
Accrued liabilities		(53,905)
Post retirement obligations		(2,703)
Other long-term obligations		(7,725)
Reclassification adjustment
Consolidated Balance Sheet Line Item
Other current assets		(6,025)
Deferred income taxes		5,265
Accrued liabilities		6,731
Post retirement obligations		(4,527)
Other long-term obligations		$ (1,444)

Accounts Receivable - Component

Accounts Receivable - Components of Accounts Receivable (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Accounts Receivable
Accounts receivable, gross	$ 64,955	$ 54,696
Less: Allowance for doubtful accounts	(170)	(133)
Accounts receivable, net	$ 64,785	$ 54,563

Inventories - Summary of Invent

Inventories - Summary of Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Inventories
Finished goods	$ 5,851	$ 6,972
Work-in-process	8,405	6,828
Raw materials	17,813	16,991
Less: Inventory reserves	(6,007)	(6,191)
Inventories, net	$ 26,062	$ 24,600

Property, Plant and Equipment -

Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Property, plant and equipment
Less: Accumulated depreciation	$ (191,960)	$ (189,472)
Property, plant and equipment, net	77,456	69,872
Land
Property, plant and equipment
Property, plant and equipment gross	2,401	2,401
Buildings and improvements
Property, plant and equipment
Property, plant and equipment gross	66,533	65,731
Machinery and equipment
Property, plant and equipment
Property, plant and equipment gross	$ 200,482	$ 191,212

Retirement Plans - Net Pension

Retirement Plans - Net Pension Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 29, 2015
Pension Plans
Defined Benefit Plan Disclosure
Net pension (income)	$ (392)	$ (528)

Retirement Plans - Net Pensio46

Retirement Plans - Net Pension Income Domestic and Foreign (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 29, 2015
Pension Plans
Net pension expense (income)
(Income) expense, net	$ (392)	$ (528)
Domestic Pension Plans
Net pension expense (income)
Service cost	22	42
Interest cost	2,756	2,815
Expected return on plan assets	(4,744)	(5,068)
Amortization of loss	1,498	1,585
Other cost due to retirement	12	0
(Income) expense, net	(456)	(626)
Foreign Pension Plans
Net pension expense (income)
Service cost	12	17
Interest cost	11	123
Expected return on plan assets	7	(133)
Amortization of loss	34	91
Other cost due to retirement	0	0
(Income) expense, net	$ 64	$ 98

Retirement Plans - Other Postre

Retirement Plans - Other Postretirement Benefit Plan (Details) - Other post-retirement benefit plan - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 29, 2015
Defined Benefit Plan Disclosure
Service cost	$ 1	$ 1
Interest cost	52	51
Amortization of gain	(38)	(25)
(Income) expense, net	$ 15	$ 27

Other Intangible Assets - Summa

Other Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 29, 2015	Dec. 31, 2015
Other Intangible Assets
Gross Carrying Amount	$ 107,193		$ 77,194
Accumulated Amortization	(43,531)		(42,436)
Total amortization expense	63,662		34,758
Amortization expense	1,095	$ 973
Customer lists/relationships
Other Intangible Assets
Gross Carrying Amount	51,804		51,804
Accumulated Amortization	(27,722)		(27,101)
Total amortization expense	24,082		24,703
Patents
Other Intangible Assets
Gross Carrying Amount	10,319		10,319
Accumulated Amortization	(10,319)		(10,319)
Total amortization expense	0		0
Technology and other intangibles
Other Intangible Assets
Gross Carrying Amount	45,070		12,871
Accumulated Amortization	(5,490)		(5,016)
Total amortization expense	$ 39,580		7,855
In process research and development
Other Intangible Assets
Gross Carrying Amount			2,200
Accumulated Amortization			0
Total amortization expense			$ 2,200

Other Intangible Assets - Sum49

Other Intangible Assets - Summary of Amortization Expense (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule
2,016	$ 4,132
2,017	5,424
2,018	5,340
2,019	5,332
2,020	5,332
Thereafter	38,102
Total amortization expense	$ 63,662	$ 34,758

Costs Associated with Exit an50

Costs Associated with Exit and Restructuring Activities - Summary (Details) - June 2013 Plan and April 2014 Plan - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 29, 2015
Total restructuring, impairment and restructuring related charges
Restructuring and impairment charges	$ 0	$ 813
Cost of Goods
Total restructuring, impairment and restructuring related charges
Restructuring and impairment charges	0	75
Operating Earnings
Total restructuring, impairment and restructuring related charges
Restructuring and impairment charges	$ 0	$ 738

Costs Associated with Exit an51

Costs Associated with Exit and Restructuring Activities - April 2014 Plan (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2016USD ($)	Mar. 29, 2015USD ($)	Dec. 31, 2015employee	Jun. 28, 2015USD ($)
April 2014 Plan
Restructuring charges
Planned Costs	$ 9,950
Actual costs incurred	8,393
Elimination of workforce | employee			120
Total restructuring, impairment and restructuring related charges
Restructuring and impairment charges	0	$ 361
April 2014 Plan | Cost of Goods
Restructuring charges
Planned Costs	4,050
Actual costs incurred	557
Total restructuring, impairment and restructuring related charges
Restructuring related charges	0	0
April 2014 Plan | Operating Earnings
Restructuring charges
Planned Costs	5,900
Actual costs incurred	7,836
Total restructuring, impairment and restructuring related charges
Restructuring and impairment charges	0	$ 361
April 2014 Plan | Inventory write-down | Cost of Goods
Restructuring charges
Planned Costs	850
Actual costs incurred	0
April 2014 Plan | Equipment relocation | Cost of Goods
Restructuring charges
Planned Costs	1,800
Actual costs incurred	444
April 2014 Plan | Other charges | Cost of Goods
Restructuring charges
Planned Costs	1,400
Actual costs incurred	113
April 2014 Plan | Workforce reduction | Operating Earnings
Restructuring charges
Planned Costs	4,200
Actual costs incurred	4,423
April 2014 Plan | Other charges, including pension termination costs | Operating Earnings
Restructuring charges
Planned Costs	1,700
Actual costs incurred	$ 3,413
April 2014 Plan Amendment
Restructuring charges
Planned Costs				$ 4,250
April 2014 Plan Amendment | Equipment relocation
Restructuring charges
Planned Costs				2,950
April 2014 Plan Amendment | General and administrative expense
Restructuring charges
Planned Costs				$ 1,300

Costs Associated with Exit an52

Costs Associated with Exit and Restructuring Activities - June 2013 Plan (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2016USD ($)	Mar. 29, 2015USD ($)	Dec. 31, 2015employee	Dec. 31, 2014USD ($)employee
June 2013 Plan
Restructuring charges
Elimination of workforce | employee			350
Planned Costs	$ 22,600
Actual costs incurred	27,596
Total restructuring, impairment and restructuring related charges
Restructuring and impairment charges	0	$ 452
June 2013 Plan | Cost of Goods
Restructuring charges
Planned Costs	1,800
Actual costs incurred	3,637
Total restructuring, impairment and restructuring related charges
Restructuring related charges	0	75
June 2013 Plan | Operating Earnings
Restructuring charges
Planned Costs	20,800
Actual costs incurred	23,959
Total restructuring, impairment and restructuring related charges
Restructuring and impairment charges	0	$ 377
June 2013 Plan | Inventory write-down | Cost of Goods
Restructuring charges
Planned Costs	800
Actual costs incurred	1,143
June 2013 Plan | Equipment relocation | Cost of Goods
Restructuring charges
Planned Costs	900
Actual costs incurred	1,792
June 2013 Plan | Other charges | Cost of Goods
Restructuring charges
Planned Costs	100
Actual costs incurred	702
June 2013 Plan | Workforce reduction | Operating Earnings
Restructuring charges
Planned Costs	10,150
Actual costs incurred	9,615
June 2013 Plan | Asset impairment charge | Operating Earnings
Restructuring charges
Planned Costs	3,000
Actual costs incurred	4,139
June 2013 Plan | Other charges, including pension termination costs | Operating Earnings
Restructuring charges
Planned Costs	7,650
Actual costs incurred	$ 10,205
Amended June 2013 Plan
Restructuring charges
Planned Costs				$ 4,000
Amended June 2013 Plan | Workforce reduction
Restructuring charges
Elimination of workforce | employee				130
Foreign Pension Plans | Amended June 2013 Plan | UNITED KINGDOM
Restructuring charges
Planned Costs				$ 2,000
Foreign Pension Plans | Amended June 2013 Plan | Asset impairment charge
Restructuring charges
Planned Costs				$ 2,000

Costs Associated with Exit an53

Costs Associated with Exit and Restructuring Activities - Restructuring Reserve Activity (Details) - June 2013 Plan and April 2014 Plan $ in Thousands	3 Months Ended
	Mar. 31, 2016USD ($)
Restructuring reserve activity
Restructuring liability at beginning	$ 826
Restructuring and restructuring-related charges	0
Cost paid	0
Restructuring liability at ending	$ 826

Accrued Liabilities - Component

Accrued Liabilities - Components of Accrued Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Accrued Liabilities
Accrued product related costs	$ 5,126	$ 5,245
Accrued income taxes	9,617	8,845
Accrued property and other taxes	1,807	1,838
Accrued outside commissions	1,293	97
Accrued professional fees	1,765	704
Accrued building improvement costs	1,702	1,768
Dividends payable	1,310	1,302
Remediation reserves	20,819	20,603
Other accrued liabilities	5,414	6,772
Total accrued liabilities	$ 48,853	$ 47,174

Debt - Long-Term Debt (Details)

Debt - Long-Term Debt (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Aug. 10, 2015
Long-term debt
Revolving credit facility	$ 141,300,000	$ 90,700,000
Line of Credit | Revolving Credit Facility Due 2020
Long-term debt
Revolving credit facility	$ 141,300,000	$ 90,700,000
Weighted-average interest rate	1.80%	1.50%
Amount available	$ 56,385,000	$ 106,985,000
Total credit facility	200,000,000	200,000,000	$ 200,000,000
Standby letters of credit	$ 2,315,000	$ 2,315,000
Commitment fee percentage per annum	0.30%	0.25%

Debt - Narratives (Details)

Debt - Narratives (Details) - USD ($)	Aug. 10, 2015	Mar. 31, 2016	Mar. 29, 2015	Dec. 31, 2015
Line of Credit Facility
Debt amortization expense		$ 32,000	$ 50,000
Line of Credit | Revolving Credit Facility Due 2020
Line of Credit Facility
Debt instrument, term	5 years
Line of credit maximum borrowing amount	$ 200,000,000	$ 200,000,000		$ 200,000,000
Line of credit facility contingent increase to maximum borrowing capacity	100,000,000
Commitment fee percentage per annum		0.30%		0.25%
Line of Credit | Revolving Credit Facility Due 2020 Swingline Sublimit
Line of Credit Facility
Line of credit maximum borrowing amount	15,000,000
Line of Credit | Revolving Credit Facility Due 2020 Letter Of Credit Sublimit
Line of Credit Facility
Line of credit maximum borrowing amount	$ 10,000,000
Minimum | Line of Credit | Revolving Credit Facility Due 2020
Line of Credit Facility
Commitment fee percentage per annum	0.20%
Maximum | Line of Credit | Revolving Credit Facility Due 2020
Line of Credit Facility
Commitment fee percentage per annum	0.40%

Derivative Financial Instrume57

Derivative Financial Instruments - Narratives (Details)	Mar. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)	Sep. 30, 2012USD ($)instrument	Jun. 24, 2012USD ($)instrument
Foreign exchange derivative
Derivative
Derivative Asset	$ 675
Derivative Liability	296
Cash Flow Hedge | Designated As Hedging | Foreign currency forward contracts
Derivative
Foreign currency cash flow hedge gain to be reclassified during next 12 months	0
Derivative, notional amount	17,200,000
Derivative Asset	379,000	$ 0
Cash Flow Hedge | Designated As Hedging | Interest rate swap
Derivative
Derivative, notional amount				$ 25,000,000	$ 50,000,000
Number of derivative instruments held | instrument				4	4
Interest rate cash flow hedge gain (loss) to be reclassified during next 12 months	674,000
Derivative Liability	$ 674,000	$ 768,000	$ 1,020,000

Derivative Financial Instrume58

Derivative Financial Instruments - Fair Value of Derivative Instruments (Details) - Cash Flow Hedge - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Other current assets
Derivative Asset
Derivative Asset	$ 379	$ 0
Other liabilities
Derivative Liability
Derivative liability	$ (674)	$ (768)

Derivative Financial Instrume59

Derivative Financial Instruments - Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 29, 2015
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net	$ 156	$ 190
Foreign exchange derivative | Net sales | Designated As Hedging
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net	(7)	0
Foreign exchange derivative | Cost of goods sold | Designated As Hedging
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net	1	0
Foreign exchange derivative | Selling, general and administrative expenses | Designated As Hedging
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net	4	0
Foreign exchange derivative | Other income and expenses | Designated As Hedging
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net	6	0
Interest rate swap | Interest expense | Designated As Hedging
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net	$ 152	$ 190

Accumulated Other Comprehensi60

Accumulated Other Comprehensive (Loss) Income - Summary of Components of Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 29, 2015
Foreign currency transaction loss
Foreign currency transaction loss	$ 231	$ 1,688
AOCI Attributable to Parent, Net of Tax
Total accumulated other comprehensive (loss) income, beginning of period	(99,005)
Total accumulated other comprehensive (loss) income, end of period	(98,212)
Accumulated other comprehensive (loss) income
AOCI Attributable to Parent, Net of Tax
Total accumulated other comprehensive (loss) income, beginning of period	(99,005)	(104,233)
Gain (Loss) recognized in OCI, Net	(258)	(50)
Gain (Loss) reclassified from AOCI to income, Net	1,051	118
Total accumulated other comprehensive (loss) income, end of period	(98,212)	(104,165)
Changes in fair market value of hedges
Changes in AOCI, Gross
Gross, beginning of the period	(768)	(1,020)
Other Comprehensive Income (Loss), before Reclassifications, before Tax	242	(327)
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	231	190
Gross, ending balance	(295)	(1,157)
Changes in AOCI, Income tax (benefit)
Income tax (benefit), beginning of period	289	384
Income tax (benefit), Gain (Loss) recognized in OCI	(91)	123
Income tax (benefit), Gain (Loss) reclassified from AOCI to income	(88)	(72)
Income tax (benefit), ending of period	110	435
AOCI Attributable to Parent, Net of Tax
Total accumulated other comprehensive (loss) income, beginning of period	(479)	(636)
Gain (Loss) recognized in OCI, Net	151	(204)
Gain (Loss) reclassified from AOCI to income, Net	143	118
Total accumulated other comprehensive (loss) income, end of period	(185)	(722)
Changes in unrealized pension cost
Changes in AOCI, Gross
Gross, beginning of the period	(161,719)	(169,291)
Other Comprehensive Income (Loss), before Reclassifications, before Tax	0	1,930
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	1,451	0
Gross, ending balance	(160,268)	(167,361)
Changes in AOCI, Income tax (benefit)
Income tax (benefit), beginning of period	$ 64,361	65,124
Income tax (benefit), Gain (Loss) recognized in OCI		(673)
Income tax (benefit), Gain (Loss) reclassified from AOCI to income	$ (543)	0
Income tax (benefit), ending of period	63,818	64,451
AOCI Attributable to Parent, Net of Tax
Total accumulated other comprehensive (loss) income, beginning of period	(97,358)	(104,167)
Gain (Loss) recognized in OCI, Net	0	1,257
Gain (Loss) reclassified from AOCI to income, Net	908	0
Total accumulated other comprehensive (loss) income, end of period	(96,450)	(102,910)
Cumulative translation adjustment
Changes in AOCI, Gross
Gross, beginning of the period	(1,279)	245
Other Comprehensive Income (Loss), before Reclassifications, before Tax	(406)	(736)
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	0	0
Gross, ending balance	(1,685)	(491)
Changes in AOCI, Income tax (benefit)
Income tax (benefit), beginning of period	111	325
Income tax (benefit), Gain (Loss) recognized in OCI	(3)	(367)
Income tax (benefit), Gain (Loss) reclassified from AOCI to income	0	0
Income tax (benefit), ending of period	108	(42)
AOCI Attributable to Parent, Net of Tax
Total accumulated other comprehensive (loss) income, beginning of period	(1,168)	570
Gain (Loss) recognized in OCI, Net	(409)	(1,103)
Gain (Loss) reclassified from AOCI to income, Net	0	0
Total accumulated other comprehensive (loss) income, end of period	$ (1,577)	$ (533)

Shareholders' Equity - Summary

Shareholders' Equity - Summary of Share Count and Par Value Data Related to Shareholders' Equity (Details) - $ / shares	Mar. 31, 2016	Dec. 31, 2015	Mar. 29, 2015	Dec. 31, 2014
Preferred Stock
Preferred stock, par value per share
Preferred stock, shares authorized	25,000,000	25,000,000
Preferred stock, shares outstanding	0	0
Common Stock
Common stock, par value per share
Common stock, shares authorized	75,000,000	75,000,000
Common stock, shares issued	56,452,665	56,242,499
Common stock, shares outstanding	32,758,643	32,548,477	33,302,247	33,392,060
Treasury stock
Treasury stock, shares held	23,694,022	23,694,022

Shareholders' Equity - Addition

Shareholders' Equity - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 29, 2015
Stockholders' Equity Note [Abstract]
Common stock repurchased, shares	0	164,852
Common stock repurchased, value		$ 2,893
Shares are available for future issuances	17,554

Shareholders' Equity - Summar63

Shareholders' Equity - Summary of Common Shares Outstanding (Details) - shares	3 Months Ended
	Mar. 31, 2016	Mar. 29, 2015
Roll forward of common shares outstanding
Balance at the beginning of the year	32,548,477	33,392,060
Repurchases	0	(164,852)
Restricted share issuances	210,166	75,039
Balance at the end of the period	32,758,643	33,302,247

Equity-Based Compensation - Sum

Equity-Based Compensation - Summary of Equity-Based Compensation Expense (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016USD ($)	Mar. 29, 2015USD ($)	Sep. 27, 2015plan
Share-based Compensation
Number of Equity-Based Compensation Plans | plan			5
Restricted stock units	$ 282	$ 1,520
Service-Based RSUs
Share-based Compensation
Restricted stock units	512	549
Performance-Based RSUs
Share-based Compensation
Restricted stock units	(155)	520
Market-Based RSUs
Share-based Compensation
Restricted stock units	(75)	451
RSUs
Share-based Compensation
Restricted stock units	282	1,520
Income tax benefit	$ 106	$ 571

Equity-Based Compensation - S65

Equity-Based Compensation - Summary of Equity-Based Compensation Expense related to Non-Vested RSUs (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016USD ($)
Service-Based RSUs
Share-based Compensation
Unrecognized compensation cost	$ 2,711
Weighted average period	1 year 7 months 6 days
Performance-Based RSUs
Share-based Compensation
Unrecognized compensation cost	$ 673
Weighted average period	1 year 7 months 6 days
Market-Based RSUs
Share-based Compensation
Unrecognized compensation cost	$ 779
Weighted average period	1 year 6 months
RSUs
Share-based Compensation
Unrecognized compensation cost	$ 4,163
Weighted average period	1 year 7 months 6 days

Equity-Based Compensation - S66

Equity-Based Compensation - Summary of Status of Equity-Based Compensation Plans (Details)	3 Months Ended
	Mar. 31, 2016shares
2014 Plan
Summary of Status of Equity-Based Compensation Plans
Awards originally available	1,500,000
Awards available for grant	515,816
2009 Plan
Summary of Status of Equity-Based Compensation Plans
Awards originally available	3,400,000
Awards available for grant	257,284
2004 Plan
Summary of Status of Equity-Based Compensation Plans
Awards originally available	6,500,000
Awards available for grant	78,947
Directors' Plan
Summary of Status of Equity-Based Compensation Plans
Awards available for grant	25,985
RSUs | 2014 Plan
Summary of Status of Equity-Based Compensation Plans
Shares outstanding	270,545
Vested and released	48,339
RSUs | 2009 Plan
Summary of Status of Equity-Based Compensation Plans
Shares outstanding	171,164
Vested and released	0
RSUs | 2004 Plan
Summary of Status of Equity-Based Compensation Plans
Shares outstanding	78,947
RSUs | Directors' Plan
Summary of Status of Equity-Based Compensation Plans
Shares outstanding	25,985
Performance-Based Stock Options | 2014 Plan
Summary of Status of Equity-Based Compensation Plans
Shares outstanding	330,000
Performance and market-based RSU's | 2014 Plan
Summary of Status of Equity-Based Compensation Plans
Stock options outstanding	335,300
Performance and market-based RSU's | 2009 Plan
Summary of Status of Equity-Based Compensation Plans
Stock options outstanding	86,120

Equity-Based Compensation - Sto

Equity-Based Compensation - Stock Options (Details) - Stock Options	3 Months Ended
	Mar. 31, 2016
Share-based Compensation
Stock options exercisable cumulative annual installments period	10 years
Vesting period	4 years
Stock option contractual term	10 years
Minimum
Share-based Compensation
Stock option exercises, commencement period from date of grant	P1Y

Equity-Based Compensation - Per

Equity-Based Compensation - Performance-Based Stock Options (Details) - 2014 Plan - Performance-Based Stock Options - USD ($)	May. 26, 2015	Jun. 28, 2015
Share-based Compensation
Awards granted (in shares)		330,000
Grant date fair value (in dollars per share)	$ 18.37
Option term (in years)	5 years
Revenue threshold for award	$ 600,000

Equity-Based Compensation - S69

Equity-Based Compensation - Summary of Service-Based Restricted Stock Units (Details) - Service-Based RSUs	3 Months Ended
	Mar. 31, 2016$ / sharesshares
Officers, key employees, and non-employee directors
Share-based Compensation
Number of shares issuable, against each unit of RSU	1
Summary of Service-Based Restricted Stock Units
Outstanding at beginning of year - shares	471,196
Granted - shares	164,922
Released - shares	(97,298)
Forfeited - shares	(18,164)
Outstanding at end of year - shares	520,656
Releasable - shares	277,081
Summary of Service-Based Restricted Stock Units, Weighted Average Grant Date Fair Value
Beginning of year - weighted average fair value | $ / shares	$ 13.27
Granted - weighted average fair value | $ / shares	13.97
Converted - weighted average fair value | $ / shares	14.39
Forfeited - weighted average fair value | $ / shares	17.69
End of year - weighted average fair value | $ / shares	13.13
Releasable - weighted average fair value | $ / shares	$ 11.30
Certain executives and key employees
Share-based Compensation
Vesting period	3 years
Non-employee directors
Share-based Compensation
Vesting period	1 month

Equity-Based Compensation - Dir

Equity-Based Compensation - Directors Plan (Details) - Directors' Plan - RSUs	3 Months Ended
	Mar. 31, 2016$ / sharesshares
Summary of Service-Based Restricted Stock Units
Outstanding at beginning of year - shares | shares	33,974
Granted - shares | shares	0
Released - shares | shares	(7,989)
Forfeited - shares | shares	0
Outstanding at end of year - shares | shares	25,985
Releasable - shares | shares	25,985
Summary of Service-Based Restricted Stock Units, Weighted Average Grant Date Fair Value
Beginning of year - weighted average fair value | $ / shares	$ 11.75
Granted - weighted average fair value | $ / shares	0
Converted - weighted average fair value | $ / shares	11.75
Forfeited - weighted average fair value | $ / shares	0
End of year - weighted average fair value | $ / shares	11.75
Releasable - weighted average fair value | $ / shares	$ 11.75

Equity-Based Compensation - Sch

Equity-Based Compensation - Schedule of Performance-Based RSUs (Details) - Certain executives - Performance-Based RSUs	3 Months Ended
	Mar. 31, 2016shares
February 11, 2013 | Sales growth
Share-based Compensation
Target based Vesting of performance-based restricted stock unit	36,750
Options awarded	58,875
February 11, 2013 | Cash flow
Share-based Compensation
Target based Vesting of performance-based restricted stock unit	31,500
Options awarded	59,819
February 14, 2014 | Sales growth
Share-based Compensation
Target based Vesting of performance-based restricted stock unit	15,071
February 14, 2014 | Cash flow
Share-based Compensation
Target based Vesting of performance-based restricted stock unit	12,918
February 13, 2015 | Sales growth
Share-based Compensation
Target based Vesting of performance-based restricted stock unit	24,150
February 13, 2015 | Cash flow
Share-based Compensation
Target based Vesting of performance-based restricted stock unit	20,700
February 16, 2016 | Sales growth
Share-based Compensation
Target based Vesting of performance-based restricted stock unit	34,528
February 16, 2016 | Cash flow
Share-based Compensation
Target based Vesting of performance-based restricted stock unit	29,595
Minimum
Share-based Compensation
Vesting percent	0.00%
Maximum
Share-based Compensation
Vesting percent	200.00%

Equity-Based Compensation - S72

Equity-Based Compensation - Schedule of Market-Based RSUs (Details) - Market-Based RSUs	3 Months Ended
	Mar. 31, 2016itemshares
Market-Based RSUs
Vesting period	3 years
February 11, 2013 | CEO
Market-Based RSUs
Target based Vesting of market-based restricted stock unit	32,500
Number of enumerated peer group companies | item	20
Options awarded	54,357
February 11, 2013 | Certain executives and key employees
Market-Based RSUs
Target based Vesting of market-based restricted stock unit	36,750
Number of enumerated peer group companies | item	20
Options awarded	61,466
February 14, 2014 | Certain executives and key employees
Market-Based RSUs
Target based Vesting of market-based restricted stock unit	15,071
Number of enumerated peer group companies | item	15
February 13, 2015 | Certain executives and key employees
Market-Based RSUs
Target based Vesting of market-based restricted stock unit	24,150
Number of enumerated peer group companies | item	23
February 16, 2016 | Certain executives and key employees
Market-Based RSUs
Target based Vesting of market-based restricted stock unit	34,528
Number of enumerated peer group companies | item	17
Minimum
Market-Based RSUs
Vesting percent	0.00%
Maximum
Market-Based RSUs
Vesting percent	200.00%

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Financial Liability Measured at Fair Value on a Recurring Basis (Details) - Designated As Hedging - Cash Flow Hedge - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Interest rate swap
Recurring financial liability that was measured at carrying value
Derivative liability	$ (674)	$ (768)	$ (1,020)
Realized gain (loss) on cash flow hedge	233	768
Foreign currency hedges
Recurring financial liability that was measured at carrying value
Derivative Asset	379	0
Realized gain (loss) on cash flow hedge	(2)
Recurring | Interest rate swap
Recurring financial liability that was measured at carrying value
Realized gain (loss) on cash flow hedge	233	(768)
Recurring | Foreign currency hedges
Recurring financial liability that was measured at carrying value
Realized gain (loss) on cash flow hedge	(2)
Recurring | Significant Other Observable Inputs (Level 2) | Interest rate swap
Recurring financial liability that was measured at carrying value
Derivative liability	(674)	(768)
Recurring | Significant Other Observable Inputs (Level 2) | Foreign currency hedges
Recurring financial liability that was measured at carrying value
Derivative Asset	379
Recurring | Carrying Value | Interest rate swap
Recurring financial liability that was measured at carrying value
Derivative liability	(674)	$ (768)
Recurring | Carrying Value | Foreign currency hedges
Recurring financial liability that was measured at carrying value
Derivative Asset	$ 379

Fair Value Measurements - Recon

Fair Value Measurements - Reconciliation of Recurring Financial Liability Related to Interest Rate Swaps (Details) - Designated As Hedging - Cash Flow Hedge - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Interest rate swap
Reconciliation of the recurring financial derivatives
Beginning balance, derivative liability	$ (768)	$ (1,020)
Total gains/(losses) for the period:
Included in earnings	233	768
Included in other comprehensive income	(139)	(516)
Ending balance, derivative liability	(674)	(768)
Foreign currency hedges
Reconciliation of the recurring financial derivatives
Beginning balance, derivative asset	0
Total gains/(losses) for the period:
Included in earnings	(2)
Included in other comprehensive income	381
Ending balance, derivative asset	$ 379	$ 0

Income Taxes - Schedule of Effe

Income Taxes - Schedule of Effective Income Tax Rate (Details)	3 Months Ended
	Mar. 31, 2016	Mar. 29, 2015
Income Tax Disclosure [Abstract]
Effective income tax rate	34.30%	30.20%

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 29, 2015
Reconciliation of effective income taxes rate
Effective income tax rate	34.30%	30.20%
Accrued for interest and penalties related to uncertain income tax	$ 184	$ 0

Business Combinations - Narrati

Business Combinations - Narratives (Details) - USD ($) $ in Thousands	Mar. 11, 2016	Mar. 31, 2016	Mar. 31, 2016	Mar. 29, 2015
Business Acquisition
Cost of goods sold			$ 63,237	$ 66,175
CTG Advanced
Business Acquisition
Net cash paid	$ 72,830
Cash acquired in acquisition	$ 4
Acquisition related cost			$ 804
Cost of goods sold		$ 401

Business Combinations - Acquisi

Business Combinations - Acquisition (Details) - CTG Advanced $ in Thousands	Mar. 11, 2016USD ($)
Business Acquisition
Current assets	$ 4,290
Property, plant and equipment	6,061
Other assets	37
Goodwill and intangible assets	63,110
Fair value of assets acquired	73,498
Less fair value of liabilities acquired	(668)
Net cash paid	$ 72,830

Business Combinations - Income

Business Combinations - Income Statement (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2016	Mar. 29, 2015
Business Acquisition
Net sales		$ 96,705	$ 98,311
Net loss		$ 7,863	$ 6,287
CTG Advanced
Business Acquisition
Net sales	$ 758
Net loss	$ (64)

Business Combinations - Pro For

Business Combinations - Pro Forma (Details) - CTG Advanced - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 29, 2015
Business Acquisition, Pro Forma Information
Net sales	$ 99,017	$ 101,601
Net earnings	$ 7,766	$ 6,718
Basic (usd per share)	$ 0.24	$ 0.20
Diluted (usd per share)	$ 0.24	$ 0.20