10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

(Mark One)

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For The Quarterly Period EndedSeptember 30, 2017

OR

o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the Transition Period from _______________ to _______________

Commission File Number: 1-4639

CTS CORPORATION

(Exact name of registrant as specified in its charter)

Indiana	35-0225010
(State or other jurisdiction of incorporation or organization)	(IRS Employer Identification Number)
2375 Cabot Drive, Lisle, IL	60532
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code:630-577-8800

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ☒ No    o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  ☒     No o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer”, “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer o	Accelerated filer  ☒	Non-accelerated filer  o	Smaller reporting company  o
		(Do not check if smaller reporting company)

Indicate by check markwhether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  o No  ☒ 

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of October 23, 2017: 32,937,050.

CTS CORPORATION AND SUBSIDIARIES

TABLE OF CONTENTS

		Page
PART I. FINANCIAL INFORMATION
Item 1.	Financial Statements
	Condensed Consolidated Statements of Earnings (Unaudited) For the Three and Nine Months Ended September 30, 2017 and September 30, 2016	3
	Condensed Consolidated Statements of Comprehensive Income (Unaudited) For the Three and Nine Months Ended September 30, 2017 and September 30, 2016	4
	Condensed Consolidated Balance Sheets As of September 30, 2017 (Unaudited) and December 31, 2016	5
	Condensed Consolidated Statements of Cash Flows (Unaudited) For the Nine Months Ended September 30, 2017 and September 30, 2016	6
	Notes to Condensed Consolidated Financial Statements ‑ (Unaudited)	7
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	26
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	34
Item 4.	Controls and Procedures	34
PART II. OTHER INFORMATION
Item 1.	Legal Proceedings	34
Item 1A.	Risk Factors	34
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	34
Item 6.	Exhibits	35
SIGNATURES		35

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PART I - FINANCIAL INFORMATION

Item 1.   Financial Statements

CTS CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OFEARNINGS- UNAUDITED

(In thousands of dollars, except per share amounts)

	Three Months Ended						Nine Months Ended
	September 30,			September 30,			September 30,			September 30,
	2017			2016			2017			2016
Net sales	$	106,243		$	99,697		$	312,083		$	295,095
Cost of goods sold	68,705			63,056			204,527			190,528
Gross Margin	37,538			36,641			107,556			104,567
Selling, general and administrative expenses	15,915			16,048			46,970			46,459
Research and development expenses	6,380			6,284			18,432			18,414
Restructuring charges	1,435			1,969			2,942			2,175
Loss (gain) on sale of assets	697			(150		)	698			(11,501		)
Operating earnings	13,111			12,490			38,514			49,020
Other income (expense):
Interest expense	(773		)	(917		)	(2,209		)	(2,746		)
Interest income	363			203			914			1,082
Other income (expense)	1,258			(46		)	2,889			(1,482		)
Total other income (expense)	848			(760		)	1,594			(3,146		)
Earnings before income taxes	13,959			11,730			40,108			45,874
Income tax expense	4,340			8,010			12,039			19,804
Net earnings	$	9,619		$	3,720		$	28,069		$	26,070
Earnings per share:
Basic	$	0.29		$	0.11		$	0.85		$	0.80
Diluted	$	0.29		$	0.11		$	0.84		$	0.79
Basic weighted – average common shares outstanding:	32,935			32,759			32,876			32,716
Effect of dilutive securities	456			495			475			494
Diluted weighted – average common shares outstanding	33,391			33,254			33,351			33,210
Cash dividends declared per share	$	0.04		$	0.04		$	0.12		$	0.12

See notes to unaudited condensed consolidated financial statements.

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CTS CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME‑ UNAUDITED

(In thousands of dollars)

	Three Months Ended						Nine Months Ended
	September 30,			September 30,			September 30,		September 30,
	2017			2016			2017		2016
Net earnings	$	9,619		$	3,720		$	28,069	$	26,070
Other comprehensive income (loss):
Changes in fair market value of derivatives, net of tax	(45		)	(263		)	563		(36		)
Changes in unrealized pension cost, net of tax	936			898			2,694		2,753
Cumulative translation adjustment, net of tax	164			(164		)	452		(890		)
Other comprehensive income	$	1,055		$	471		$	3,709	$	1,827
Comprehensive earnings	$	10,674		$	4,191		$	31,778	$	27,897

 See notes to unaudited condensed consolidated financial statements.

4

CTS CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(In thousands of dollars)

	(Unaudited)
	September 30,			December 31,
	2017			2016
ASSETS
Current Assets
Cash and cash equivalents	$	116,152		$	113,805
Accounts receivable, net	64,861			62,612
Inventories, net	35,308			28,652
Other current assets	13,453			10,638
Total current assets	229,774			215,707
Property, plant and equipment, net	84,291			82,111
Other Assets
Prepaid pension asset	52,100			46,183
Goodwill	68,933			61,744
Other intangible assets, net	68,652			64,370
Deferred income taxes	37,850			45,839
Other	1,683			1,743
Total other assets	229,218			219,879
Total Assets	$	543,283		$	517,697
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current Liabilities
Short-term notes payable	$	—		$	1,006
Accounts payable	45,479			40,046
Accrued payroll and benefits	11,372			11,369
Accrued liabilities	43,991			45,708
Total current liabilities	100,842			98,129
Long-term debt	82,300			89,100
Post-retirement obligations	6,823			7,006
Other long-term obligations	6,709			5,580
Total Liabilities	196,674			199,815
Commitments and Contingencies (Note 9)
Shareholders’ Equity
Common stock	304,726			302,832
Additional contributed capital	39,525			40,521
Retained earnings	435,099			410,979
Accumulated other comprehensive loss	(89,485		)	(93,194		)
Total shareholders’ equity before treasury stock	689,865			661,138
Treasury stock	(343,256		)	(343,256		)
Total shareholders’ equity	346,609			317,882
Total Liabilities and Shareholders’ Equity	$	543,283		$	517,697

See notes to unaudited condensed consolidated financial statements.

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CTS CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS ‑ UNAUDITED

(In thousands of dollars)

	Nine Months Ended
	September 30,			September 30,
	2017			2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$	28,069		$	26,070
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	15,061			14,010
Pension and other post-retirement plan income	(1,369		)	(1,188		)
Stock-based compensation	2,514			1,759
Deferred income taxes	6,777			8,332
Loss (gain) on sales of fixed assets	698			(11,501		)
Loss (gain) on foreign currency hedges, net of cash	126			(15		)
Changes in assets and liabilities:
Accounts receivable	202			(5,971		)
Inventories	(4,335		)	(2,318		)
Other assets	(1,890		)	(489		)
Accounts payable	3,234			2,717
Accrued payroll and benefits	(2,137		)	4,854
Accrued expenses	(915		)	(949		)
Income taxes payable	226			690
Other liabilities	946			(1,543		)
Pension and other post-retirement plans	(240		)	(393		)
Net cash provided by operating activities	46,967			34,065
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(11,987		)	(14,467		)
Proceeds from sale of assets	485			12,248
Payments for acquisitions, net of cash acquired	(19,121		)	(73,063		)
Net cash used in investing activities	(30,623		)	(75,282		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments of long-term debt	(1,173,000		)	(2,048,000		)
Proceeds from borrowings of long-term debt	1,166,200			2,053,300
Payments of short-term notes payable	(1,150		)	—
Dividends paid	(3,942		)	(3,923		)
Taxes paid on behalf of equity award participants	(1,571		)	(1,782		)
Net cash used in financing activities	(13,463		)	(405		)
Effect of exchange rate changes on cash and cash equivalents	(534		)	(873		)
Net increase (decrease) in cash and cash equivalents	2,347			(42,495		)
Cash and cash equivalents at beginning of period	113,805			156,928
Cash and cash equivalents at end of period	$	116,152		$	114,433
Supplemental cash flow information:
Cash paid for interest	$	1,606		$	2,292
Cash paid for income taxes, net	$	4,918		$	10,136

See notes to unaudited condensed consolidated financial statements.

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS - UNAUDITED

(in thousands except for share and per share data)

September 30, 2017

NOTE 1—Basis of Presentation

The accompanying condensed consolidated financial statements have been prepared by CTS Corporation (“CTS” "we", "our", "us" 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, 2016.

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.

Change in Estimate

Beginning in January 2017, we changed the method we use to calculate the service and interest cost components of net periodic benefit cost for our U.S. pension and other post-retirement benefit plans. Previously, we calculated the service and interest cost components using a single weighted-average discount rate derived from the yield curve to measure the benefit obligation at the beginning of the period. In 2017, we began using a full yield curve approach in the estimation of these components of benefit cost by applying the specific spot-rates along the yield curve to the relevant projected cash flows. This approach better aligns each of the projected benefit cash flows to the corresponding spot rates on the yield curve, resulting in a more precise measurement of service and interest costs. The change in method will result in a decrease in the service and interest components of pension costs in 2017. Any decrease to these components as a result of adoption of this approach is equally offset by a decrease in the actuarial losses included in our accumulated other comprehensive loss, with no impact on the measurement of the benefit obligation. This change is accounted for prospectively as a change in accounting estimate.

Subsequent Events

We have evaluated subsequent events and transactions for potential recognition or disclosure in the financial statements through the date the consolidated financial statements are issued.

NOTE 2 – Accounts Receivable

The components of accounts receivable are as follows:

	As of
	September 30,			December 31,
	2017			2016
Accounts receivable, gross	$	65,237		$	62,782
Less: Allowance for doubtful accounts	(376		)	(170		)
Accounts receivable, net	$	64,861		$	62,612

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NOTE 3 – Inventories

Inventories consist of the following:

	As of
	September 30,			December 31,
	2017			2016
Finished goods	$	8,255		$	7,513
Work-in-process	12,789			9,596
Raw materials	21,383			17,680
Less: Inventory reserves	(7,119		)	(6,137		)
Inventories, net	$	35,308		$	28,652

NOTE 4 – Property, Plant and Equipment

Property, plant and equipment is comprised of the following:

	As of
	September 30,			December 31,
	2017			2016
Land	$	1,151		$	2,330
Buildings and improvements	65,830			63,621
Machinery and equipment	220,436			213,198
Less: Accumulated depreciation	(203,126		)	(197,038		)
Property, plant and equipment, net	$	84,291		$	82,111
Depreciation expense for the nine months ended September 30, 2017				$	10,201
Depreciation expense for the nine months ended September 30, 2016				$	9,755

NOTE 5 – Retirement Plans

Pension Plans

Net pension income for our domestic and foreign plans was as follows:

	Three Months Ended						Nine Months Ended
	September 30,			September 30,			September 30,			September 30,
	2017			2016			2017			2016
Net pension income	$	(492	)	$	(440	)	$	(1,416	)	$	(1,234	)

The components of net pension (income) expense for our domestic and foreign plans include the following: 

	DomesticPension Plans						Foreign Pension Plans
	Three Months Ended						Three Months Ended
	September 30,			September 30,			September 30,			September 30,
	2017			2016			2017			2016
Service cost	$	—		$	21		$	12		$	13
Interest cost	2,068			2,756			8			12
Expected return on plan assets (1)	(4,060		)	(4,744		)	(5		)	(33		)
Amortization of loss	1,446			1,499			39			36
(Income) expense, net	$	(546	)	$	(468	)	$	54		$	28

(1) Expected return on plan assets is net of expected investment expenses and certain administrative expenses.

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	DomesticPension Plans						Foreign Pension Plans
	Nine Months Ended						Nine Months Ended
	September 30,			September 30,			September 30,			September 30,
	2017			2016			2017			2016
Service cost	$	—		$	65		$	36		$	38
Interest cost	6,204			8,268			25			34
Expected return on plan assets (1)	(12,181		)	(14,232		)	(15		)	(19		)
Amortization of loss	4,338			4,495			116			105
Other cost due to retirement	61			12			—			—
(Income) expense, net	$	(1,578	)	$	(1,392	)	$	162		$	158

(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 other post-retirement plan includes the following components:

	Three Months Ended						Nine Months Ended
	September 30,			September 30,			September 30,			September 30,
	2017			2016			2017			2016
Service cost	$	—		$	—		$	1		$	2
Interest cost	41			52			121			156
Amortization of gain	(25		)	(37		)	(75		)	(112		)
Post-retirement expense	$	16		$	15		$	47		$	46

NOTE 6 – Other Intangible Assets

Intangible assets consist of the following components:

	As of
	September 30, 2017
	Gross Carrying Amount		Accumulated Amortization			Net Amount
Customer lists/relationships	$	64,323	$	(32,833	)	$	31,490
Patents	10,319		(10,319		)	—
Technology and other intangibles	44,460		(9,498		)	34,962
In process research and development	2,200		—			2,200
Other intangible assets, net	$	121,302	$	(52,650	)	$	68,652
Amortization expense for the three months ended September 30, 2017			$	1,711
Amortization expense for the nine months ended September 30, 2017			$	4,860

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	As of
	December 31, 2016
	Gross Carrying Amount		Accumulated Amortization			Net Amount
Customer lists/relationships	$	63,386	$	(30,318	)	$	33,068
Patents	10,319		(10,319		)	—
Technology and other intangibles	36,715		(7,613		)	29,102
In process research and development	2,200		—			2,200
Other intangible assets, net	$	112,620	$	(48,250	)	$	64,370
Amortization expense for the three months ended September 30, 2016			$	1,638
Amortization expense for the nine months ended September 30, 2016			$	4,254

Amortization expense remaining for other intangible assets is as follows: 

	Amortization expense
2017	$	1,708
2018	6,763
2019	6,754
2020	6,624
2021	6,467
Thereafter	40,336
Total amortization expense	$	68,652

NOTE 7 – Costs Associated with Exit and Restructuring Activities

Costs associated with exit and restructuring activities are recorded in the Condensed Consolidated Statement of Earnings as a separate component of Operating earnings. 

Total restructuring charges, all related to the June 2016 Plan described below, were as follows:

	Three Months Ended
	September 30, 2017		September 30, 2016
Restructuring charges	$	1,435	$	1,969

	Nine Months Ended
	September 30, 2017		September 30, 2016
Restructuring charges	$	2,942	$	2,175

In June 2016, we announced plans to restructure operations by phasing out production at our Elkhart facility by mid-2018 and transitioning it into a research and development center supporting our global operations ("June 2016 Plan"). Additional organizational changes will also occur in various other locations. During the third quarter of 2017, we revised the June 2016 Plan. The amendment added an additional $1,100 in planned costs related to the relocation of our corporate headquarters in Lisle, IL and our plant in Bolingbrook, IL, both of which will be consolidated into a single facility. The amendment does not impact any additional employees. The total cost of the plan is expected to be approximately $13,400 and will impact approximately 230 employees. The total restructuring liability related to severance and other one-time benefit arrangements under the June 2016 Plan was $1,546 at September 30, 2017, and $1,739 at December 31, 2016. Additional costs related to line movements, equipment charges, and other costs will be expensed as incurred.

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The following table displays the planned restructuring charges associated with the June 2016 Plan as well as a summary of the actual costs incurred through September 30, 2017:

			Actual costs
	Planned		incurred through
June 2016 Plan	Costs		September 30, 2017
Workforce reduction	$	3,075	$	2,895
Building and equipment relocation	9,025		2,584
Other charges	1,300		511
Total restructuring charges	$	13,400	$	5,990

In April 2014, we announced plans to restructure our operations and consolidate our Canadian operations into other existing facilities as part of our overall plan to simplify its business model and rationalize our global footprint (“April 2014 Plan”).  These restructuring actions, which were completed during 2015, impacted approximately 120 positions. The remaining restructuring liability related to the April 2014 Plan was $461 at September 30, 2017, and $423 at December 31, 2016.

The following table displays the restructuring liability activity for all plans for the nine months ended September 30, 2017: 

Combined Plans
Restructuring liability at January 1, 2017	$	2,162
Restructuring charges	2,942
Cost paid	(3,162		)
Other activity (1)	65
Restructuring liability at September 30, 2017	$	2,007

(1) Other activity includes the effects of currency translation and other charges that do not flow through restructuring expense.

NOTE 8 – Accrued Liabilities

The components of accrued liabilities are as follows: 

	As of
	September 30,		December 31,
	2017		2016
Accrued product related costs	$	4,681	$	5,556
Accrued income taxes	10,157		9,826
Accrued property and other taxes	2,435		1,917
Accrued professional fees	1,687		1,633
Dividends payable	1,317		1,309
Remediation reserves	17,633		18,176
Other accrued liabilities	6,081		7,291
Total accrued liabilities	$	43,991	$	45,708

NOTE 9 – Contingencies

Certain processes in the manufacture of our current and past products create by-products classified as hazardous waste. We have been notified by the U.S. Environmental Protection Agency, state environmental agencies, and in some cases, groups of potentially responsible parties, that we may be potentially liable for environmental contamination at several sites currently and formerly owned or operated by us. Some sites, such as Asheville, North Carolina and Mountain View, California, are designated National Priorities List sites under the U.S. Environmental Protection Agency’s Superfund program. We reserve for probable remediation activities and for claims and proceedings against us with respect to other environmental matters. We record reserves on an undiscounted basis. In the opinion of management, based upon presently available information relating to 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

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we have not reserved because the amount of the loss cannot be reasonably estimated. Due to the inherent nature of environmental obligations, we cannot provide assurance that our ultimate environmental liability 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.

A roll forward of remediation reserves included in accrued liabilities on the balance sheet is comprised of the following:

	As of
	September 30, 2017			December 31, 2016
Balance at beginning of period	$	18,176		$	20,603
Remediation expense	299			556
Net remediation reimbursements (payments)	(842		)	(2,983		)
Balance at end of the period	$	17,633		$	18,176

During the second quarter of 2017 we received a reimbursement of remediation costs under a cost-allocation agreement that we entered into with an unrelated party in the amount of $811. This reimbursement has been reflected in the net remediation reimbursements above.

Unrelated to the environmental claims described above, certain other claims are pending against us with respect to matters arising in the ordinary conduct of our 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 us, we believe 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.

NOTE 10 - Debt

Long-term debt was comprised of the following:

	As of
	September 30,			December 31,
	2017			2016
Revolving credit facility due in 2020	$	82,300		$	89,100
Weighted average interest rate	2.3		%	1.9		%
Amount available	$	215,635		$	208,735
Total credit facility	$	300,000		$	300,000
Standby letters of credit	$	2,065		$	2,165
Commitment fee percentage per annum	0.25		%	0.25		%

On August 10, 2015, we entered into a new five-year credit agreement (“Revolving Credit Facility”) with a group of banks in order to support our financing needs.  The Revolving Credit Facility originally provided for a credit line of $200,000. On May 23, 2016, we requested and received a $100,000 increase in the aggregate revolving credit commitments under the existing credit agreement, which increased the credit line from $200,000 to $300,000.  

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 our option, at the base rate plus the applicable margin for base rate loans or LIBOR plus the applicable margin for LIBOR loans.  We also pay 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 our total leverage ratio. 

The Revolving Credit Facility requires, among other things, that we comply with a maximum total leverage ratio and a minimum fixed charge coverage ratio.  Failure to comply with these covenants could reduce the borrowing availability under the Revolving Credit Facility.  We were in compliance with all debt covenants at September 30, 2017.  The Revolving Credit Facility requires that we deliver quarterly financial statements, annual financial statements, auditor 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 our 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 our subsidiaries and affiliates; and make stock repurchases and dividend payments.  Interest rates on the

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Revolving Credit Facility fluctuate based upon the London Interbank Offered Rate and the Company’s quarterly total leverage ratio.  

We have debt issuance costs related to our long-term debt that is being amortized using the straight-line method over the life of the debt. These costs are included in interest expense in our Condensed Consolidated Statement of Earnings. Amortization expense was approximately $46 for both the three months ended September 30, 2017 and September 30, 2016, respectively, and approximately $139 and $116 for the nine months ended September 30, 2017 and September 30, 2016, respectively. 

Note 11 - 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. At least quarterly, 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 (loss) 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 Condensed 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 (loss) 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 September 30, 2017, we had a net unrealized gain of $350 in accumulated other comprehensive income, all of which is expected to be reclassified to income within the next 12 months. At September 30, 2016 we had a net unrealized loss of $219 in accumulated other comprehensive income (loss). The notional amount of foreign currency forward contracts outstanding was $29.5 million at September 30, 2017.

Interest Rate Swaps

We use 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, we 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. In the third quarter of 2016, we entered into three additional forward-starting interest rate swap agreements to fix interest rates on $50,000 of long-term debt for the periods August 2017 to August 2020. 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 $156. 

The location and fair values of derivative instruments designated as hedging instruments in the Condensed Consolidated Balance Sheets as of September 30, 2017, are shown in the following table:

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	As of
	September 30,		December 31,
	2017		2016
Foreign currency hedges reported in Accrued liabilities	$	—	$	601
Foreign currency hedges reported in Other current assets	$	260	$	—
Interest rate swaps reported in Other current assets	$	156	$	2
Interest rate swaps reported in Other assets	$	494	$	751

The Company has elected to net its foreign currency derivative assets and liabilities in the balance sheet in accordance with ASC 210-20 (Balance Sheet, Offsetting). On a gross basis, there were foreign currency derivative assets of $616 and foreign currency derivative liabilities of $356.

The effect of derivative instruments on the Condensed Consolidated Statements of Earnings is as follows:

	Three Months Ended						Nine Months Ended
	September 30,			September 30,			September 30,			September 30,
	2017			2016			2017			2016
Foreign Exchange Contracts:
Loss recognized in Net Sales	$	(194	)	$	(35	)	$	(253	)	$	(125	)
Gain recognized in Cost of Goods Sold	268			51			182			139
Gain recognized in Selling, General and Administrative expense	21			—			31			10
Loss recognized in Other (expenses) income	(2		)	(5		)	(11		)	(9		)
Interest Rate Swaps:
Benefit recorded in Interest Expense	$	12		$	158		$	12		$	471
Total gain / (loss)	$	105		$	169		$	(39	)	$	486

NOTE 12 – Accumulated Other Comprehensive (Loss) Income

Shareholders’ equity includes certain items classified as accumulated other comprehensive (loss) income (“AOCI”) in the Condensed Consolidated Balance Sheets, including:

Unrealized gains (losses) on hedges relate to interest rate swaps to convert the revolving credit facility'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 we have deferred income statement recognition of gains and losses until the hedged transactions occur, 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 income / (expense).  Further information related to our pension obligations is included in Note 5 – Retirement Plans.

Cumulative translation adjustments relate to our non-U.S. subsidiary companies that have designated a functional currency other than the U.S. dollar. We are 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 gains for the three and nine months ended September 30, 2017 were $960 and $2,517, respectively, and transaction losses for the three and nine months ended September 30, 2016 were $165 and $1,656, respectively, which have been included in other income (expense) in the Condensed Consolidated Statement of Earnings.

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The components of accumulated other comprehensive (loss) income for the three months ended September 30, 2017, are as follows:

							Gain (Loss)
	As of			Gain (Loss)			Reclassified			As of
	June 30,			Recognized			from AOCI			September 30,
	2017			in OCI			to Income			2017
Changes in fair market value of hedges:
Gross	$	1,070		$	37		$	(108	)	$	999
Income tax (benefit) expense	(388		)	(14		)	40			(362		)
Net	682			23			(68		)	637
Changes in unrealized pension cost:
Gross	(148,856		)	—			1,458			(147,398		)
Income tax expense (benefit)	59,668			—			(522		)	59,146
Net	(89,188		)	—			936			(88,252		)
Cumulative translation adjustment:
Gross	(2,132		)	161			—			(1,971		)
Income tax expense	98			3			—			101
Net	(2,034		)	164			—			(1,870		)
Total accumulated other comprehensive (loss) income	$	(90,540	)	$	187		$	868		$	(89,485	)

The components of accumulated other comprehensive (loss) income for the three months ended September 30, 2016, are as follows:

							Gain (Loss)
	As of			Gain (Loss)			Reclassified			As of
	June 30,			Recognized			from AOCI			September 30,
	2016			in OCI			to Income			2016
Changes in fair market value of hedges:
Gross	$	(403	)	$	(643	)	$	221		$	(825	)
Income tax expense (benefit)	151			242			(83		)	310
Net	(252		)	(401		)	138			(515		)
Changes in unrealized pension cost:
Gross	(158,763		)	—			1,437			(157,326		)
Income tax expense (benefit)	63,260			—			(539		)	62,721
Net	(95,503		)	—			898			(94,605		)
Cumulative translation adjustment:
Gross	(1,995		)	(161		)	—			(2,156		)
Income tax expense (benefit)	101			(3		)	—			98
Net	(1,894		)	(164		)	—			(2,058		)
Total accumulated other comprehensive (loss) income	$	(97,649	)	$	(565	)	$	1,036		$	(97,178	)

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The components of accumulated other comprehensive (loss) income for the nine months ended September 30, 2017, are as follows:

							Gain (Loss)
	As of			Gain (Loss)			reclassified			As of
	December 31,			Recognized			from AOCI			September 30,
	2016			in OCI			to income			2017
Changes in fair market value of hedges:
Gross	$	116		$	856		$	27		$	999
Income tax benefit	(42		)	(311		)	(9		)	(362		)
Net	74			545			18			637
Changes in unrealized pension cost:
Gross	(151,618		)	—			4,220			(147,398		)
Income tax expense (benefit)	60,672			—			(1,526		)	59,146
Net	(90,946		)	—			2,694			(88,252		)
Cumulative translation adjustment:
Gross	(2,414		)	443			—			(1,971		)
Income tax expense	92			9			—			101
Net	(2,322		)	452			—			(1,870		)
Total accumulated other comprehensive (loss) income	$	(93,194	)	$	997		$	2,712		$	(89,485	)

The components of accumulated other comprehensive (loss) income for the nine months ended September 30, 2016, are as follows:

							Gain (Loss)
	As of			Gain (Loss)			reclassified			As of
	December 31,			Recognized			from AOCI			September 30,
	2015			in OCI			to income			2016
Changes in fair market value of hedges:
Gross	$	(768	)	$	(742	)	$	685		$	(825	)
Income tax expense (benefit)	289			278			(257		)	310
Net	(479		)	(464		)	428			(515		)
Changes in unrealized pension cost:
Gross	(161,719		)	—			4,393			(157,326		)
Income tax expense (benefit)	64,361			—			(1,640		)	62,721
Net	(97,358		)	—			2,753			(94,605		)
Cumulative translation adjustment:
Gross	(1,279		)	(877		)	—			(2,156		)
Income tax expense (benefit)	111			(13		)	—			98
Net	(1,168		)	(890		)	—			(2,058		)
Total accumulated other comprehensive (loss) income	$	(99,005	)	$	(1,354	)	$	3,181		$	(97,178	)

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NOTE 13 – Shareholders’ Equity

Share count and par value data related to shareholders’ equity are as follows:

	As of
	September 30,	December 31,
	2017	2016
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	56,631,072	56,456,516
Shares outstanding	32,937,050	32,762,494
Treasury stock
Shares held	23,694,022	23,694,022

No common stock repurchases were made during the nine months ended September 30, 2017. Through September 30, 2017, we had purchased an aggregate of $7,446 under a previously board-authorized share repurchase plan allowing for up to $25,000 in stock repurchases. Approximately $17,554 is available for future purchases.

A roll-forward of common shares outstanding is as follows:

	Nine Months Ended
	September 30,	September 30,
	2017	2016
Balance at the beginning of the year	32,762,494	32,548,477
Repurchases	—	—
Shares issued upon exercise of stock options	—	—
Restricted share issuances	174,556	211,032
Balance at the end of the period	32,937,050	32,759,509

Certain potentially dilutive restricted stock units are excluded from diluted earning per share because they are anti-dilutive. The number of awards that were anti-dilutive at September 30, 2017 and September 30, 2016 were 10,094 and 2,019, respectively.

NOTE 14 - Stock-Based Compensation

At September 30, 2017, we had four active stock-based compensation plans: 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.

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The following table summarizes the compensation expense included in selling, general and administrative expenses in the Condensed Consolidated Statements of Earnings related to stock-based compensation plans:

	Three Months Ended				Nine Months Ended
	September 30,		September 30,		September 30,		September 30,
	2017		2016		2017		2016
Service-Based RSUs	$	415	$	523	$	1,430	$	1,471
Performance-Based RSUs	360		235		1,040		267
Cash-settled RSUs	52		34		44		21
Total	$	827	$	792	$	2,514	$	1,759
Income tax benefit	311		298		945		661
Net	$	516	$	494	$	1,569	$	1,098

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
	September 30, 2017		period
Service-Based RSUs	$	865
Performance-Based RSUs	2,552
Total	$	3,417	1.68

We recognize 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 status of these plans as of September 30, 2017:

	2014 Plan	2009 Plan	2004 Plan	Directors' Plan
Awards originally available	1,500,000	3,400,000	6,500,000	N/A
Performance-based options outstanding	295,000	—	—	—
Maximum potential RSU and cash settled awards outstanding	705,925	122,600	57,391	9,620
Maximum potential awards outstanding	1,000,925	122,600	57,391	9,620
RSUs and cash settled awards vested and released	173,554	—	—	—
Awards available for grant	325,521	—	—	—

Stock Options

We have no stock options exercisable or outstanding as of September 30, 2017, other than the performance-based stock options described below.

Performance-Based Stock Options

During 2015 and 2016, the Compensation Committee of the Board of Directors of the Company (the “Committee”) granted a total of 350,000 performance-based stock option awards (“Performance-Based Option Awards”) for certain employees under the 2014 Plan, of which 295,000 remain outstanding after considering forfeitures.  The Performance-Based Option Awards have an exercise price of $18.37, a term of five years, and generally will become exercisable (provided the optionee remains employed by the Company or an affiliate) upon our attainment of at least $600,000 in revenues during any of our four-fiscal-quarter trailing periods (as determined by the Committee) during the term.  We have not recognized any expense on these Performance-Based Option Awards for the nine-month periods ended September 30, 2017 and 2016, since the revenue target was not deemed likely to be attained based on our current forecast.

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Service-Based Restricted Stock Units

The following table summarizes the service-based RSU activity as of and for the nine months ended September 30, 2017: 

	Units		Weighted Average Grant Date Fair Value
Outstanding at January 1, 2017	554,478		$	13.37
Granted	34,040		22.98
Vested and released	(199,251	)	13.79
Forfeited	(9,924	)	16.69
Outstanding at September 30, 2017	379,343		$	13.92
Releasable at September 30, 2017	226,811		$	11.38

Performance and Market-Based Restricted Stock Units

The following table summarizes the performance and market-based RSU activity as of and for the nine months ended September 30, 2017:

	Units		Weighted Average Grant Date Fair Value
Outstanding at January 1, 2017	201,900		$	16.48
Granted	123,919		23.83
Attained by performance	15,285		21.66
Released	(43,275	)	21.66
Forfeited	(26,524	)	22.56
Outstanding at September 30, 2017	271,305		$	18.77
Releasable at September 30, 2017	—		$	—

The following table summarizes each grant of performance awards outstanding at September 30, 2017.

Description	Grant Date	Vesting Year	Vesting Dependency	Target Units Outstanding	Maximum Number of Units to be Granted
2015 - 2017 Performance RSUs	February 5, 2015	2017	35% RTSR, 35% sales growth, 30% cash flow	62,000	124,000
2016 - 2018 Performance RSUs	February 16, 2016	2018	35% RTSR, 35% sales growth, 30% cash flow	92,840	185,680
2017 - 2019 Performance RSUs	February 9, 2017	2019	35% RTSR, 35% sales growth, 30% cash flow	71,796	143,592
2017 - 2019 Performance RSUs	February 9, 2017	2018 - 2020	Operating Income	40,669	40,669
Single Crystal Performance RSUs	March 31, 2016	2018	Various	4,000	8,000

Cash-Settled Restricted Stock Units

Cash-Settled RSUs entitle the holder to receive the cash equivalent of one share of common stock for each unit when the unit vests. These RSUs are issued to key employees residing in foreign locations as direct compensation. Generally, these RSUs vest over a three-year period. Cash-Settled RSUs are classified as liabilities and are remeasured at each reporting date until settled. At September 30, 2017 and September 30, 2016 we had 14,252 and 12,074 cash-settled RSUs outstanding, respectively. At September 30, 2017 and September 30, 2016, liabilities of $214 and $115, respectively were included in Accrued liabilities on our Condensed Consolidated Balance Sheets.

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NOTE 15 — Fair Value Measurements

We use interest rate swaps to convert our Revolving Credit Facility’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 our financial assets that were measured at fair value on a recurring basis at September 30, 2017:

			Quoted
			Prices
	Asset		in Active		Significant
	Carrying		Markets for		Other		Significant
	Value at		Identical		Observable		Unobservable
	September 30,		Instruments		Inputs		Inputs
	2017		(Level 1)		(Level 2)		(Level 3)
Interest rate swaps	$	650	$	—	$	650	$	—
Foreign currency hedges	$	260	$	—	$	260	$	—

The table below summarizes the financial assets (liabilities) that were measured at fair value on a recurring basis as of December 31, 2016:

				Quoted
	Asset			Prices
	(Liability)			in Active		Significant
	Carrying			Markets for		Other			Significant
	Value at			Identical		Observable			Unobservable
	December 31,			Instruments		Inputs			Inputs
	2016			(Level 1)		(Level 2)			(Level 3)
Interest rate swaps	$	753		$	—	$	753		$	—
Foreign currency hedges	$	(601	)	$	—	$	(601	)	$	—

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, 2016	$	(768	)	$	—
Settled in cash	—			54
Included in earnings	928			(18		)
Included in other comprehensive earnings	593			(637		)
Balance at December 31, 2016	$	753		$	(601	)
Settled in cash	(6		)	(75		)
Included in earnings	(6		)	(51		)
Included in other comprehensive earnings	(91		)	987
Balance at September 30, 2017	$	650		$	260

Our long-term debt consists of the Revolving Credit Facility which is recorded at its carrying value. There is a readily determinable market for our 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.

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NOTE 16 — Income Taxes

The effective tax rates for the three and nine-month periods ended September 30, 2017 and 2016 were:

	Three Months Ended				Nine Months Ended
	September 30,		September 30,		September 30,		September 30,
	2017		2016		2017		2016
Effective tax rate	31.1	%	68.3	%	30.0	%	43.2	%

Our effective income tax rate was 31.1% and 68.3% in the third quarter of 2017 and 2016, respectively, and 30.0% and 43.2% for the nine months ended September 30, 2017 and 2016, respectively. The tax rates for the three and nine months ended September 30, 2017 were lower than the U.S. statutory tax rate due primarily to tax benefits recorded upon vesting of restricted stock units, a release of valuation allowances recorded against realizable foreign NOLs, and favorable tax rates on foreign earnings, offset by the impact of state taxes, tax expense for withholding taxes on the anticipated distribution of earnings in China, and other various permanent items.

Our continuing practice is to recognize interest and/or penalties related to income tax matters as income tax expense. For the three months ended September 30, 2017, and 2016, we recorded $181 and $181, respectively, and for the nine months ended September 30, 2017 and 2016, we recorded $533 and $552, respectively, of interest or penalties in income tax expense.  

Note 17 - Business Combinations

On May 15, 2017, we acquired 100% of the equity interest in Noliac A/S, a privately-held company, for $19.3 million in cash. Noliac A/S is a designer and manufacturer of tape cast and bulk piezoelectric material as well as transducers for use in the telecommunications, industrial, medical, and defense industries. This acquisition will enable us to increase our product base within our ceramics product lines as well as expand our presence in the European market.

The purchase price of $19,121, net of cash acquired of $199, has been preliminarily allocated based on our estimates and assumptions of the approximate fair values of assets acquired and liabilities assumed on the acquisition date. We are still in the process of completing our valuation, and accordingly our estimates and assumptions are subject to change within the measurement period.

	Preliminary Fair Values at May 15, 2017
Current assets	$	2,836
Property, plant and equipment	980
Other assets	108
Goodwill	7,189
Intangible assets	9,142
Fair value of assets acquired	20,255
Less fair value of liabilities acquired	(1,134		)
Net cash paid	$	19,121

On March 11, 2016, we acquired all of the outstanding membership interests in CTG Advanced Materials, LLC (“CTG-AM”), a privately-held company, for $73 million in cash plus 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, we gain technology and proprietary manufacturing methods that expand our offering of piezoelectric materials. This allows us to become the leading large-scale commercial producer of both single crystal materials and traditional piezoelectric ceramics.

The purchase price of $73,063, net of cash acquired of $4, has been allocated to the fair values of assets and liabilities acquired as of March 11, 2016.

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The following table summarizes the fair values of the assets acquired and the liabilities assumed at the date of acquisition:

	Fair Values at March 11, 2016
Current assets	$	4,215
Property, plant and equipment	6,173
Other assets	37
Goodwill	27,879
Intangible assets	35,427
Fair value of assets acquired	73,731
Less fair value of liabilities acquired	(668		)
Net cash paid	$	73,063

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.

The following table summarizes the carrying amounts and weighted average lives of the acquired intangible assets:

Intangible Asset Type	Fair Value		Weighted Average Amortization Period (in years)
Developed Technology	$	23,730	15.0
Customer Relationships and Contracts	11,502		14.6
Other	195		0.8
Total	$	35,427	14.8

We incurred $804 in transaction related costs during the year ended December 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 through the current quarter in the prior year that have been included in the Condensed Consolidated Statement of Earnings are as follows:

	For the period March 11, 2016 through September 30, 2016
Net sales	$	7,096
Net earnings	$	256

NOTE 18 — Recent Accounting Pronouncements

ASU 2017-12 "Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities"

In August 2017, the Financial Accounting Standards Board ("FASB") issued Accountings Standards Update ("ASU") No 2017-12 "Derivatives and Hedging (Topic 815): Target Improvements to Accounting for Hedging Activities". This ASU is meant to better align an entity's risk management activities and financial reporting for hedging relationships through changes to both the designation and measurement guidance for qualifying hedging relationships and presentation of the effects of the hedging instrument and the hedged item in the financial statements. This ASU is effective for annual periods beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted in any interim period after issuance. Any changes should be applied to all hedging relationships that exist at the date of adoption by applying a cumulative-effect adjustment related to eliminating the separate measurement of ineffectiveness to accumulated other comprehensive income with a corresponding adjustment to the

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opening balance of retained earnings as of the beginning of the fiscal year of adoption. Presentation and disclosure guidance is to be applied prospectively. We are still evaluating the impact this ASU may have on our financial statements.

ASU 2017-07 "Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Post-retirement Benefit Cost"

In March 2017, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2017-07 "Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and net Periodic Post-retirement Benefit Cost". This ASU is meant to improve the presentation of net periodic pension and net periodic post-retirement benefits costs. Currently, pension and post-retirement benefit costs are comprised of several components reflecting the different aspects of an employer's financial arrangements and cost of providing benefits to employees. These components are aggregated for reporting, but prior guidance does not prescribe where the net cost should be presented in the income statement or capitalized in assets. This ASU requires disaggregation of the service cost component from other components of net benefit cost and provides explicit guidance on how to present the service cost and other components in the income statement, allowing only the service cost component of net benefit costs to be eligible for capitalization. This ASU is effective for annual periods beginning after December 15, 2017, including interim periods within those periods. Early adoption is permitted as of the beginning of an annual period for which financial statements have not been issued or made available for issuance. These amendments should be applied retrospectively for the presentation of the service cost and other components of net periodic pension and net post-retirement benefit cost in the income statement and prospectively for the capitalization of the service cost and net periodic pension cost and periodic post-retirement benefit in assets. This ASU is not expected to have a material impact on our financial statements because the service cost component of our pension cost is expected to be immaterial to our financial results on a prospective basis.

ASU 2017-04 "Intangibles -Goodwill and Other (Topic 305): Simplifying the Test for Goodwill Impairment"

In January 2017, the FASB issued ASU No. 2017-04 "Intangibles - Goodwill and Other (Topic 305): Simplifying the Test for Goodwill Impairment". This ASU is meant to simplify the subsequent measurement of goodwill for impairment by eliminating the current Step 2 analysis in computing the implied fair value of goodwill. In addition, this ASU requires an entity to consider income tax effects on any tax deductible goodwill on the carrying amount of the reporting unit when measuring an impairment loss, if applicable. Under this ASU, impairment is determined by comparing the reporting unit's fair value to the carrying value. This amendment is effective for fiscal years beginning after December 15, 2019, with early adoption permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. We do not expect this guidance to have an impact on our financial statements.

ASU 2017-01 "Business Combinations (Topic 805): Clarifying the Definition of Business"

In January 2017, the FASB issued ASU No. 2017-01 "Business Combinations (Topic 805): Clarifying the Definition of Business". This ASU is meant to clarify the definition of a business to add guidance when determining when an acquisition or disposal should be accounted for as a sale of assets or business. This ASU provides a more robust framework to use in determining when a set of assets or activities should be classified as a business, providing more consistency in accounting for business or asset acquisitions. This ASU is effective for public companies, for fiscal years beginning after December 15, 2017, including interim periods within those periods. The ASU will be applied prospectively.

ASU 2016-16 "Income Taxes (Topic 740) Intra-Entity Transfers of Assets Other Than Inventory"

In October 2016, the FASB issued ASU No. 2016-16, "Intra-Entity Transfers of Assets Other Than Inventory". This ASU is meant to improve the accounting for the income tax effect of intra-entity transfers of assets other than inventory. Currently, US GAAP prohibits the recognition of current and deferred income taxes for intra-entity asset transfers until the asset is sold to a third party. This ASU will now require companies to recognize the income tax effect of an intra-entity asset transfer (other than inventory) when the transaction occurs. This ASU is effective for public companies, for fiscal years beginning after December 15, 2019 and interim periods within those annual reporting periods. Early adoption is permitted and is to be applied on a modified retrospective basis through a cumulative-effect adjustment to retained earnings as of the beginning of the period of adoption. This guidance is not expected to have a material impact on our consolidated financial statements.

ASU 2016-15 "Statement of Cash Flows (Topic 230) Classification of Certain Cash Receipts and Cash Payments"

In August 2016, the FASB issued ASU No. 2016-15, "Classification of Certain Cash Receipts and Cash Payments". This ASU reduces the diversity in reporting of eight specific cash flow issues due to accounting guidance that is unclear or does not exist. The eight issues relate to certain debt activities, business combination activities, insurance settlements and other various activities. This guidance is effective for fiscal years beginning after December 15, 2017 and interim periods within those fiscal years. Early adoption is permitted and is to be applied retrospectively using a transition method for each period presented. An entity that elects

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early adoption of the amendment under this ASU must adopt all aspects of the amendment in the same period. This guidance is not expected to have a material impact on our consolidated financial statements.

ASU 2016-02 "Leases (Topic 842)"

In February 2016, the FASB issued ASU 2016-02, "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 on 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 months, 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 expected 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. 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. We have not yet commenced the process for evaluating the impact of this ASU on our financial statements, and therefore it's impact has not yet been determined.

ASU 2014-09, "Revenue from Contracts with Customers (Topic 606)"

In May 2014, the FASB issued ASU 2014-09, "Revenue from Contracts with Customers (Topic 606)".The guidance in this ASU affects any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of nonfinancial assets unless those contracts are within the scope of other standards (for example, insurance contracts or lease contracts). The new revenue recognition guidance more closely aligns U.S. GAAP with International Financial Reporting Standards ("IFRS"). The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services.

To achieve that core principle, an entity should apply the following steps:

Step 1: Identify the contract(s) with a customer.

Step 2: Identify the performance obligations in the contract.

Step 3: Determine the transaction price.

Step 4: Allocate the transaction price to the performance obligations in the contract.

Step 5: Recognize revenue when (or as) the entity satisfies a performance obligation.

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 ASU 2014-9 to annual periods beginning after December 15, 2017 and interim periods within those fiscal years. Early adoption is permitted for annual periods beginning after December 15, 2016 and interim periods within those fiscal years. In addition, four other ASUs have been issued amending and clarifying ASU 2014-09 and must be adopted concurrently.

• ASU 2016-08 "Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net)

• ASU 2016-10 "Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing"

• ASU 2016-12 "Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients"

• ASU 2016-20 "Revenue from Contracts with Customers (Topic 606): Technical Corrections and Improvements"

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We have completed our review of customer contracts and agreements for revenue recognized through the second quarter 2017.  We currently have not identified additional performance obligations within our contracts or expect significant changes in revenue from the measurement of variable consideration upon adoption of the new standard.  We expect to adopt the provisions of this standard using the modified retrospective approach, which requires a cumulative effect adjustment to the opening balance of retained earnings on the date of adoption.  We are currently completing the quantitative analysis as of the end of the second quarter to determine the financial impact this new standard will have on our operations.  Based on our preliminary testing, we expect that the standard will not have a material impact on our financial statements. This standard becomes effective on January 1, 2018.

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Item 2. Management’s Discussion and Analysis of Financial Condition andResults of Operations (“MD&A”)

(in thousands, except percentages and per share amounts)

The following discussion should be read in conjunction with our unaudited Condensed Consolidated Financial Statements and notes included under Item 1, as well as our Consolidated Financial Statements and notes and related Management’s Discussion and Analysis of Financial Condition and Results of Operations included in our Annual Report on Form 10-K for the year ended December 31, 2016.

Overview

CTS Corporation (“CTS”, “we”, “our” or “us”) is a leading designer and manufacturer of products that Sense, Connect and Move. We manufacture sensors, actuators and electronic components in North America, Europe, and Asia, and supply these products to OEMs in the aerospace, communications, defense, industrial, information technology, medical and transportation markets.

Results of Operations: Third Quarter 2017 versus Third Quarter 2016

The following table highlights changes in significant components of the Unaudited Condensed Consolidated Statements of Earnings for the quarters ended September 30, 2017, and September 30, 2016:

	Three Months Ended							Percent of	Percent of
	September 30,		September 30,			Percent		Net Sales –	Net Sales –
	2017		2016			Change		2017	2016
Net sales	$	106,243	$	99,697		6.6		100.0	100.0
Cost of goods sold	68,705		63,056			9.0		64.7	63.2
Gross margin	37,538		36,641			2.4		35.3	36.8
Selling, general and administrative expenses	15,915		16,048			(0.8	)	15.0	16.1
Research and development expenses	6,380		6,284			1.5		6.0	6.3
Restructuring charges	1,435		1,969			(27.1	)	1.4	2.0
Loss (gain) on sale of assets	697		(150		)	(564.7	)	0.7	(0.1	)
Total operating expenses	24,427		24,151			1.1		23.0	24.3
Operating earnings	13,111		12,490			5.0		12.3	12.5
Total other income (expense)	848		(760		)	(211.6	)	0.8	(0.8	)
Earnings before income taxes	13,959		11,730			19.0		13.1	11.7
Income tax expense	4,340		8,010			(45.8	)	4.1	8.0
Net earnings	$	9,619	$	3,720		158.6		9.0	3.7
Earnings per share:
Diluted net earnings per share	$	0.29	$	0.11

Sales were $106,243 in the third quarter of 2017, an increase of $6,546 or 6.6% from the third quarter of 2016. Sales to automotive markets increased $3,789 or 5.8%.  Other sales increased $2,757 or 7.9%. The Noliac acquisition added $2,554 in sales for the quarter.  Changes in foreign exchange rates increased sales by $247 year-over-year due to the U.S. Dollar depreciating compared to the Chinese Renminbi and Euro and relating mostly to sales of automotive products.

Gross margin as a percent of sales was 35.3% in the third quarter of 2017 compared to 36.8% in the third quarter of 2016. The decrease in gross margin was driven mainly by product mix changes as well as unfavorable foreign exchange impact in 2017 versus favorable foreign exchange impact in 2016.

Selling, general and administrative ("SG&A") expenses were $15,915 or 15.0% of sales in the third quarter of 2017 versus $16,048 or 16.1% of sales in the third quarter of 2016. The 2017 SG&A costs include amortization of intangibles and other operating costs associated with our Noliac acquisition, which were offset by other expense reductions.

Research and development expenses were $6,380 or 6.0% of sales in the third quarter of 2017 compared to $6,284 or 6.3% of sales in the comparable quarter of 2016. Research and development expenses are focused on expanded applications of existing products and new product development as well as current product and process enhancements. 

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Restructuring charges were $1,435 or 1.4% of sales in the third quarter of 2017. The charges were mainly for building and equipment relocation, severance, and travel costs related to the restructuring of certain operations as part of the 2016 Restructuring Plan. Restructuring charges were $1,969 or 2.0% of sales in the third quarter of 2016.

The loss on sale of assets in the third quarter of 2017 was driven by a loss on the sale of vacant land at our Hopkinton, Massachusetts facility in September 2017.

Operating earnings were $13,111 or 12.3% of sales in the third quarter of 2017 compared to operating earnings of $12,490 or 12.5% of sales in the comparable quarter of 2016 as a result of the items discussed above.

Other income and expense items are summarized in the following table:

	Three Months Ended
	September 30,			September 30,
	2017			2016
Interest expense	$	(773	)	$	(917	)
Interest income	363			203
Other income (expense)	1,258			(46		)
Total other income (expense)	$	848		$	(760	)

Interest expense decreased in the third quarter of 2017 versus the same quarter of 2016 primarily as a result of a reduction in interest related to interest rate swaps. Interest income increased due to higher cash balances. Other income in the third quarter of 2017 was principally driven by foreign currency translation gains, mainly due to the depreciation of the U.S. Dollar compared to the Chinese Renminbi and Euro during the quarter.

	Three Months Ended
	September 30,		September 30,
	2017		2016
Effective tax rate	31.1	%	68.3	%

Our effective income tax rate was 31.1% and 68.3% in the third quarter of 2017 and 2016, respectively. The tax rate in the third quarter of 2017 was lower than the U.S. statutory tax rate due primarily to tax benefits recorded upon vesting of restricted stock units, a release of valuation allowances recorded against realizable foreign NOLs, and favorable tax rates on foreign earnings, offset by the impact of state taxes, tax expense for withholding taxes on the anticipated distribution of earnings in China, and other various permanent items.

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Results of Operations: Nine Months Ended September 30, 2017 versus Nine Months Ended September 30, 2016

The following table highlights changes in significant components of the Unaudited Condensed Consolidated Statements of Earnings for the nine months ended September 30, 2017, and September 30, 2016:

	Nine Months Ended							Percent of	Percent of
	September 30,		September 30,			Percent		Net Sales –	Net Sales –
	2017		2016			Change		2017	2016
Net sales	$	312,083	$	295,095		5.8		100.0	100.0
Cost of goods sold	204,527		190,528			7.3		65.5	64.6
Gross margin	107,556		104,567			2.9		34.5	35.4
Selling, general and administrative expenses	46,970		46,459			1.1		15.1	15.8
Research and development expenses	18,432		18,414			0.1		5.9	6.2
Restructuring charges	2,942		2,175			35.3		0.9	0.7
Loss (gain) on sale of assets	698		(11,501		)	(106.1	)	0.2	(3.9	)
Total operating expenses	69,042		55,547			24.3		22.1	18.8
Operating earnings	38,514		49,020			(21.4	)	12.4	16.6
Total other income (expense)	1,594		(3,146		)	(150.7	)	0.5	(1.1	)
Earnings before income taxes	40,108		45,874			(12.6	)	12.9	15.5
Income tax expense	12,039		19,804			(39.2	)	3.9	6.7
Net earnings	$	28,069	$	26,070		7.7		9.0	8.8
Earnings per share:
Diluted net earnings per share	$	0.84	$	0.79

Sales were $312,083 in the nine months ended September 30, 2017, an increase of $16,988 or 5.8% from the nine months ended September 30, 2016. Sales to automotive markets increased $7,688 or 3.9%. Other sales increased $9,300 or 9.4%. The Noliac acquisition added $4,097 in sales for the nine months ended September 30, 2017.  Changes in foreign exchange rates reduced sales by $1,400 year-over-year due to the U.S. Dollar appreciating compared to the Chinese Renminbi and Euro and relating mostly to sales of automotive products.

Gross margin as a percent of sales was 34.5% in the first nine months of 2017 compared to 35.4% in the first nine months of 2016. The decrease in gross margin was driven mainly by product mix changes, costs relating to certain production rework issues in the first half of 2017 and an unfavorable impact of foreign exchange rate movements.

Selling, general and administrative expenses were $46,970 or 15.1% of sales in the nine months ended September 30, 2017 versus $46,459 or 15.8% of sales in the comparable year-to-date period in 2016. The increase was primarily attributable to incremental costs resulting from the Noliac acquisition in 2017 and the single crystal acquisition in 2016, including amortization of intangibles, which were partially offset by other expense reductions and the timing of certain expenses.

Research and development expenses were $18,432 or 5.9% of sales in the nine months ended September 30, 2017 compared to $18,414 or 6.2% of sales in the comparable prior year period. Research and development expenses are focused on expanded applications of existing products and new product development as well as current product and process enhancements. 

Restructuring charges were $2,942 or 0.9% of sales in the first nine months of 2017. The charges were mainly for building and equipment relocation, severance, and travel costs related to the restructuring of certain operations as part of the 2016 Restructuring Plan. Restructuring charges were $2,175 or 0.7% of sales in the first nine months of 2016.

The loss on sale of assets in 2017 was driven by a loss on the sale of vacant land at our Hopkinton, Massachusetts facility in September 2017. The gain on sale of assets in 2016 is due primarily to a gain on the sale of our building in Canada in June 2016.

Operating earnings were $38,514 or 12.4% of sales in the nine months ended September 30, 2017, compared to operating earnings of $49,020 or 16.6% of sales in the nine months ended September 30, 2016, as a result of the items discussed above.

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Other income and expense items are summarized in the following table:

	Nine Months Ended
	September 30,			September 30,
	2017			2016
Interest expense	$	(2,209	)	$	(2,746	)
Interest income	914			1,082
Other income (expense)	2,889			(1,482		)
Total other income (expense)	$	1,594		$	(3,146	)

Interest expense decreased in the first nine months of 2017 versus the same period of 2016 primarily as a result of a reduction in interest related to interest rate swaps. Interest income decreased due to lower investible cash balances at certain foreign locations. Other income in the first nine months of 2017 was principally driven by foreign currency translation gains, mainly due to the depreciation of the U.S. Dollar compared to the Chinese Renminbi and Euro during the period.

	Nine Months Ended
	September 30,		September 30,
	2017		2016
Effective tax rate	30.0	%	43.2	%

Our effective income tax rate was 30.0% and 43.2% in the first nine months of 2017 and 2016, respectively. The tax rate in the first nine months of 2017 was lower than the U.S. statutory tax rate due primarily to tax benefits recorded upon vesting of restricted stock units, a release of valuation allowances recorded against realizable foreign NOLs, and favorable tax rates on foreign earnings, offset by the impact of state taxes, tax expense for withholding taxes on the anticipated distribution of earnings in China, and other various permanent items.

Liquidity and Capital Resources

Cash and cash equivalents were $116,152 at September 30, 2017, and $113,805 at December 31, 2016, of which $114,845 and $113,359, respectively, were held outside the United States. The increase in cash and cash equivalents of $2,347 was primarily driven by cash generated from operating activities of $46,967, which was mostly offset by the payment for the Noliac acquisition of $19,121, capital expenditures of $11,987, net long-term debt payments of $6,800 and dividends paid of $3,942. Total long-term debt was $82,300 as of September 30, 2017 and $89,100 as of December 31, 2016. Total debt as a percentage of total capitalization, defined as the sum of notes payable and long-term debt as a percentage of total debt and shareholders' equity, was 19.2% at September 30, 2017, compared to 22.1% at December 31, 2016.

Working capital increased by $11,354 during the nine months ended September 30, 2017, primarily due to increases in inventory, accounts receivable, other current assets and cash and cash equivalents, which were partially offset by higher accounts payable.

Cash Flows from Operating Activities

Net cash provided by operating activities was $46,967 during the first nine months of 2017. Components of net cash provided by operating activities included net earnings of $28,069, depreciation and amortization expense of $15,061 and other net non-cash items of $8,746, offset by the net cash outflow from changes in assets and liabilities of $4,909.

Cash Flows from Investing Activities

Net cash used in investing activities for the first nine months of 2017 was $30,623, driven by the net payment for our Noliac acquisition of $19,121 and capital expenditures of $11,987.

Cash Flows from Financing Activities

Net cash used in financing activities for the first nine months of 2017 was $13,463. These cash outflows were the result of net long-term debt payments of $6,800, dividend payments of $3,942, taxes paid on behalf of employees for equity awards in the amount of $1,571 and short-term notes payable payments of $1,150.

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Capital Resources

Long‑term debt was comprised of the following:

	As of
	September 30,			December 31,
	2017			2016
Revolving credit facility due in 2020	$	82,300		$	89,100
Weighted average interest rate	2.3		%	1.5		%
Amount available	$	215,635		$	208,735
Total credit facility	$	300,000		$	300,000
Standby letters of credit	$	2,065		$	2,165
Commitment fee percentage per annum	0.25		%	0.25		%

On August 10, 2015, we entered into a new five-year credit agreement (“Revolving Credit Facility”) with a group of banks in order to support our financing needs.  The Revolving Credit Facility originally provided for a credit line of $200,000. On May 23, 2016, we requested and received a $100,000 increase in the aggregate revolving credit commitments under the existing credit agreement, which increased the credit line from $200,000 to $300,000. 

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 to comply with these covenants could reduce the borrowing availability under the Revolving Credit Facility.  We were in compliance with all debt covenants at September 30, 2017. 

We use interest rate swaps to convert the Revolving Credit Facility’s variable rate of interest into a fixed rate. In the second quarter of 2012, we 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, we 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. In the third quarter of 2016, we entered into three additional forward-starting interest rate swap agreements to fix interest rates on $50,000 of long-term debt for the periods August 2017 to August 2020. 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.

Generally, our practice and intention is to reinvest the earnings of our non-U.S. subsidiaries outside the U.S. However, we determined during 2015 that as a result of changes in the business, the foreign earnings of our subsidiaries in Canada and the U.K. were no longer permanently reinvested. Therefore, a provision for the expected taxes on repatriation of those earnings was recorded at that time. Any repatriation may not result in significant cash income tax payments as the taxable event would likely be offset by the utilization of our available tax credits, resulting in no significant net cash taxes being incurred. We do not provide for U.S. income taxes on undistributed earnings of our foreign subsidiaries that are intended to be permanently reinvested.

We have historically funded our capital and operating needs primarily through cash flows from operating activities, supported by available credit under our Revolving Credit Facility. We believe that cash flows from operating activities and available borrowings under our Revolving Credit Facility will be adequate to fund our working capital, capital expenditures and debt service requirements for at least the next twelve months. However, we may choose to pursue additional equity and debt financing to provide additional liquidity or to fund acquisitions.

Critical Accounting Policies and Estimates

Management prepared the consolidated financial statements of CTS under accounting principles generally accepted in the United States of America. These principles require the use of estimates, judgments, and assumptions. We believe that the estimates, judgments, and assumptions we used are reasonable, based upon the information available.

Our estimates and assumptions affect the reported amounts in our financial statements. The following accounting policies comprise those that we believe are the most critical in understanding and evaluating our reported financial results.

Revenue Recognition

Product revenue is recognized once four criteria are met: (1) we have persuasive evidence that an arrangement exists; (2) delivery has occurred and title has passed to the customer, which generally happens at the point of shipment, provided that no significant obligations remain; (3) the price is fixed and determinable; and (4) collectability is reasonably assured.

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Product Warranties

Provisions for estimated warranty expenses related to our automotive products are made at the time products are sold. These estimates are established using a quoted industry rate. We adjust our warranty reserve for any known or anticipated warranty claims as new information becomes available. We evaluate our warranty obligations at least quarterly and adjust our accruals if it is probable that future costs will be different than our current reserve.

Accounts Receivable

We have standardized credit granting and review policies and procedures for all customer accounts, including:

• Credit reviews of all new customer accounts,

• Ongoing credit evaluations of current customers,

• Credit limits and payment terms based on available credit information,

• Adjustments to credit limits based upon payment history and the customer's current credit worthiness,

• An active collection effort by regional credit functions, reporting directly to the corporate financial officers, and;

• Limited credit insurance on the majority of our international receivables.

We reserve for estimated credit losses based on historical experience and specific customer collection issues. Over the last three years, accounts receivable reserves have been approximately 0.2% to 0.6% of total accounts receivable. We believe our reserve level is appropriate considering the quality of the portfolio. While credit losses have historically been within expectations and the reserves established, we cannot guarantee that our credit loss experience will continue to be consistent with historical experience.

Inventories

We value our inventories at the lower of the actual cost to purchase or manufacture using the first-in, first-out ("FIFO") method, or net realizable value. We review inventory quantities on hand and record a provision for excess and obsolete inventory based on forecasts of product demand and production requirements.

Over the last three years, our reserves for excess and obsolete inventories have ranged from 16.8% to 18.9% of gross inventory. We believe our reserve level is appropriate considering the quantities and quality of the inventories.

Retirement Plans

Actuarial assumptions are used in determining pension income and expense and our pension benefit obligation. We utilize actuaries from consulting companies in each applicable country to develop our discount rates that match high-quality bonds currently available and expected to be available during the period to maturity of the pension benefit in order to provide the necessary future cash flows to pay the accumulated benefits when due. After considering the recommendations of our actuaries, we have assumed a discount rate, expected rate of return on plan assets and a rate of compensation increase in determining our annual pension income and expense and the projected benefit obligation. During the fourth quarter of each year, we review our actuarial assumptions in light of current economic factors to determine if the assumptions need to be adjusted. Changes in the actuarial assumptions could have a material effect on our results of operations.

Valuation of Goodwill

Goodwill of a reporting unit is tested for impairment annually, or more frequently, if an event occurs or circumstances change that would more-likely-than-not reduce the fair value of a reporting unit below its carrying amount. Examples of such events or circumstances include, but are not limited to, the following:

• Significant decline in market capitalization relative to net book value,

• Significant adverse change in legal factors or in the business climate,

• Adverse action or assessment by a regulator,

• Unanticipated competition,

• More-likely-than-not expectation that a reporting unit or a significant portion of a reporting unit will be sold or otherwise disposed of,

• Testing for recoverability of a significant asset group within a reporting unit, and

• Allocation of a portion of goodwill to a business to be disposed.

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If we believe that one or more of the above indicators of impairment have occurred, we perform an impairment test. The test involves comparing the fair values of our reporting units with their carrying values. We recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit's fair value, but only to the extent of goodwill recognized.

We generally determine the fair value of our reporting units using two valuation methods: "Income Approach — Discounted Cash Flow Method" and "Market Approach — Guideline Public Company Method". The approach defined below is based upon our last impairment test conducted as of October 1, 2016.

Under the "Income Approach — Discounted Cash Flow Method", the key assumptions include sales, cost of sales, and operating expense projections through the year 2021. These assumptions were determined by management utilizing our internal operating plan and assuming growth rates for revenues, operating expenses, and gross margin assumptions. The fourth key assumption under this approach is the discount rate, which is determined by looking at current risk-free rates, current market interest rates and the evaluation of risk premium relevant to the business segment. If any of our assumptions were to change or were incorrect, our fair value calculation may change, which could result in impairment.

Under the "Market Approach — Guideline Public Company Method", we identified eight publicly traded companies which we believe have significant relevant similarities to CTS. For these eight companies, we calculated a range of EBITDA multiples derived from the ratio of enterprise value to EBITDA and compared these multiples to the corresponding multiples for each of our reporting units. Similar to the income approach discussed above, sales, cost of sales, operating expenses and growth rates were key assumptions utilized in developing projected EBITDA levels for each of our reporting units. The market prices of CTS and the other guideline company's shares are also key assumptions as they are used to calculate enterprise value.

The results of these two methods are weighted based upon management's determination. The Market approach is based upon historical and current economic conditions, which might not reflect the long-term prospects or opportunities for our reporting units being evaluated.

If the carrying amount of a reporting unit exceeds the reporting unit's fair value, we perform the second step of the goodwill impairment test to determine the amount of impairment loss, if any. This involves comparing the implied fair value of the affected reporting unit's goodwill with the carrying value of that goodwill.

There have not been any significant changes to our impairment testing methodology other than updates to the assumptions to reflect the current market environment. Based upon our latest assessment, we determined that our goodwill was not impaired as of October 1, 2016. We will monitor future results and will perform a test if indicators trigger an impairment review.

Valuation of Other Intangible and Long-Lived Assets

We evaluate the impairment of identifiable intangibles and other long-lived assets whenever events or changes in circumstances indicate that the carrying value may not be recoverable. Factors considered that may trigger an impairment review consist of, but are not limited to, the following:

• Significant decline in market capitalization relative to net book value,

• Significant underperformance relative to expected historical or projected future operating results,

• Significant changes in the manner of use of the acquired assets or the strategy for the overall business,

• Significant negative industry or economic trends.

If we believe that one or more indicators of impairment have occurred, we perform a recoverability test by comparing the carrying amount of an asset or asset group to the sum of the undiscounted cash flows expected to result from the use and the eventual disposition of the asset or asset group. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value. No indicators of impairment were identified as of September 30, 2017.

Income Taxes

Our income tax expense, deferred tax assets and liabilities, and liabilities for unrecognized tax benefits reflect management’s best estimate of current and future taxes to be paid. We are subject to income taxes in the United States and numerous foreign jurisdictions. Significant judgments and estimates are required in the determination of the consolidated income tax expense.

Deferred income taxes arise from temporary differences between the tax basis of assets and liabilities and their reported amounts in the financial statements, which will result in taxable or deductible amounts in the future. In evaluating our ability to recover our deferred tax assets in the jurisdiction from which they arise, we consider all available positive and negative evidence, including scheduled reversals of deferred tax liabilities, projected future taxable income, tax-planning strategies, and results of recent

32

operations. The assumptions about future taxable income require the use of significant judgment and are consistent with the plans and estimates we are using to manage the underlying businesses.

The calculation of our tax liabilities involves dealing with uncertainties in the application of complex tax laws and regulations in a multitude of jurisdictions across our global operations. ASC 740 states that a tax benefit from an uncertain tax position may be recognized when it is more-likely-than-not that the position will be sustained upon examination, including resolutions of any related appeals or litigation processes, on the basis of its technical merits.  We record unrecognized tax benefits as liabilities in accordance with ASC 740 and adjust these liabilities when our judgment changes as a result of the evaluation of new information not previously available. Because of the complexity of some of these uncertainties, the ultimate resolution may result in a payment that is materially different from our current estimate of the unrecognized tax benefit liabilities. These differences will be reflected as increases or decreases to income tax expense in the period in which new information is available.

Our practice is to recognize interest and penalties related to income tax matters as part of income tax expense.

We earn a significant amount of our operating income outside of the U.S., which is generally deemed to be permanently reinvested in foreign jurisdictions. However, we determined during 2015 that as a result of changes in the business, the foreign earnings of our subsidiaries in Canada and the U.K. were no longer permanently reinvested. Therefore, a provision for the expected taxes on repatriation of those earnings was recorded. We do not intend to repatriate funds beyond the amount from our Canadian and U.K. subsidiaries; however, should we require more capital in the U.S. than is generated by our domestic operations, we could elect to repatriate funds held in foreign jurisdictions or raise capital in the U.S. through debt or equity issuances. Repatriation would result in a higher effective tax rate. Borrowing in the U.S. would result in increased interest expense.

Significant Customers

Our net sales to customers representing at least 10% of total net sales were as follows:

	Three Months Ended				Nine Months Ended
	September 30,		September 30,		September 30,		September 30,
	2017		2016		2017		2016
Cummins Inc.	14.6	%	9.5	%	13.6	%	9.8	%
Honda Motor Co.	11.7	%	10.5	%	10.8	%	10.8	%
Toyota Motor Corporation	9.9	%	9.9	%	10.2	%	10.5	%

Forward‑Looking Statements

This document contains statements that are, or may be deemed to be, forward‑looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward‑looking statements include, but are not limited to, any financial or other guidance, statements that reflect our current expectations concerning future results and events, and any other statements that are not based solely on historical fact. Forward‑looking statements are based on management’s expectations, certain assumptions and currently available information. Readers are cautioned not to place undue reliance on these forward‑looking statements, which speak only as of the date hereof and are based on various assumptions as to future events, the occurrence of which necessarily are subject to uncertainties. These forward‑looking statements are made subject to certain risks, uncertainties and other factors, which could cause our actual results, performance or achievements to differ materially from those presented in the forward‑looking statements. Examples of factors that may affect future operating results and financial condition include, but are not limited to: changes in the economy generally and in respect to the business in which CTS operates; unanticipated issues in integrating acquisitions; the results of actions to reposition our business; rapid technological change; general market conditions in the automotive, communications, and computer industries, as well as conditions in the industrial, defense and aerospace, and medical markets; reliance on key customers; unanticipated natural disasters or other events; the ability to protect our intellectual property; pricing pressures and demand for our products; unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters as well as any product liability claims; and risks associated with our international operations, including trade and tariff barriers, exchange rates and political and geopolitical risks. Many of these and other risks and uncertainties are discussed in further detail in Item 1A. of CTS' Annual Report on Form 10‑K for the fiscal year ended December 31, 2016. We undertake no obligation to publicly update our forward‑looking statements to reflect new information or events or circumstances that arise after the date hereof, including market or industry changes.

33

Item 3.   Quantitative and Qualitative Disclosures About Market Risk

There have been no material changes in our market risk since December 31, 2016.

Item 4.   Controls and Procedures

Pursuant to Rule 13a-15(e) of the Securities and Exchange Act of 1934, management, under the direction of our Chief Executive Officer and Chief Financial Officer, evaluated our disclosure controls and procedures.  Based on such evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of September 30, 2017.

Changes in Internal Control Over Financial Reporting

There were no changes in our internal control over financial reporting for the quarter ended September 30, 2017, that have materially affected or are reasonably likely to materially affect our internal control over financial reporting. 

PART II - OTHER INFORMATION

Not applicable

Item 1. Legal Proceedings

From time to time we are involved in litigation with respect to matters arising from the ordinary conduct of our business, and currently certain claims are pending against us. In the opinion of management, based upon presently available information, either adequate provision for anticipated costs have been accrued or the ultimate anticipated costs will not materially affect our consolidated financial position, results of operations, or cash flows.

Item 1A. Risk Factors

There have been no significant changes to our risk factors since December 31, 2016.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

On April 27, 2015, we announced that our Board of Directors authorized an expansion to its repurchase program by authorizing the purchase of an additional $25 million dollars of its common stock in the open market.   This authorization has no expiration. As shown in the following table, there were no stock repurchases during the quarter ended September 30, 2017.

			(c)
			Total Number	(d)
	(a)		of Shares	Maximum Dollar Value
	Total Number of	(b)	Purchased as	of Shares That May Yet Be
	Shares	Average Price	Part of Plans or	Purchased Under the
	Purchased	Paid per Share	Program	Plans or Programs(2)
Balance at December 31, 2016				$	17,554
January 1, 2017 - September 30, 2017	—	—	—	$	—
Total	—	—	—	$	17,554

34

Item 6.  Exhibits

(31)(a)	Certification pursuant to Section 302 of the Sarbanes‑Oxley Act of 2002.
(31)(b)	Certification pursuant to Section 302 of the Sarbanes‑Oxley Act of 2002.
(32)(a)	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes‑Oxley Act of 2002.
(32)(b)	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes‑Oxley Act of 2002.
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document
101.LAB	XBRL Taxonomy Extension Label Linkbase Document
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

CTS Corporation	CTS Corporation
/s/ Luis F. Machado	/s/ Ashish Agrawal
Luis F. Machado Vice President, General Counsel and Secretary	Ashish Agrawal Vice President and Chief Financial Officer
Dated: October 26, 2017	Dated: October 26, 2017

35

EX-31.A

EXHIBIT (31)(a)

CERTIFICATION

I, Kieran O’Sullivan, certify that:

1. I have reviewed this quarterly report on Form 10-Q of CTS Corporation:

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; and

(b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statement for external purposes in accordance with generally accepted accounting principles; and

(c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusion about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent function):

(a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: October 26, 2017	/s/ Kieran O’Sullivan
	Kieran O’Sullivan
	Chairman, President and Chief Executive Officer

EX-31.B

EXHIBIT (31)(b)

CERTIFICATION

I, Ashish Agrawal, certify that:

1. I have reviewed this quarterly report on Form 10-Q of CTS Corporation:

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; and

(b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statement for external purposes in accordance with generally accepted accounting principles; and

(c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusion about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent function):

(a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: October 26, 2017	/s/Ashish Agrawal
	Ashish Agrawal
	Vice President and Chief Financial Officer

EX-32.A

EXHIBIT (32)(a)

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the quarterly report of CTS Corporation (the Company) on Form 10-Q for the quarter ended September 30, 2017, as filed with the Securities and Exchange Commission on the date hereof (the Report), the undersigned officer of the Company certifies, pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to ss. 906 of the Sarbanes-Oxley Act of 2002, that:

(1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: October 26, 2017	/s/ Kieran O’Sullivan
	Kieran O’Sullivan
	Chairman, President and Chief Executive Officer

A signed original of this written statement required by Section 906 has been provided to CTS Corporation and will be retained by CTS Corporation and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.B

EXHIBIT (32)(b)

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the quarterly report of CTS Corporation (the Company) on Form 10-Q for the quarter ended September 30, 2017, as filed with the Securities and Exchange Commission on the date hereof (the Report), the undersigned officer of the Company certifies, pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to ss. 906 of the Sarbanes-Oxley Act of 2002, that:

(1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: October 26, 2017	/s/Ashish Agrawal
	Ashish Agrawal
	Vice President and Chief Financial Officer

A signed original of this written statement required by Section 906 has been provided to CTS Corporation and will be retained by CTS Corporation and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Oct. 23, 2017
Document and Entity Information
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q3
Trading Symbol	CTS
Entity Registrant Name	CTS CORP
Entity Central Index Key	0000026058
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		32,937,050

XML

Consolidated Statements of Earnings - Unaudited - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Statement [Abstract]
Net sales	$ 106,243	$ 99,697	$ 312,083	$ 295,095
Cost of goods sold	68,705	63,056	204,527	190,528
Gross Margin	37,538	36,641	107,556	104,567
Selling, general and administrative expenses	15,915	16,048	46,970	46,459
Research and development expenses	6,380	6,284	18,432	18,414
Restructuring charges	1,435	1,969	2,942	2,175
Gain (Loss) on Disposition of Property Plant Equipment	(697)	150	(698)	11,501
Operating earnings	13,111	12,490	38,514	49,020
Other income (expense):
Interest expense	(773)	(917)	(2,209)	(2,746)
Interest income	363	203	914	1,082
Other income (expense)	1,258	(46)	2,889	(1,482)
Total other income (expense)	848	(760)	1,594	(3,146)
Earnings before income taxes	13,959	11,730	40,108	45,874
Income tax expense	4,340	8,010	12,039	19,804
Net earnings	$ 9,619	$ 3,720	$ 28,069	$ 26,070
Earnings per share:
Basic (in dollars per share)	$ 0.29	$ 0.11	$ 0.85	$ 0.80
Diluted (in dollars per share)	$ 0.29	$ 0.11	$ 0.84	$ 0.79
Basic weighted - average common shares outstanding (in shares):	32,935	32,759	32,876	32,716
Effect of dilutive securities (in shares)	456	495	475	494
Diluted weighted - average common shares outstanding (in shares)	33,391	33,254	33,351	33,210
Cash dividends declared per share (in dollars per share)	$ 0.04	$ 0.04	$ 0.12	$ 0.12

XML

Condensed Consolidated Statements of Comprehensive Earnings - Unaudited - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Net earnings	$ 9,619	$ 3,720	$ 28,069	$ 26,070
Other comprehensive income (loss):
Changes in fair market value of derivatives, net of tax	(45)	(263)	563	(36)
Changes in unrealized pension cost, net of tax	936	898	2,694	2,753
Cumulative translation adjustment, net of tax	164	(164)	452	(890)
Other comprehensive income	1,055	471	3,709	1,827
Comprehensive earnings	$ 10,674	$ 4,191	$ 31,778	$ 27,897

XML

Condensed Consolidated Balance Sheets - Unaudited - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current Assets
Cash and cash equivalents	$ 116,152	$ 113,805
Accounts receivable, net	64,861	62,612
Inventories, net	35,308	28,652
Other current assets	13,453	10,638
Total current assets	229,774	215,707
Property, plant and equipment, net	84,291	82,111
Other Assets
Prepaid pension asset	52,100	46,183
Goodwill	68,933	61,744
Other intangible assets, net	68,652	64,370
Deferred income taxes	37,850	45,839
Other	1,683	1,743
Total other assets	229,218	219,879
Total Assets	543,283	517,697
Short-term Non-bank Loans and Notes Payable	0	1,006
Current Liabilities
Accounts payable	45,479	40,046
Accrued payroll and benefits	11,372	11,369
Accrued liabilities	43,991	45,708
Total current liabilities	100,842	98,129
Long-term debt	82,300	89,100
Post-retirement obligations	6,823	7,006
Other long-term obligations	6,709	5,580
Total Liabilities	196,674	199,815
Shareholders’ Equity
Common stock	304,726	302,832
Additional contributed capital	39,525	40,521
Retained earnings	435,099	410,979
Accumulated other comprehensive loss	(89,485)	(93,194)
Total shareholders’ equity before treasury stock	689,865	661,138
Treasury stock	(343,256)	(343,256)
Total shareholders’ equity	346,609	317,882
Total Liabilities and Shareholders’ Equity	$ 543,283	$ 517,697

XML

Condensed Consolidated Statements of Cash Flows - Unaudited - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 28,069	$ 26,070
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	15,061	14,010
Pension and Other Postretirement Expense (Income)	(1,369)	(1,188)
Stock-based compensation	2,514	1,759
Deferred income taxes	6,777	8,332
Gain (Loss) on Disposition of Assets	(698)	11,501
Loss (gain) on foreign currency hedges, net of cash	126	(15)
Changes in assets and liabilities:
Accounts receivable	202	(5,971)
Inventories	(4,335)	(2,318)
Other assets	(1,890)	(489)
Accounts payable	3,234	2,717
Accrued payroll and benefits	(2,137)	4,854
Accrued expenses	(915)	(949)
Income taxes payable	226	690
Other liabilities	946	(1,543)
Pension and other post-retirement plans	(240)	(393)
Net cash provided by operating activities	46,967	34,065
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(11,987)	(14,467)
Proceeds from sale of assets	485	12,248
Payments for acquisitions, net of cash acquired	(19,121)	(73,063)
Net cash used in investing activities	(30,623)	(75,282)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments of long-term debt	(1,173,000)	(2,048,000)
Proceeds from borrowings of long-term debt	1,166,200	2,053,300
Repayments of Short-term Debt	(1,150)
Dividends paid	(3,942)	(3,923)
Net cash used in financing activities	(13,463)	(405)
Payments Related to Tax Withholding for Share-based Compensation	(1,571)	(1,782)
Effect of exchange rate changes on cash and cash equivalents	(534)	(873)
Net increase (decrease) in cash and cash equivalents	2,347	(42,495)
Cash and cash equivalents at beginning of period	113,805	156,928
Cash and cash equivalents at end of period	116,152	114,433
Supplemental cash flow information:
Cash paid for interest	1,606	2,292
Cash paid for income taxes, net	$ 4,918	$ 10,136

XML

Basis of Presentation

9 Months Ended

Sep. 30, 2017

Accounting Policies [Abstract]

Accounting Changes [Text Block]

Change in Estimate

Beginning in January 2017, we changed the method we use to calculate the service and interest cost components of net periodic benefit cost for our U.S. pension and other post-retirement benefit plans. Previously, we calculated the service and interest cost components using a single weighted-average discount rate derived from the yield curve to measure the benefit obligation at the beginning of the period. In 2017, we began using a full yield curve approach in the estimation of these components of benefit cost by applying the specific spot-rates along the yield curve to the relevant projected cash flows. This approach better aligns each of the projected benefit cash flows to the corresponding spot rates on the yield curve, resulting in a more precise measurement of service and interest costs. The change in method will result in a decrease in the service and interest components of pension costs in 2017. Any decrease to these components as a result of adoption of this approach is equally offset by a decrease in the actuarial losses included in our accumulated other comprehensive loss, with no impact on the measurement of the benefit obligation.

Basis of Presentation

Basis of Presentation

The accompanying condensed consolidated financial statements have been prepared by CTS Corporation (“CTS” "we", "our", "us" 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, 2016.

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.

Change in Estimate

Beginning in January 2017, we changed the method we use to calculate the service and interest cost components of net periodic benefit cost for our U.S. pension and other post-retirement benefit plans. Previously, we calculated the service and interest cost components using a single weighted-average discount rate derived from the yield curve to measure the benefit obligation at the beginning of the period. In 2017, we began using a full yield curve approach in the estimation of these components of benefit cost by applying the specific spot-rates along the yield curve to the relevant projected cash flows. This approach better aligns each of the projected benefit cash flows to the corresponding spot rates on the yield curve, resulting in a more precise measurement of service and interest costs. The change in method will result in a decrease in the service and interest components of pension costs in 2017. Any decrease to these components as a result of adoption of this approach is equally offset by a decrease in the actuarial losses included in our accumulated other comprehensive loss, with no impact on the measurement of the benefit obligation. This change is accounted for prospectively as a change in accounting estimate.

Subsequent Events

We have evaluated subsequent events and transactions for potential recognition or disclosure in the financial statements through the date the consolidated financial statements are issued.

XML

Accounts Receivable

9 Months Ended

Sep. 30, 2017

Receivables [Abstract]

Accounts Receivable

Accounts Receivable

The components of accounts receivable are as follows:

	As of
	September 30,			December 31,
	2017			2016
Accounts receivable, gross	$	65,237		$	62,782
Less: Allowance for doubtful accounts	(376		)	(170		)
Accounts receivable, net	$	64,861		$	62,612

XML

Inventories

9 Months Ended

Sep. 30, 2017

Inventory Disclosure [Abstract]

Inventories

Inventories

Inventories consist of the following:

	As of
	September 30,			December 31,
	2017			2016
Finished goods	$	8,255		$	7,513
Work-in-process	12,789			9,596
Raw materials	21,383			17,680
Less: Inventory reserves	(7,119		)	(6,137		)
Inventories, net	$	35,308		$	28,652

XML

Property, Plant and Equipment

9 Months Ended

Sep. 30, 2017

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, Plant and Equipment

Property, plant and equipment is comprised of the following:

	As of
	September 30,			December 31,
	2017			2016
Land	$	1,151		$	2,330
Buildings and improvements	65,830			63,621
Machinery and equipment	220,436			213,198
Less: Accumulated depreciation	(203,126		)	(197,038		)
Property, plant and equipment, net	$	84,291		$	82,111
Depreciation expense for the nine months ended September 30, 2017				$	10,201
Depreciation expense for the nine months ended September 30, 2016				$	9,755

XML

Retirement Plans

9 Months Ended

Sep. 30, 2017

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						Nine Months Ended
	September 30,			September 30,			September 30,			September 30,
	2017			2016			2017			2016
Net pension income	$	(492	)	$	(440	)	$	(1,416	)	$	(1,234	)

The components of net pension (income) expense for our domestic and foreign plans include the following: 

	DomesticPension Plans						Foreign Pension Plans
	Three Months Ended						Three Months Ended
	September 30,			September 30,			September 30,			September 30,
	2017			2016			2017			2016
Service cost	$	—		$	21		$	12		$	13
Interest cost	2,068			2,756			8			12
Expected return on plan assets (1)	(4,060		)	(4,744		)	(5		)	(33		)
Amortization of loss	1,446			1,499			39			36
(Income) expense, net	$	(546	)	$	(468	)	$	54		$	28

(1) Expected return on plan assets is net of expected investment expenses and certain administrative expenses.

	DomesticPension Plans						Foreign Pension Plans
	Nine Months Ended						Nine Months Ended
	September 30,			September 30,			September 30,			September 30,
	2017			2016			2017			2016
Service cost	$	—		$	65		$	36		$	38
Interest cost	6,204			8,268			25			34
Expected return on plan assets (1)	(12,181		)	(14,232		)	(15		)	(19		)
Amortization of loss	4,338			4,495			116			105
Other cost due to retirement	61			12			—			—
(Income) expense, net	$	(1,578	)	$	(1,392	)	$	162		$	158

(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 other post-retirement plan includes the following components:

	Three Months Ended						Nine Months Ended
	September 30,			September 30,			September 30,			September 30,
	2017			2016			2017			2016
Service cost	$	—		$	—		$	1		$	2
Interest cost	41			52			121			156
Amortization of gain	(25		)	(37		)	(75		)	(112		)
Post-retirement expense	$	16		$	15		$	47		$	46

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Other Intangible Assets

9 Months Ended

Sep. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Other Intangible Assets

Other Intangible Assets

Intangible assets consist of the following components:

	As of
	September 30, 2017
	Gross Carrying Amount		Accumulated Amortization			Net Amount
Customer lists/relationships	$	64,323	$	(32,833	)	$	31,490
Patents	10,319		(10,319		)	—
Technology and other intangibles	44,460		(9,498		)	34,962
In process research and development	2,200		—			2,200
Other intangible assets, net	$	121,302	$	(52,650	)	$	68,652
Amortization expense for the three months ended September 30, 2017			$	1,711
Amortization expense for the nine months ended September 30, 2017			$	4,860

	As of
	December 31, 2016
	Gross Carrying Amount		Accumulated Amortization			Net Amount
Customer lists/relationships	$	63,386	$	(30,318	)	$	33,068
Patents	10,319		(10,319		)	—
Technology and other intangibles	36,715		(7,613		)	29,102
In process research and development	2,200		—			2,200
Other intangible assets, net	$	112,620	$	(48,250	)	$	64,370
Amortization expense for the three months ended September 30, 2016			$	1,638
Amortization expense for the nine months ended September 30, 2016			$	4,254

Amortization expense remaining for other intangible assets is as follows: 

	Amortization expense
2017	$	1,708
2018	6,763
2019	6,754
2020	6,624
2021	6,467
Thereafter	40,336
Total amortization expense	$	68,652

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Costs Associated with Exit and Restructuring Activities

9 Months Ended

Sep. 30, 2017

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 a separate component of Operating earnings. 

Total restructuring charges, all related to the June 2016 Plan described below, were as follows:

	Three Months Ended
	September 30, 2017		September 30, 2016
Restructuring charges	$	1,435	$	1,969

	Nine Months Ended
	September 30, 2017		September 30, 2016
Restructuring charges	$	2,942	$	2,175

In June 2016, we announced plans to restructure operations by phasing out production at our Elkhart facility by mid-2018 and transitioning it into a research and development center supporting our global operations ("June 2016 Plan"). Additional organizational changes will also occur in various other locations. During the third quarter of 2017, we revised the June 2016 Plan. The amendment added an additional $1,100 in planned costs related to the relocation of our corporate headquarters in Lisle, IL and our plant in Bolingbrook, IL, both of which will be consolidated into a single facility. The amendment does not impact any additional employees. The total cost of the plan is expected to be approximately $13,400 and will impact approximately 230 employees. The total restructuring liability related to severance and other one-time benefit arrangements under the June 2016 Plan was $1,546 at September 30, 2017, and $1,739 at December 31, 2016. Additional costs related to line movements, equipment charges, and other costs will be expensed as incurred.

The following table displays the planned restructuring charges associated with the June 2016 Plan as well as a summary of the actual costs incurred through September 30, 2017:

			Actual costs
	Planned		incurred through
June 2016 Plan	Costs		September 30, 2017
Workforce reduction	$	3,075	$	2,895
Building and equipment relocation	9,025		2,584
Other charges	1,300		511
Total restructuring charges	$	13,400	$	5,990

In April 2014, we announced plans to restructure our operations and consolidate our Canadian operations into other existing facilities as part of our overall plan to simplify its business model and rationalize our global footprint (“April 2014 Plan”).  These restructuring actions, which were completed during 2015, impacted approximately 120 positions. The remaining restructuring liability related to the April 2014 Plan was $461 at September 30, 2017, and $423 at December 31, 2016.

The following table displays the restructuring liability activity for all plans for the nine months ended September 30, 2017: 

Combined Plans
Restructuring liability at January 1, 2017	$	2,162
Restructuring charges	2,942
Cost paid	(3,162		)
Other activity (1)	65
Restructuring liability at September 30, 2017	$	2,007

(1) Other activity includes the effects of currency translation and other charges that do not flow through restructuring expense.

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Accrued Liabilities

9 Months Ended

Sep. 30, 2017

Other Liabilities Disclosure [Abstract]

Accrued Liabilities

Accrued Liabilities

The components of accrued liabilities are as follows: 

	As of
	September 30,		December 31,
	2017		2016
Accrued product related costs	$	4,681	$	5,556
Accrued income taxes	10,157		9,826
Accrued property and other taxes	2,435		1,917
Accrued professional fees	1,687		1,633
Dividends payable	1,317		1,309
Remediation reserves	17,633		18,176
Other accrued liabilities	6,081		7,291
Total accrued liabilities	$	43,991	$	45,708

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Contingencies

9 Months Ended

Sep. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

Contingencies

Contingencies

Certain processes in the manufacture of our current and past products create by-products classified as hazardous waste. We have been notified by the U.S. Environmental Protection Agency, state environmental agencies, and in some cases, groups of potentially responsible parties, that we may be potentially liable for environmental contamination at several sites currently and formerly owned or operated by us. Some sites, such as Asheville, North Carolina and Mountain View, California, are designated National Priorities List sites under the U.S. Environmental Protection Agency’s Superfund program. We reserve for probable remediation activities and for claims and proceedings against us with respect to other environmental matters. We record reserves on an undiscounted basis. In the opinion of management, based upon presently available information relating to 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, we cannot provide assurance that our ultimate environmental liability 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.

A roll forward of remediation reserves included in accrued liabilities on the balance sheet is comprised of the following:

	As of
	September 30, 2017			December 31, 2016
Balance at beginning of period	$	18,176		$	20,603
Remediation expense	299			556
Net remediation reimbursements (payments)	(842		)	(2,983		)
Balance at end of the period	$	17,633		$	18,176

During the second quarter of 2017 we received a reimbursement of remediation costs under a cost-allocation agreement that we entered into with an unrelated party in the amount of $811. This reimbursement has been reflected in the net remediation reimbursements above.

Unrelated to the environmental claims described above, certain other claims are pending against us with respect to matters arising in the ordinary conduct of our 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 us, we believe 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.

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Debt

9 Months Ended

Sep. 30, 2017

Debt Disclosure [Abstract]

Debt

Debt

Long-term debt was comprised of the following:

	As of
	September 30,			December 31,
	2017			2016
Revolving credit facility due in 2020	$	82,300		$	89,100
Weighted average interest rate	2.3		%	1.9		%
Amount available	$	215,635		$	208,735
Total credit facility	$	300,000		$	300,000
Standby letters of credit	$	2,065		$	2,165
Commitment fee percentage per annum	0.25		%	0.25		%

On August 10, 2015, we entered into a new five-year credit agreement (“Revolving Credit Facility”) with a group of banks in order to support our financing needs.  The Revolving Credit Facility originally provided for a credit line of $200,000. On May 23, 2016, we requested and received a $100,000 increase in the aggregate revolving credit commitments under the existing credit agreement, which increased the credit line from $200,000 to $300,000.  

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 our option, at the base rate plus the applicable margin for base rate loans or LIBOR plus the applicable margin for LIBOR loans.  We also pay 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 our total leverage ratio. 

The Revolving Credit Facility requires, among other things, that we comply with a maximum total leverage ratio and a minimum fixed charge coverage ratio.  Failure to comply with these covenants could reduce the borrowing availability under the Revolving Credit Facility.  We were in compliance with all debt covenants at September 30, 2017.  The Revolving Credit Facility requires that we deliver quarterly financial statements, annual financial statements, auditor 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 our 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 our 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.  

We have debt issuance costs related to our long-term debt that is being amortized using the straight-line method over the life of the debt. These costs are included in interest expense in our Condensed Consolidated Statement of Earnings. Amortization expense was approximately $46 for both the three months ended September 30, 2017 and September 30, 2016, respectively, and approximately $139 and $116 for the nine months ended September 30, 2017 and September 30, 2016, respectively.

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Derivative Financial Instruments

9 Months Ended

Sep. 30, 2017

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. At least quarterly, 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 (loss) 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 Condensed 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 (loss) 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 September 30, 2017, we had a net unrealized gain of $350 in accumulated other comprehensive income, all of which is expected to be reclassified to income within the next 12 months. At September 30, 2016 we had a net unrealized loss of $219 in accumulated other comprehensive income (loss). The notional amount of foreign currency forward contracts outstanding was $29.5 million at September 30, 2017.

Interest Rate Swaps

We use 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, we 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. In the third quarter of 2016, we entered into three additional forward-starting interest rate swap agreements to fix interest rates on $50,000 of long-term debt for the periods August 2017 to August 2020. 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 $156. 

The location and fair values of derivative instruments designated as hedging instruments in the Condensed Consolidated Balance Sheets as of September 30, 2017, are shown in the following table:

	As of
	September 30,		December 31,
	2017		2016
Foreign currency hedges reported in Accrued liabilities	$	—	$	601
Foreign currency hedges reported in Other current assets	$	260	$	—
Interest rate swaps reported in Other current assets	$	156	$	2
Interest rate swaps reported in Other assets	$	494	$	751

The Company has elected to net its foreign currency derivative assets and liabilities in the balance sheet in accordance with ASC 210-20 (Balance Sheet, Offsetting). On a gross basis, there were foreign currency derivative assets of $616 and foreign currency derivative liabilities of $356.

The effect of derivative instruments on the Condensed Consolidated Statements of Earnings is as follows:

	Three Months Ended						Nine Months Ended
	September 30,			September 30,			September 30,			September 30,
	2017			2016			2017			2016
Foreign Exchange Contracts:
Loss recognized in Net Sales	$	(194	)	$	(35	)	$	(253	)	$	(125	)
Gain recognized in Cost of Goods Sold	268			51			182			139
Gain recognized in Selling, General and Administrative expense	21			—			31			10
Loss recognized in Other (expenses) income	(2		)	(5		)	(11		)	(9		)
Interest Rate Swaps:
Benefit recorded in Interest Expense	$	12		$	158		$	12		$	471
Total gain / (loss)	$	105		$	169		$	(39	)	$	486

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Accumulated Other Comprehensive (Loss) Income

9 Months Ended

Sep. 30, 2017

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 Condensed Consolidated Balance Sheets, including:

Unrealized gains (losses) on hedges relate to interest rate swaps to convert the revolving credit facility'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 we have deferred income statement recognition of gains and losses until the hedged transactions occur, 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 income / (expense).  Further information related to our pension obligations is included in Note 5 – Retirement Plans.

Cumulative translation adjustments relate to our non-U.S. subsidiary companies that have designated a functional currency other than the U.S. dollar. We are 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 gains for the three and nine months ended September 30, 2017 were $960 and $2,517, respectively, and transaction losses for the three and nine months ended September 30, 2016 were $165 and $1,656, respectively, which have been included in other income (expense) in the Condensed Consolidated Statement of Earnings.

The components of accumulated other comprehensive (loss) income for the three months ended September 30, 2017, are as follows:

							Gain (Loss)
	As of			Gain (Loss)			Reclassified			As of
	June 30,			Recognized			from AOCI			September 30,
	2017			in OCI			to Income			2017
Changes in fair market value of hedges:
Gross	$	1,070		$	37		$	(108	)	$	999
Income tax (benefit) expense	(388		)	(14		)	40			(362		)
Net	682			23			(68		)	637
Changes in unrealized pension cost:
Gross	(148,856		)	—			1,458			(147,398		)
Income tax expense (benefit)	59,668			—			(522		)	59,146
Net	(89,188		)	—			936			(88,252		)
Cumulative translation adjustment:
Gross	(2,132		)	161			—			(1,971		)
Income tax expense	98			3			—			101
Net	(2,034		)	164			—			(1,870		)
Total accumulated other comprehensive (loss) income	$	(90,540	)	$	187		$	868		$	(89,485	)

The components of accumulated other comprehensive (loss) income for the three months ended September 30, 2016, are as follows:

							Gain (Loss)
	As of			Gain (Loss)			Reclassified			As of
	June 30,			Recognized			from AOCI			September 30,
	2016			in OCI			to Income			2016
Changes in fair market value of hedges:
Gross	$	(403	)	$	(643	)	$	221		$	(825	)
Income tax expense (benefit)	151			242			(83		)	310
Net	(252		)	(401		)	138			(515		)
Changes in unrealized pension cost:
Gross	(158,763		)	—			1,437			(157,326		)
Income tax expense (benefit)	63,260			—			(539		)	62,721
Net	(95,503		)	—			898			(94,605		)
Cumulative translation adjustment:
Gross	(1,995		)	(161		)	—			(2,156		)
Income tax expense (benefit)	101			(3		)	—			98
Net	(1,894		)	(164		)	—			(2,058		)
Total accumulated other comprehensive (loss) income	$	(97,649	)	$	(565	)	$	1,036		$	(97,178	)

The components of accumulated other comprehensive (loss) income for the nine months ended September 30, 2017, are as follows:

							Gain (Loss)
	As of			Gain (Loss)			reclassified			As of
	December 31,			Recognized			from AOCI			September 30,
	2016			in OCI			to income			2017
Changes in fair market value of hedges:
Gross	$	116		$	856		$	27		$	999
Income tax benefit	(42		)	(311		)	(9		)	(362		)
Net	74			545			18			637
Changes in unrealized pension cost:
Gross	(151,618		)	—			4,220			(147,398		)
Income tax expense (benefit)	60,672			—			(1,526		)	59,146
Net	(90,946		)	—			2,694			(88,252		)
Cumulative translation adjustment:
Gross	(2,414		)	443			—			(1,971		)
Income tax expense	92			9			—			101
Net	(2,322		)	452			—			(1,870		)
Total accumulated other comprehensive (loss) income	$	(93,194	)	$	997		$	2,712		$	(89,485	)

The components of accumulated other comprehensive (loss) income for the nine months ended September 30, 2016, are as follows:

							Gain (Loss)
	As of			Gain (Loss)			reclassified			As of
	December 31,			Recognized			from AOCI			September 30,
	2015			in OCI			to income			2016
Changes in fair market value of hedges:
Gross	$	(768	)	$	(742	)	$	685		$	(825	)
Income tax expense (benefit)	289			278			(257		)	310
Net	(479		)	(464		)	428			(515		)
Changes in unrealized pension cost:
Gross	(161,719		)	—			4,393			(157,326		)
Income tax expense (benefit)	64,361			—			(1,640		)	62,721
Net	(97,358		)	—			2,753			(94,605		)
Cumulative translation adjustment:
Gross	(1,279		)	(877		)	—			(2,156		)
Income tax expense (benefit)	111			(13		)	—			98
Net	(1,168		)	(890		)	—			(2,058		)
Total accumulated other comprehensive (loss) income	$	(99,005	)	$	(1,354	)	$	3,181		$	(97,178	)

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Shareholders' Equity

9 Months Ended

Sep. 30, 2017

Stockholders' Equity Note [Abstract]

Shareholders' Equity

Shareholders’ Equity

Share count and par value data related to shareholders’ equity are as follows:

	As of
	September 30,	December 31,
	2017	2016
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	56,631,072	56,456,516
Shares outstanding	32,937,050	32,762,494
Treasury stock
Shares held	23,694,022	23,694,022

No common stock repurchases were made during the nine months ended September 30, 2017. Through September 30, 2017, we had purchased an aggregate of $7,446 under a previously board-authorized share repurchase plan allowing for up to $25,000 in stock repurchases. Approximately $17,554 is available for future purchases.

A roll-forward of common shares outstanding is as follows:

	Nine Months Ended
	September 30,	September 30,
	2017	2016
Balance at the beginning of the year	32,762,494	32,548,477
Repurchases	—	—
Shares issued upon exercise of stock options	—	—
Restricted share issuances	174,556	211,032
Balance at the end of the period	32,937,050	32,759,509

Certain potentially dilutive restricted stock units are excluded from diluted earning per share because they are anti-dilutive. The number of awards that were anti-dilutive at September 30, 2017 and September 30, 2016 were 10,094 and 2,019, respectively.

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Equity-Based Compensation

9 Months Ended

Sep. 30, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Equity-Based Compensation

-Based Compensation

At September 30, 2017, we had four active stock-based compensation plans: 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 following table summarizes the compensation expense included in selling, general and administrative expenses in the Condensed Consolidated Statements of Earnings related to stock-based compensation plans:

	Three Months Ended				Nine Months Ended
	September 30,		September 30,		September 30,		September 30,
	2017		2016		2017		2016
Service-Based RSUs	$	415	$	523	$	1,430	$	1,471
Performance-Based RSUs	360		235		1,040		267
Cash-settled RSUs	52		34		44		21
Total	$	827	$	792	$	2,514	$	1,759
Income tax benefit	311		298		945		661
Net	$	516	$	494	$	1,569	$	1,098

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
	September 30, 2017		period
Service-Based RSUs	$	865
Performance-Based RSUs	2,552
Total	$	3,417	1.68

We recognize 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 status of these plans as of September 30, 2017:

	2014 Plan	2009 Plan	2004 Plan	Directors' Plan
Awards originally available	1,500,000	3,400,000	6,500,000	N/A
Performance-based options outstanding	295,000	—	—	—
Maximum potential RSU and cash settled awards outstanding	705,925	122,600	57,391	9,620
Maximum potential awards outstanding	1,000,925	122,600	57,391	9,620
RSUs and cash settled awards vested and released	173,554	—	—	—
Awards available for grant	325,521	—	—	—

Stock Options

We have no stock options exercisable or outstanding as of September 30, 2017, other than the performance-based stock options described below.

Performance-Based Stock Options

During 2015 and 2016, the Compensation Committee of the Board of Directors of the Company (the “Committee”) granted a total of 350,000 performance-based stock option awards (“Performance-Based Option Awards”) for certain employees under the 2014 Plan, of which 295,000 remain outstanding after considering forfeitures.  The Performance-Based Option Awards have an exercise price of $18.37, a term of five years, and generally will become exercisable (provided the optionee remains employed by the Company or an affiliate) upon our attainment of at least $600,000 in revenues during any of our four-fiscal-quarter trailing periods (as determined by the Committee) during the term.  We have not recognized any expense on these Performance-Based Option Awards for the nine-month periods ended September 30, 2017 and 2016, since the revenue target was not deemed likely to be attained based on our current forecast.

Service-Based Restricted Stock Units

The following table summarizes the service-based RSU activity as of and for the nine months ended September 30, 2017: 

	Units		Weighted Average Grant Date Fair Value
Outstanding at January 1, 2017	554,478		$	13.37
Granted	34,040		22.98
Vested and released	(199,251	)	13.79
Forfeited	(9,924	)	16.69
Outstanding at September 30, 2017	379,343		$	13.92
Releasable at September 30, 2017	226,811		$	11.38

Performance and Market-Based Restricted Stock Units

The following table summarizes the performance and market-based RSU activity as of and for the nine months ended September 30, 2017:

	Units		Weighted Average Grant Date Fair Value
Outstanding at January 1, 2017	201,900		$	16.48
Granted	123,919		23.83
Attained by performance	15,285		21.66
Released	(43,275	)	21.66
Forfeited	(26,524	)	22.56
Outstanding at September 30, 2017	271,305		$	18.77
Releasable at September 30, 2017	—		$	—

The following table summarizes each grant of performance awards outstanding at September 30, 2017.

Description	Grant Date	Vesting Year	Vesting Dependency	Target Units Outstanding	Maximum Number of Units to be Granted
2015 - 2017 Performance RSUs	February 5, 2015	2017	35% RTSR, 35% sales growth, 30% cash flow	62,000	124,000
2016 - 2018 Performance RSUs	February 16, 2016	2018	35% RTSR, 35% sales growth, 30% cash flow	92,840	185,680
2017 - 2019 Performance RSUs	February 9, 2017	2019	35% RTSR, 35% sales growth, 30% cash flow	71,796	143,592
2017 - 2019 Performance RSUs	February 9, 2017	2018 - 2020	Operating Income	40,669	40,669
Single Crystal Performance RSUs	March 31, 2016	2018	Various	4,000	8,000

Cash-Settled Restricted Stock Units

Cash-Settled RSUs entitle the holder to receive the cash equivalent of one share of common stock for each unit when the unit vests. These RSUs are issued to key employees residing in foreign locations as direct compensation. Generally, these RSUs vest over a three-year period. Cash-Settled RSUs are classified as liabilities and are remeasured at each reporting date until settled. At September 30, 2017 and September 30, 2016 we had 14,252 and 12,074 cash-settled RSUs outstanding, respectively. At September 30, 2017 and September 30, 2016, liabilities of $214 and $115, respectively were included in Accrued liabilities on our Condensed Consolidated Balance Sheets.

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Fair Value Measurements

9 Months Ended

Sep. 30, 2017

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurements

We use interest rate swaps to convert our Revolving Credit Facility’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 our financial assets that were measured at fair value on a recurring basis at September 30, 2017:

			Quoted
			Prices
	Asset		in Active		Significant
	Carrying		Markets for		Other		Significant
	Value at		Identical		Observable		Unobservable
	September 30,		Instruments		Inputs		Inputs
	2017		(Level 1)		(Level 2)		(Level 3)
Interest rate swaps	$	650	$	—	$	650	$	—
Foreign currency hedges	$	260	$	—	$	260	$	—

The table below summarizes the financial assets (liabilities) that were measured at fair value on a recurring basis as of December 31, 2016:

				Quoted
	Asset			Prices
	(Liability)			in Active		Significant
	Carrying			Markets for		Other			Significant
	Value at			Identical		Observable			Unobservable
	December 31,			Instruments		Inputs			Inputs
	2016			(Level 1)		(Level 2)			(Level 3)
Interest rate swaps	$	753		$	—	$	753		$	—
Foreign currency hedges	$	(601	)	$	—	$	(601	)	$	—

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, 2016	$	(768	)	$	—
Settled in cash	—			54
Included in earnings	928			(18		)
Included in other comprehensive earnings	593			(637		)
Balance at December 31, 2016	$	753		$	(601	)
Settled in cash	(6		)	(75		)
Included in earnings	(6		)	(51		)
Included in other comprehensive earnings	(91		)	987
Balance at September 30, 2017	$	650		$	260

Our long-term debt consists of the Revolving Credit Facility which is recorded at its carrying value. There is a readily determinable market for our 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.

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Income Taxes

9 Months Ended

Sep. 30, 2017

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The effective tax rates for the three and nine-month periods ended September 30, 2017 and 2016 were:

	Three Months Ended				Nine Months Ended
	September 30,		September 30,		September 30,		September 30,
	2017		2016		2017		2016
Effective tax rate	31.1	%	68.3	%	30.0	%	43.2	%

Our effective income tax rate was 31.1% and 68.3% in the third quarter of 2017 and 2016, respectively, and 30.0% and 43.2% for the nine months ended September 30, 2017 and 2016, respectively. The tax rates for the three and nine months ended September 30, 2017 were lower than the U.S. statutory tax rate due primarily to tax benefits recorded upon vesting of restricted stock units, a release of valuation allowances recorded against realizable foreign NOLs, and favorable tax rates on foreign earnings, offset by the impact of state taxes, tax expense for withholding taxes on the anticipated distribution of earnings in China, and other various permanent items.

Our continuing practice is to recognize interest and/or penalties related to income tax matters as income tax expense. For the three months ended September 30, 2017, and 2016, we recorded $181 and $181, respectively, and for the nine months ended September 30, 2017 and 2016, we recorded $533 and $552, respectively, of interest or penalties in income tax expense.

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Business Combinations

9 Months Ended

Sep. 30, 2017

Business Combinations [Abstract]

Business Combinations

Business Combinations

On May 15, 2017, we acquired 100% of the equity interest in Noliac A/S, a privately-held company, for $19.3 million in cash. Noliac A/S is a designer and manufacturer of tape cast and bulk piezoelectric material as well as transducers for use in the telecommunications, industrial, medical, and defense industries. This acquisition will enable us to increase our product base within our ceramics product lines as well as expand our presence in the European market.

The purchase price of $19,121, net of cash acquired of $199, has been preliminarily allocated based on our estimates and assumptions of the approximate fair values of assets acquired and liabilities assumed on the acquisition date. We are still in the process of completing our valuation, and accordingly our estimates and assumptions are subject to change within the measurement period.

	Preliminary Fair Values at May 15, 2017
Current assets	$	2,836
Property, plant and equipment	980
Other assets	108
Goodwill	7,189
Intangible assets	9,142
Fair value of assets acquired	20,255
Less fair value of liabilities acquired	(1,134		)
Net cash paid	$	19,121

On March 11, 2016, we acquired all of the outstanding membership interests in CTG Advanced Materials, LLC (“CTG-AM”), a privately-held company, for $73 million in cash plus 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, we gain technology and proprietary manufacturing methods that expand our offering of piezoelectric materials. This allows us to become the leading large-scale commercial producer of both single crystal materials and traditional piezoelectric ceramics.

The purchase price of $73,063, net of cash acquired of $4, has been allocated to the fair values of assets and liabilities acquired as of March 11, 2016.

The following table summarizes the fair values of the assets acquired and the liabilities assumed at the date of acquisition:

	Fair Values at March 11, 2016
Current assets	$	4,215
Property, plant and equipment	6,173
Other assets	37
Goodwill	27,879
Intangible assets	35,427
Fair value of assets acquired	73,731
Less fair value of liabilities acquired	(668		)
Net cash paid	$	73,063

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.

The following table summarizes the carrying amounts and weighted average lives of the acquired intangible assets:

Intangible Asset Type	Fair Value		Weighted Average Amortization Period (in years)
Developed Technology	$	23,730	15.0
Customer Relationships and Contracts	11,502		14.6
Other	195		0.8
Total	$	35,427	14.8

We incurred $804 in transaction related costs during the year ended December 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 through the current quarter in the prior year that have been included in the Condensed Consolidated Statement of Earnings are as follows:

	For the period March 11, 2016 through September 30, 2016
Net sales	$	7,096
Net earnings	$	256

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Basis of Presentation (Policies)

9 Months Ended

Sep. 30, 2017

Accounting Policies [Abstract]

Basis of Presentation

The accompanying condensed consolidated financial statements have been prepared by CTS Corporation (“CTS” "we", "our", "us" 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, 2016.

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.

Recent Accounting Pronouncements

NOTE 18 — Recent Accounting Pronouncements

ASU 2017-12 "Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities"

In August 2017, the Financial Accounting Standards Board ("FASB") issued Accountings Standards Update ("ASU") No 2017-12 "Derivatives and Hedging (Topic 815): Target Improvements to Accounting for Hedging Activities". This ASU is meant to better align an entity's risk management activities and financial reporting for hedging relationships through changes to both the designation and measurement guidance for qualifying hedging relationships and presentation of the effects of the hedging instrument and the hedged item in the financial statements. This ASU is effective for annual periods beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted in any interim period after issuance. Any changes should be applied to all hedging relationships that exist at the date of adoption by applying a cumulative-effect adjustment related to eliminating the separate measurement of ineffectiveness to accumulated other comprehensive income with a corresponding adjustment to the opening balance of retained earnings as of the beginning of the fiscal year of adoption. Presentation and disclosure guidance is to be applied prospectively. We are still evaluating the impact this ASU may have on our financial statements.

ASU 2017-07 "Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Post-retirement Benefit Cost"

In March 2017, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2017-07 "Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and net Periodic Post-retirement Benefit Cost". This ASU is meant to improve the presentation of net periodic pension and net periodic post-retirement benefits costs. Currently, pension and post-retirement benefit costs are comprised of several components reflecting the different aspects of an employer's financial arrangements and cost of providing benefits to employees. These components are aggregated for reporting, but prior guidance does not prescribe where the net cost should be presented in the income statement or capitalized in assets. This ASU requires disaggregation of the service cost component from other components of net benefit cost and provides explicit guidance on how to present the service cost and other components in the income statement, allowing only the service cost component of net benefit costs to be eligible for capitalization. This ASU is effective for annual periods beginning after December 15, 2017, including interim periods within those periods. Early adoption is permitted as of the beginning of an annual period for which financial statements have not been issued or made available for issuance. These amendments should be applied retrospectively for the presentation of the service cost and other components of net periodic pension and net post-retirement benefit cost in the income statement and prospectively for the capitalization of the service cost and net periodic pension cost and periodic post-retirement benefit in assets. This ASU is not expected to have a material impact on our financial statements because the service cost component of our pension cost is expected to be immaterial to our financial results on a prospective basis.

ASU 2017-04 "Intangibles -Goodwill and Other (Topic 305): Simplifying the Test for Goodwill Impairment"

In January 2017, the FASB issued ASU No. 2017-04 "Intangibles - Goodwill and Other (Topic 305): Simplifying the Test for Goodwill Impairment". This ASU is meant to simplify the subsequent measurement of goodwill for impairment by eliminating the current Step 2 analysis in computing the implied fair value of goodwill. In addition, this ASU requires an entity to consider income tax effects on any tax deductible goodwill on the carrying amount of the reporting unit when measuring an impairment loss, if applicable. Under this ASU, impairment is determined by comparing the reporting unit's fair value to the carrying value. This amendment is effective for fiscal years beginning after December 15, 2019, with early adoption permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. We do not expect this guidance to have an impact on our financial statements.

ASU 2017-01 "Business Combinations (Topic 805): Clarifying the Definition of Business"

In January 2017, the FASB issued ASU No. 2017-01 "Business Combinations (Topic 805): Clarifying the Definition of Business". This ASU is meant to clarify the definition of a business to add guidance when determining when an acquisition or disposal should be accounted for as a sale of assets or business. This ASU provides a more robust framework to use in determining when a set of assets or activities should be classified as a business, providing more consistency in accounting for business or asset acquisitions. This ASU is effective for public companies, for fiscal years beginning after December 15, 2017, including interim periods within those periods. The ASU will be applied prospectively.

ASU 2016-16 "Income Taxes (Topic 740) Intra-Entity Transfers of Assets Other Than Inventory"

In October 2016, the FASB issued ASU No. 2016-16, "Intra-Entity Transfers of Assets Other Than Inventory". This ASU is meant to improve the accounting for the income tax effect of intra-entity transfers of assets other than inventory. Currently, US GAAP prohibits the recognition of current and deferred income taxes for intra-entity asset transfers until the asset is sold to a third party. This ASU will now require companies to recognize the income tax effect of an intra-entity asset transfer (other than inventory) when the transaction occurs. This ASU is effective for public companies, for fiscal years beginning after December 15, 2019 and interim periods within those annual reporting periods. Early adoption is permitted and is to be applied on a modified retrospective basis through a cumulative-effect adjustment to retained earnings as of the beginning of the period of adoption. This guidance is not expected to have a material impact on our consolidated financial statements.

ASU 2016-15 "Statement of Cash Flows (Topic 230) Classification of Certain Cash Receipts and Cash Payments"

In August 2016, the FASB issued ASU No. 2016-15, "Classification of Certain Cash Receipts and Cash Payments". This ASU reduces the diversity in reporting of eight specific cash flow issues due to accounting guidance that is unclear or does not exist. The eight issues relate to certain debt activities, business combination activities, insurance settlements and other various activities. This guidance is effective for fiscal years beginning after December 15, 2017 and interim periods within those fiscal years. Early adoption is permitted and is to be applied retrospectively using a transition method for each period presented. An entity that elects early adoption of the amendment under this ASU must adopt all aspects of the amendment in the same period. This guidance is not expected to have a material impact on our consolidated financial statements.

ASU 2016-02 "Leases (Topic 842)"

In February 2016, the FASB issued ASU 2016-02, "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 on 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 months, 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 expected 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. 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. We have not yet commenced the process for evaluating the impact of this ASU on our financial statements, and therefore it's impact has not yet been determined.

ASU 2014-09, "Revenue from Contracts with Customers (Topic 606)"

In May 2014, the FASB issued ASU 2014-09, "Revenue from Contracts with Customers (Topic 606)".The guidance in this ASU affects any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of nonfinancial assets unless those contracts are within the scope of other standards (for example, insurance contracts or lease contracts). The new revenue recognition guidance more closely aligns U.S. GAAP with International Financial Reporting Standards ("IFRS"). The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services.

To achieve that core principle, an entity should apply the following steps:

Step 1: Identify the contract(s) with a customer.

Step 2: Identify the performance obligations in the contract.

Step 3: Determine the transaction price.

Step 4: Allocate the transaction price to the performance obligations in the contract.

Step 5: Recognize revenue when (or as) the entity satisfies a performance obligation.

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 ASU 2014-9 to annual periods beginning after December 15, 2017 and interim periods within those fiscal years. Early adoption is permitted for annual periods beginning after December 15, 2016 and interim periods within those fiscal years. In addition, four other ASUs have been issued amending and clarifying ASU 2014-09 and must be adopted concurrently.

• ASU 2016-08 "Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net)

• ASU 2016-10 "Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing"

• ASU 2016-12 "Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients"

• ASU 2016-20 "Revenue from Contracts with Customers (Topic 606): Technical Corrections and Improvements"

We have completed our review of customer contracts and agreements for revenue recognized through the second quarter 2017.  We currently have not identified additional performance obligations within our contracts or expect significant changes in revenue from the measurement of variable consideration upon adoption of the new standard.  We expect to adopt the provisions of this standard using the modified retrospective approach, which requires a cumulative effect adjustment to the opening balance of retained earnings on the date of adoption.  We are currently completing the quantitative analysis as of the end of the second quarter to determine the financial impact this new standard will have on our operations.  Based on our preliminary testing, we expect that the standard will not have a material impact on our financial statements. This standard becomes effective on January 1, 2018.

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Accounts Receivable (Tables)

9 Months Ended

Sep. 30, 2017

Receivables [Abstract]

Components of Accounts Receivable

The components of accounts receivable are as follows:

	As of
	September 30,			December 31,
	2017			2016
Accounts receivable, gross	$	65,237		$	62,782
Less: Allowance for doubtful accounts	(376		)	(170		)
Accounts receivable, net	$	64,861		$	62,612

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Inventories (Tables)

9 Months Ended

Sep. 30, 2017

Inventory Disclosure [Abstract]

Summary of Inventories

Inventories consist of the following:

	As of
	September 30,			December 31,
	2017			2016
Finished goods	$	8,255		$	7,513
Work-in-process	12,789			9,596
Raw materials	21,383			17,680
Less: Inventory reserves	(7,119		)	(6,137		)
Inventories, net	$	35,308		$	28,652

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Property, Plant and Equipment (Tables)

9 Months Ended

Sep. 30, 2016

Property, Plant and Equipment [Abstract]

Summary of Property, Plant and Equipment

Property, plant and equipment is comprised of the following:

	As of
	September 30,			December 31,
	2017			2016
Land	$	1,151		$	2,330
Buildings and improvements	65,830			63,621
Machinery and equipment	220,436			213,198
Less: Accumulated depreciation	(203,126		)	(197,038		)
Property, plant and equipment, net	$	84,291		$	82,111
Depreciation expense for the nine months ended September 30, 2017				$	10,201
Depreciation expense for the nine months ended September 30, 2016				$	9,755

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Retirement Plans (Tables) - USD ($)
$ in Thousands

3 Months Ended

9 Months Ended

Sep. 30, 2017

Sep. 30, 2016

Sep. 30, 2017

Sep. 30, 2016

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Net Pension Income or Postretirement Expense

Net pension income for our domestic and foreign plans was as follows:

	Three Months Ended						Nine Months Ended
	September 30,			September 30,			September 30,			September 30,
	2017			2016			2017			2016
Net pension income	$	(492	)	$	(440	)	$	(1,416	)	$	(1,234	)

The components of net pension (income) expense for our domestic and foreign plans include the following: 

	DomesticPension Plans						Foreign Pension Plans
	Three Months Ended						Three Months Ended
	September 30,			September 30,			September 30,			September 30,
	2017			2016			2017			2016
Service cost	$	—		$	21		$	12		$	13
Interest cost	2,068			2,756			8			12
Expected return on plan assets (1)	(4,060		)	(4,744		)	(5		)	(33		)
Amortization of loss	1,446			1,499			39			36
(Income) expense, net	$	(546	)	$	(468	)	$	54		$	28

(1) Expected return on plan assets is net of expected investment expenses and certain administrative expenses.

	DomesticPension Plans						Foreign Pension Plans
	Nine Months Ended						Nine Months Ended
	September 30,			September 30,			September 30,			September 30,
	2017			2016			2017			2016
Service cost	$	—		$	65		$	36		$	38
Interest cost	6,204			8,268			25			34
Expected return on plan assets (1)	(12,181		)	(14,232		)	(15		)	(19		)
Amortization of loss	4,338			4,495			116			105
Other cost due to retirement	61			12			—			—
(Income) expense, net	$	(1,578	)	$	(1,392	)	$	162		$	158

(1) Expected return on plan assets is net of expected investment expenses and certain administrative expenses.

Net post-retirement expense for our other post-retirement plan includes the following components:

	Three Months Ended						Nine Months Ended
	September 30,			September 30,			September 30,			September 30,
	2017			2016			2017			2016
Service cost	$	—		$	—		$	1		$	2
Interest cost	41			52			121			156
Amortization of gain	(25		)	(37		)	(75		)	(112		)
Post-retirement expense	$	16		$	15		$	47		$	46

United States Pension Plan of US Entity [Member]

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Service cost

$ 0

$ 21

$ 0

$ 65

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Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of other intangible assets

Intangible assets consist of the following components:

	As of
	September 30, 2017
	Gross Carrying Amount		Accumulated Amortization			Net Amount
Customer lists/relationships	$	64,323	$	(32,833	)	$	31,490
Patents	10,319		(10,319		)	—
Technology and other intangibles	44,460		(9,498		)	34,962
In process research and development	2,200		—			2,200
Other intangible assets, net	$	121,302	$	(52,650	)	$	68,652
Amortization expense for the three months ended September 30, 2017			$	1,711
Amortization expense for the nine months ended September 30, 2017			$	4,860

	As of
	December 31, 2016
	Gross Carrying Amount		Accumulated Amortization			Net Amount
Customer lists/relationships	$	63,386	$	(30,318	)	$	33,068
Patents	10,319		(10,319		)	—
Technology and other intangibles	36,715		(7,613		)	29,102
In process research and development	2,200		—			2,200
Other intangible assets, net	$	112,620	$	(48,250	)	$	64,370
Amortization expense for the three months ended September 30, 2016			$	1,638
Amortization expense for the nine months ended September 30, 2016			$	4,254

Summary of amortization expense remaining for other intangible assets

Amortization expense remaining for other intangible assets is as follows: 

	Amortization expense
2017	$	1,708
2018	6,763
2019	6,754
2020	6,624
2021	6,467
Thereafter	40,336
Total amortization expense	$	68,652

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Costs Associated with Exit and Restructuring Activities (Tables)

9 Months Ended

Sep. 30, 2017

Restructuring Reserve Activity

The following table displays the restructuring liability activity for all plans for the nine months ended September 30, 2017: 

Combined Plans
Restructuring liability at January 1, 2017	$	2,162
Restructuring charges	2,942
Cost paid	(3,162		)
Other activity (1)	65
Restructuring liability at September 30, 2017	$	2,007

(1) Other activity includes the effects of currency translation and other charges that do not flow through restructuring expense.

June 2016 Plan

Restructuring and Restructuring Related Charges of Actual Costs

Total restructuring charges, all related to the June 2016 Plan described below, were as follows:

	Three Months Ended
	September 30, 2017		September 30, 2016
Restructuring charges	$	1,435	$	1,969

	Nine Months Ended
	September 30, 2017		September 30, 2016
Restructuring charges	$	2,942	$	2,175

Schedule of Planned and Actual Costs Incurred to Date

The following table displays the planned restructuring charges associated with the June 2016 Plan as well as a summary of the actual costs incurred through September 30, 2017:

			Actual costs
	Planned		incurred through
June 2016 Plan	Costs		September 30, 2017
Workforce reduction	$	3,075	$	2,895
Building and equipment relocation	9,025		2,584
Other charges	1,300		511
Total restructuring charges	$	13,400	$	5,990

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Accrued Liabilities (Tables)

9 Months Ended

Sep. 30, 2017

Other Liabilities Disclosure [Abstract]

Components of Accrued Liabilities

The components of accrued liabilities are as follows: 

	As of
	September 30,		December 31,
	2017		2016
Accrued product related costs	$	4,681	$	5,556
Accrued income taxes	10,157		9,826
Accrued property and other taxes	2,435		1,917
Accrued professional fees	1,687		1,633
Dividends payable	1,317		1,309
Remediation reserves	17,633		18,176
Other accrued liabilities	6,081		7,291
Total accrued liabilities	$	43,991	$	45,708

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Debt (Tables)

9 Months Ended

Sep. 30, 2017

Debt Disclosure [Abstract]

Summary of Long-Term Debt

Long-term debt was comprised of the following:

	As of
	September 30,			December 31,
	2017			2016
Revolving credit facility due in 2020	$	82,300		$	89,100
Weighted average interest rate	2.3		%	1.9		%
Amount available	$	215,635		$	208,735
Total credit facility	$	300,000		$	300,000
Standby letters of credit	$	2,065		$	2,165
Commitment fee percentage per annum	0.25		%	0.25		%

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Derivative Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2017

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 September 30, 2017, are shown in the following table:

	As of
	September 30,		December 31,
	2017		2016
Foreign currency hedges reported in Accrued liabilities	$	—	$	601
Foreign currency hedges reported in Other current assets	$	260	$	—
Interest rate swaps reported in Other current assets	$	156	$	2
Interest rate swaps reported in Other assets	$	494	$	751

Derivative Instruments, Gain (Loss)

The effect of derivative instruments on the Condensed Consolidated Statements of Earnings is as follows:

	Three Months Ended						Nine Months Ended
	September 30,			September 30,			September 30,			September 30,
	2017			2016			2017			2016
Foreign Exchange Contracts:
Loss recognized in Net Sales	$	(194	)	$	(35	)	$	(253	)	$	(125	)
Gain recognized in Cost of Goods Sold	268			51			182			139
Gain recognized in Selling, General and Administrative expense	21			—			31			10
Loss recognized in Other (expenses) income	(2		)	(5		)	(11		)	(9		)
Interest Rate Swaps:
Benefit recorded in Interest Expense	$	12		$	158		$	12		$	471
Total gain / (loss)	$	105		$	169		$	(39	)	$	486

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, 2016	$	(768	)	$	—
Settled in cash	—			54
Included in earnings	928			(18		)
Included in other comprehensive earnings	593			(637		)
Balance at December 31, 2016	$	753		$	(601	)
Settled in cash	(6		)	(75		)
Included in earnings	(6		)	(51		)
Included in other comprehensive earnings	(91		)	987
Balance at September 30, 2017	$	650		$	260

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Accumulated Other Comprehensive (Loss) Income (Tables)

9 Months Ended

Sep. 30, 2017

Equity [Abstract]

Schedule of Accumulated Other Comprehensive (Loss) Income

The components of accumulated other comprehensive (loss) income for the three months ended September 30, 2017, are as follows:

							Gain (Loss)
	As of			Gain (Loss)			Reclassified			As of
	June 30,			Recognized			from AOCI			September 30,
	2017			in OCI			to Income			2017
Changes in fair market value of hedges:
Gross	$	1,070		$	37		$	(108	)	$	999
Income tax (benefit) expense	(388		)	(14		)	40			(362		)
Net	682			23			(68		)	637
Changes in unrealized pension cost:
Gross	(148,856		)	—			1,458			(147,398		)
Income tax expense (benefit)	59,668			—			(522		)	59,146
Net	(89,188		)	—			936			(88,252		)
Cumulative translation adjustment:
Gross	(2,132		)	161			—			(1,971		)
Income tax expense	98			3			—			101
Net	(2,034		)	164			—			(1,870		)
Total accumulated other comprehensive (loss) income	$	(90,540	)	$	187		$	868		$	(89,485	)

The components of accumulated other comprehensive (loss) income for the three months ended September 30, 2016, are as follows:

							Gain (Loss)
	As of			Gain (Loss)			Reclassified			As of
	June 30,			Recognized			from AOCI			September 30,
	2016			in OCI			to Income			2016
Changes in fair market value of hedges:
Gross	$	(403	)	$	(643	)	$	221		$	(825	)
Income tax expense (benefit)	151			242			(83		)	310
Net	(252		)	(401		)	138			(515		)
Changes in unrealized pension cost:
Gross	(158,763		)	—			1,437			(157,326		)
Income tax expense (benefit)	63,260			—			(539		)	62,721
Net	(95,503		)	—			898			(94,605		)
Cumulative translation adjustment:
Gross	(1,995		)	(161		)	—			(2,156		)
Income tax expense (benefit)	101			(3		)	—			98
Net	(1,894		)	(164		)	—			(2,058		)
Total accumulated other comprehensive (loss) income	$	(97,649	)	$	(565	)	$	1,036		$	(97,178	)

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Shareholders' Equity (Tables)

9 Months Ended

Sep. 30, 2017

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
	September 30,	December 31,
	2017	2016
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	56,631,072	56,456,516
Shares outstanding	32,937,050	32,762,494
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:

	Nine Months Ended
	September 30,	September 30,
	2017	2016
Balance at the beginning of the year	32,762,494	32,548,477
Repurchases	—	—
Shares issued upon exercise of stock options	—	—
Restricted share issuances	174,556	211,032
Balance at the end of the period	32,937,050	32,759,509

Certain potentially dilutive restricted stock units are excluded from diluted earning per share because they are anti-dilutive. The number of awards that were anti-dilutive at September 30, 2017 and September 30, 2016 were 10,094 and 2,019, respectively.

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Equity-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2017

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 stock-based compensation plans:

	Three Months Ended				Nine Months Ended
	September 30,		September 30,		September 30,		September 30,
	2017		2016		2017		2016
Service-Based RSUs	$	415	$	523	$	1,430	$	1,471
Performance-Based RSUs	360		235		1,040		267
Cash-settled RSUs	52		34		44		21
Total	$	827	$	792	$	2,514	$	1,759
Income tax benefit	311		298		945		661
Net	$	516	$	494	$	1,569	$	1,098

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
	September 30, 2017		period
Service-Based RSUs	$	865
Performance-Based RSUs	2,552
Total	$	3,417	1.68

Summary of Status of Equity-Based Compensation Plans

The following table summarizes the status of these plans as of September 30, 2017:

	2014 Plan	2009 Plan	2004 Plan	Directors' Plan
Awards originally available	1,500,000	3,400,000	6,500,000	N/A
Performance-based options outstanding	295,000	—	—	—
Maximum potential RSU and cash settled awards outstanding	705,925	122,600	57,391	9,620
Maximum potential awards outstanding	1,000,925	122,600	57,391	9,620
RSUs and cash settled awards vested and released	173,554	—	—	—
Awards available for grant	325,521	—	—	—

Summary of Service-Based Restricted Stock Units

summarizes the service-based RSU activity as of and for the nine months ended September 30, 2017: 

	Units		Weighted Average Grant Date Fair Value
Outstanding at January 1, 2017	554,478		$	13.37
Granted	34,040		22.98
Vested and released	(199,251	)	13.79
Forfeited	(9,924	)	16.69
Outstanding at September 30, 2017	379,343		$	13.92
Releasable at September 30, 2017	226,811		$	11.38

Schedule of Components of Performance-Based RSU's

The following table summarizes the performance and market-based RSU activity as of and for the nine months ended September 30, 2017:

	Units		Weighted Average Grant Date Fair Value
Outstanding at January 1, 2017	201,900		$	16.48
Granted	123,919		23.83
Attained by performance	15,285		21.66
Released	(43,275	)	21.66
Forfeited	(26,524	)	22.56
Outstanding at September 30, 2017	271,305		$	18.77
Releasable at September 30, 2017	—		$	—

The following table summarizes each grant of performance awards outstanding at September 30, 2017.

Description	Grant Date	Vesting Year	Vesting Dependency	Target Units Outstanding	Maximum Number of Units to be Granted
2015 - 2017 Performance RSUs	February 5, 2015	2017	35% RTSR, 35% sales growth, 30% cash flow	62,000	124,000
2016 - 2018 Performance RSUs	February 16, 2016	2018	35% RTSR, 35% sales growth, 30% cash flow	92,840	185,680
2017 - 2019 Performance RSUs	February 9, 2017	2019	35% RTSR, 35% sales growth, 30% cash flow	71,796	143,592
2017 - 2019 Performance RSUs	February 9, 2017	2018 - 2020	Operating Income	40,669	40,669
Single Crystal Performance RSUs	March 31, 2016	2018	Various	4,000	8,000

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Fair Value Measurement (Tables)

9 Months Ended

Sep. 30, 2017

Fair Value Disclosures [Abstract]

Summary of Financial Liability Measured at Fair Value on a Recurring Basis

The table below summarizes our financial assets that were measured at fair value on a recurring basis at September 30, 2017:

			Quoted
			Prices
	Asset		in Active		Significant
	Carrying		Markets for		Other		Significant
	Value at		Identical		Observable		Unobservable
	September 30,		Instruments		Inputs		Inputs
	2017		(Level 1)		(Level 2)		(Level 3)
Interest rate swaps	$	650	$	—	$	650	$	—
Foreign currency hedges	$	260	$	—	$	260	$	—

The table below summarizes the financial assets (liabilities) that were measured at fair value on a recurring basis as of December 31, 2016:

				Quoted
	Asset			Prices
	(Liability)			in Active		Significant
	Carrying			Markets for		Other			Significant
	Value at			Identical		Observable			Unobservable
	December 31,			Instruments		Inputs			Inputs
	2016			(Level 1)		(Level 2)			(Level 3)
Interest rate swaps	$	753		$	—	$	753		$	—
Foreign currency hedges	$	(601	)	$	—	$	(601	)	$	—

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						Nine Months Ended
	September 30,			September 30,			September 30,			September 30,
	2017			2016			2017			2016
Foreign Exchange Contracts:
Loss recognized in Net Sales	$	(194	)	$	(35	)	$	(253	)	$	(125	)
Gain recognized in Cost of Goods Sold	268			51			182			139
Gain recognized in Selling, General and Administrative expense	21			—			31			10
Loss recognized in Other (expenses) income	(2		)	(5		)	(11		)	(9		)
Interest Rate Swaps:
Benefit recorded in Interest Expense	$	12		$	158		$	12		$	471
Total gain / (loss)	$	105		$	169		$	(39	)	$	486

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, 2016	$	(768	)	$	—
Settled in cash	—			54
Included in earnings	928			(18		)
Included in other comprehensive earnings	593			(637		)
Balance at December 31, 2016	$	753		$	(601	)
Settled in cash	(6		)	(75		)
Included in earnings	(6		)	(51		)
Included in other comprehensive earnings	(91		)	987
Balance at September 30, 2017	$	650		$	260

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Income Taxes (Tables)

9 Months Ended

Sep. 30, 2017

Income Tax Disclosure [Abstract]

Reconciliation of Effective Income Taxes Rate

The effective tax rates for the three and nine-month periods ended September 30, 2017 and 2016 were:

	Three Months Ended				Nine Months Ended
	September 30,		September 30,		September 30,		September 30,
	2017		2016		2017		2016
Effective tax rate	31.1	%	68.3	%	30.0	%	43.2	%

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Business Combinations (Tables)

9 Months Ended

Sep. 30, 2017

Business Combinations [Abstract]

Schedule of Business Acquisitions, by Acquisition

The following table summarizes the fair values of the assets acquired and the liabilities assumed at the date of acquisition:

	Fair Values at March 11, 2016
Current assets	$	4,215
Property, plant and equipment	6,173
Other assets	37
Goodwill	27,879
Intangible assets	35,427
Fair value of assets acquired	73,731
Less fair value of liabilities acquired	(668		)
Net cash paid	$	73,063

The amount of net sales and net loss from CTG-AM since the acquisition date through the current quarter in the prior year that have been included in the Condensed Consolidated Statement of Earnings are as follows:

	For the period March 11, 2016 through September 30, 2016
Net sales	$	7,096
Net earnings	$	256

Schedule of Finite-Lived Intangible Assets Acquired

The following table summarizes the carrying amounts and weighted average lives of the acquired intangible assets:

Intangible Asset Type	Fair Value		Weighted Average Amortization Period (in years)
Developed Technology	$	23,730	15.0
Customer Relationships and Contracts	11,502		14.6
Other	195		0.8
Total	$	35,427	14.8

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Basis of Presentation (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Consolidated Balance Sheet Line Item
Other current assets	$ 13,453	$ 10,638
Deferred income taxes	37,850	45,839
Accrued liabilities	(43,991)	(45,708)
Post retirement obligations	(6,823)	(7,006)
Other long-term obligations	$ (6,709)	$ (5,580)

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Accounts Receivable - Components of Accounts Receivable (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Accounts Receivable
Accounts receivable, gross	$ 65,237	$ 62,782
Less: Allowance for doubtful accounts	(376)	(170)
Accounts receivable, net	$ 64,861	$ 62,612

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Inventories - Summary of Inventories (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Inventories
Finished goods	$ 8,255	$ 7,513
Work-in-process	12,789	9,596
Raw materials	21,383	17,680
Less: Inventory reserves	(7,119)	(6,137)
Inventories, net	$ 35,308	$ 28,652

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Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Property, plant and equipment
Less: Accumulated depreciation	$ (203,126)		$ (197,038)
Property, plant and equipment, net	84,291		82,111
Depreciation	10,201	$ 9,755
Land
Property, plant and equipment
Property, plant and equipment gross	1,151		2,330
Buildings and improvements
Property, plant and equipment
Property, plant and equipment gross	65,830		63,621
Machinery and equipment
Property, plant and equipment
Property, plant and equipment gross	$ 220,436		$ 213,198

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Retirement Plans - Net Pension Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Pension Plans
Defined Benefit Plan Disclosure
Net pension income	$ (492)	$ (440)	$ (1,416)	$ (1,234)

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Retirement Plans - Net Pension Income Domestic and Foreign (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Pension Plans
Net pension expense (income)
(Income) expense, net	$ (492)	$ (440)	$ (1,416)	$ (1,234)
United States Pension Plan of US Entity [Member]
Net pension expense (income)
Service cost	0	21	0	65
Interest cost	2,068	2,756	6,204	8,268
Defined Benefit Plan, Expected Return on Plan Assets, Net of Expenses	(4,060)	(4,744)	(12,181)	(14,232)
Amortization of loss	1,446	1,499	4,338	4,495
Other cost due to retirement			61	12
(Income) expense, net	(546)	(468)	(1,578)	(1,392)
Foreign Pension Plans
Net pension expense (income)
Service cost	12	13	36	38
Interest cost	8	12	25	34
Defined Benefit Plan, Expected Return on Plan Assets, Net of Expenses	(5)	(33)	(15)	(19)
Amortization of loss	39	36	116	105
Other cost due to retirement			0	0
(Income) expense, net	$ 54	$ 28	$ 162	$ 158

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Retirement Plans - Other Postretirement Benefit Plan (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Other Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure
Service cost	$ 0	$ 0	$ 1	$ 2
Interest cost	41	52	121	156
Amortization of gain	(25)	(37)	(75)	(112)
(Income) expense, net	16	15	47	46
Foreign Pension Plans
Defined Benefit Plan Disclosure
Service cost	12	13	36	38
Interest cost	8	12	25	34
Amortization of gain	39	36	116	105
(Income) expense, net	$ 54	$ 28	$ 162	$ 158

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Other Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Dec. 31, 2016
Other Intangible Assets
Gross Carrying Amount	$ 121,302		$ 121,302	$ 112,620
Accumulated Amortization	(52,650)		(52,650)	(48,250)
Total amortization expense	68,652		68,652	64,370
Amortization expense	1,711	$ 1,638	4,860	4,254
Customer lists/relationships
Other Intangible Assets
Gross Carrying Amount	64,323		64,323	63,386
Accumulated Amortization	(32,833)		(32,833)	(30,318)
Total amortization expense	31,490		31,490	33,068
Patents
Other Intangible Assets
Gross Carrying Amount	10,319		10,319	10,319
Accumulated Amortization	(10,319)		(10,319)	(10,319)
Total amortization expense	0		0	0
Technology and other intangibles
Other Intangible Assets
Gross Carrying Amount	44,460		44,460	36,715
Accumulated Amortization	(9,498)		(9,498)	(7,613)
Total amortization expense	34,962		34,962	29,102
In process research and development
Other Intangible Assets
Gross Carrying Amount				2,200
Total amortization expense	2,200		2,200	$ 2,200
Indefinite-Lived Intangible Assets (Excluding Goodwill)	$ 2,200		$ 2,200

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Other Intangible Assets - Summary of Amortization Expense (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule
2016	$ 1,708
2017	6,763
2018	6,754
2019	6,624
2020	6,467
Thereafter	40,336
Total amortization expense	$ 68,652	$ 64,370

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Costs Associated with Exit and Restructuring Activities - Summary (Details) - Operating Earnings - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
June 2013 Plan, April 2014 Plan and June 2016 Plan
Total restructuring, impairment and restructuring related charges
Restructuring and impairment charges	$ 1,435		$ 2,942
June 2013 Plan, April 2014 Plan and June 2016
Total restructuring, impairment and restructuring related charges
Restructuring and impairment charges		$ 1,969		$ 2,175

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Costs Associated with Exit and Restructuring Activities Costs Associated with Exit and Restructuring Activities - June 2016 Plan (Details) - June 2016 Plan $ in Thousands	9 Months Ended
	Sep. 30, 2017 USD ($) employee	Dec. 31, 2016 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Number of Positions Eliminated | employee	230
Actual costs incurred	$ 2,584
Total restructuring, impairment and restructuring related charges
Restructuring Reserve	1,546	$ 1,739
Operating Earnings
Restructuring Cost and Reserve [Line Items]
Planned Costs	13,400
Actual costs incurred	5,990
Equipment relocation
Restructuring Cost and Reserve [Line Items]
Planned Costs	9,025
Other charges
Restructuring Cost and Reserve [Line Items]
Planned Costs	1,300
Other charges | Operating Earnings
Restructuring Cost and Reserve [Line Items]
Actual costs incurred	511
Workforce reduction
Restructuring Cost and Reserve [Line Items]
Planned Costs	3,075
Workforce reduction | Operating Earnings
Restructuring Cost and Reserve [Line Items]
Actual costs incurred	2,895
Minimum
Restructuring Cost and Reserve [Line Items]
Planned Costs	$ 13,400

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Costs Associated with Exit and Restructuring Activities - April 2014 Plan (Details) - April 2014 Plan $ in Thousands	12 Months Ended
	Dec. 31, 2015 employee	Sep. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve | $		$ 461	$ 423
Restructuring charges
Elimination of workforce | employee	120

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Costs Associated with Exit and Restructuring Activities - Restructuring Reserve Activity (Details) - June 2013 Plan, April 2014 Plan and June 2016 Plan $ in Thousands	9 Months Ended
	Sep. 30, 2017 USD ($)
Restructuring reserve activity
Restructuring liability at beginning	$ 2,162
Restructuring and restructuring-related charges	2,942
Cost paid	(3,162)
Restructuring liability at ending	2,007
Restructuring Reserve, Translation and Other Adjustment	$ 65

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Accrued Liabilities - Components of Accrued Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Dec. 31, 2015
Accrued Liabilities
Accrued product related costs	$ 4,681	$ 5,556
Accrued income taxes	10,157	9,826
Accrued property and other taxes	2,435	1,917
Accrued professional fees	1,687	1,633
Dividends payable	1,317	1,309
Remediation reserves	17,633	18,176	$ 20,603
Other accrued liabilities	6,081	7,291
Total accrued liabilities	$ 43,991	$ 45,708

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Contingencies Remediation Liability (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016	Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Cash Reimbursed for Environmental Liabilities	$ 811
Loss Contingencies [Line Items]
Accrued Environmental Loss Contingencies, Current	17,633	$ 18,176	$ 20,603
Accrual for Environmental Loss Contingencies, Charges to Expense for New Losses	299	556
Accrual for Environmental Loss Contingencies Payments, Net of Reimbursements	$ (842)	$ 2,983

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Debt - Long-Term Debt (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016	May 23, 2016	May 22, 2016	Aug. 10, 2015
Long-term debt
Revolving credit facility	$ 82,300,000	$ 89,100,000
Line of Credit | Revolving Credit Facility Due 2020
Long-term debt
Revolving credit facility	$ 82,300,000	$ 89,100,000
Weighted-average interest rate	2.30%	1.90%
Amount available	$ 215,635,000	$ 208,735,000
Total credit facility	300,000,000	300,000,000	$ 300,000,000	$ 200,000,000	$ 200,000,000
Standby letters of credit	$ 2,065,000	$ 2,165,000
Commitment fee percentage per annum	0.25%	0.25%

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Debt - Narratives (Details) - USD ($)		3 Months Ended		9 Months Ended		12 Months Ended
	Aug. 10, 2015	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016	May 23, 2016	May 22, 2016
Line of Credit Facility
Debt amortization expense		$ 46,000	$ 46,000	$ 0	$ 0
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	$ 300,000,000		$ 300,000,000		$ 300,000,000	$ 300,000,000	$ 200,000,000
Line of credit facility contingent increase to maximum borrowing capacity							$ 100,000,000
Commitment fee percentage per annum				0.25%		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%

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Derivative Financial Instruments - Narratives (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($) instrument	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2012 USD ($) instrument	Jun. 24, 2012 USD ($) instrument
Derivative
Unrealized Gain (Loss) on Foreign Currency Derivatives, Net, before Tax	$ 350	$ 0
Foreign exchange derivative
Derivative
Derivative Asset	616
Derivative Liability	356
Cash Flow Hedge | Designated As Hedging | Foreign currency forward contracts
Derivative
Foreign currency cash flow hedge gain to be reclassified during next 12 months	350
Derivative, notional amount	29,500
Derivative Asset	260
Derivative Liability			$ 601	$ 0
Cash Flow Hedge | Designated As Hedging | Interest rate swap
Derivative
Derivative, notional amount					$ 25,000	$ 50,000
Number of derivative instruments held | instrument		3			4	4
Interest rate cash flow hedge gain (loss) to be reclassified during next 12 months	156
Derivative Liability	$ (650)		$ (753)	$ 768

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Derivative Financial Instruments - Fair Value of Derivative Instruments (Details) - Cash Flow Hedge - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Dec. 31, 2015
Interest rate swap | Other Current Assets [Member]
Derivative Liability
Derivative Asset	$ 156	$ 2
Interest rate swap | Other Noncurrent Assets [Member]
Derivative Liability
Derivative Asset	494	751
Foreign currency hedges | Other Current Liabilities [Member]
Derivative Liability
Derivative Liability	0	601
Foreign currency hedges | Other Current Assets [Member]
Derivative Liability
Derivative Asset	260
Designated as Hedging Instrument [Member] | Interest rate swap
Derivative Liability
Derivative Liability	(650)	(753)	$ 768
Designated as Hedging Instrument [Member] | Foreign currency hedges
Derivatives, Fair Value [Line Items]
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	350
Derivative Liability
Derivative Liability		$ 601	$ 0
Derivative Asset	$ 260

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Derivative Financial Instruments - Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net	$ 105	$ 169	$ (39)	$ 486
Foreign exchange derivative | Net sales | Designated As Hedging
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net	(194)	(35)	(253)	(125)
Foreign exchange derivative | Cost of goods sold | Designated As Hedging
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net	268	51	182	139
Foreign exchange derivative | Selling, general and administrative expenses | Designated As Hedging
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net	21	0	31	10
Foreign exchange derivative | Other income and expenses | Designated As Hedging
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net	(2)	(5)	(11)	(9)
Interest rate swap | Interest expense | Designated As Hedging
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net	$ 12	$ 158	$ 12	$ 471

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Accumulated Other Comprehensive (Loss) Income - Summary of Components of Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Foreign currency transaction loss
Foreign currency transaction gain (loss)	$ 960	$ 165	$ 2,517	$ 1,656
AOCI Attributable to Parent, Net of Tax
Total accumulated other comprehensive (loss) income, beginning of period			(93,194)
Total accumulated other comprehensive (loss) income, end of period	(89,485)		(89,485)
Accumulated other comprehensive (loss) income
AOCI Attributable to Parent, Net of Tax
Total accumulated other comprehensive (loss) income, beginning of period	(90,540)	(97,649)	(93,194)	(99,005)
Gain (Loss) recognized in OCI, Net	187	(565)	997	(1,354)
Gain (Loss) reclassified from AOCI to income, Net	868	1,036	2,712	3,181
Total accumulated other comprehensive (loss) income, end of period	(89,485)	(97,178)	(89,485)	(97,178)
Changes in fair market value of hedges
Changes in AOCI, Gross
Gross, beginning of the period	1,070	(403)	116	(768)
Other Comprehensive Income (Loss), before Reclassifications, before Tax	37	(643)	856	(742)
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	(108)	221	27	685
Gross, ending balance	999	(825)	999	(825)
Changes in AOCI, Income tax (benefit)
Income tax (benefit), beginning of period	(388)	151	(42)	289
Income tax (benefit), Gain (Loss) recognized in OCI	(14)	242	(311)	278
Income tax (benefit), Gain (Loss) reclassified from AOCI to income	40	(83)	(9)	(257)
Income tax (benefit), ending of period	(362)	310	(362)	310
AOCI Attributable to Parent, Net of Tax
Total accumulated other comprehensive (loss) income, beginning of period	682	(252)	74	(479)
Gain (Loss) recognized in OCI, Net	23	(401)	545	(464)
Gain (Loss) reclassified from AOCI to income, Net	(68)	138	18	428
Total accumulated other comprehensive (loss) income, end of period	637	(515)	637	(515)
Changes in unrealized pension cost
Changes in AOCI, Gross
Gross, beginning of the period	(148,856)	(158,763)	(151,618)	(161,719)
Other Comprehensive Income (Loss), before Reclassifications, before Tax	0	0	0	0
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	1,458	1,437	4,220	4,393
Gross, ending balance	(147,398)	(157,326)	(147,398)	(157,326)
Changes in AOCI, Income tax (benefit)
Income tax (benefit), beginning of period	59,668	63,260	60,672	64,361
Income tax (benefit), Gain (Loss) recognized in OCI	0	0	0	0
Income tax (benefit), Gain (Loss) reclassified from AOCI to income	(522)	(539)	(1,526)	(1,640)
Income tax (benefit), ending of period	59,146	62,721	59,146	62,721
AOCI Attributable to Parent, Net of Tax
Total accumulated other comprehensive (loss) income, beginning of period	(89,188)	(95,503)	(90,946)	(97,358)
Gain (Loss) recognized in OCI, Net	0	0	0	0
Gain (Loss) reclassified from AOCI to income, Net	936	898	2,694	2,753
Total accumulated other comprehensive (loss) income, end of period	(88,252)	(94,605)	(88,252)	(94,605)
Cumulative translation adjustment
Changes in AOCI, Gross
Gross, beginning of the period	(2,132)	(1,995)	(2,414)	(1,279)
Other Comprehensive Income (Loss), before Reclassifications, before Tax	161	(161)	443	(877)
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	0	0	0	0
Gross, ending balance	(1,971)	(2,156)	(1,971)	(2,156)
Changes in AOCI, Income tax (benefit)
Income tax (benefit), beginning of period	98	101	92	111
Income tax (benefit), Gain (Loss) recognized in OCI	3	(3)	9	(13)
Income tax (benefit), Gain (Loss) reclassified from AOCI to income	0	0	0	0
Income tax (benefit), ending of period	101	98	101	98
AOCI Attributable to Parent, Net of Tax
Total accumulated other comprehensive (loss) income, beginning of period	(2,034)	(1,894)	(2,322)	(1,168)
Gain (Loss) recognized in OCI, Net	164	(164)	452	(890)
Gain (Loss) reclassified from AOCI to income, Net	0	0	0	0
Total accumulated other comprehensive (loss) income, end of period	$ (1,870)	$ (2,058)	$ (1,870)	$ (2,058)

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Shareholders' Equity - Summary of Share Count and Par Value Data Related to Shareholders' Equity (Details) - $ / shares	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2015
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	56,631,072	56,456,516
Common stock, shares outstanding	32,937,050	32,762,494	32,759,509	32,548,477
Treasury stock
Treasury stock, shares held	23,694,022	23,694,022

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Shareholders' Equity - Additional Information (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Stockholders' Equity Note [Abstract]
Common stock repurchased, shares	0	0
Common stock repurchased, value			$ 7,446
Shares are available for future issuances	$ 17,554
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures	0	0
Antidilutive securities excluded from computation of earnings per share (shares)	10,094	2,019

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Shareholders' Equity - Summary of Common Shares Outstanding (Details) - shares	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Roll forward of common shares outstanding
Balance at the beginning of the year	32,762,494	32,548,477
Restricted share issuances	174,556	211,032
Balance at the end of the period	32,937,050	32,759,509

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Equity-Based Compensation - Summary of Equity-Based Compensation Expense (Details) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($) plan $ / shares shares	Sep. 30, 2016 USD ($) shares	Sep. 30, 2017 USD ($) plan $ / shares shares	Sep. 30, 2016 USD ($) shares	Dec. 31, 2016 $ / shares shares
Share-based Compensation
Number of Equity-Based Compensation Plans | plan	4		4
Restricted stock units			$ 2,514	$ 1,759
Allocated Share-based Compensation Expense, Net of Tax	$ 516	$ 494	1,569	1,098
Service-Based RSUs
Share-based Compensation
Restricted stock units	415	523	1,430	1,471
Performance and market-based RSU's
Share-based Compensation
Restricted stock units			$ 1,040
Restricted stock expense (reversal)	$ 360	$ 235		$ 267
Cash Settled Awards
Share-based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number | shares	14,252	12,074	14,252	12,074
Restricted stock expense (reversal)	$ 52	$ 34	$ 44	$ 21
RSUs
Share-based Compensation
Restricted stock units	827	792	2,514	1,759
Income tax benefit	$ 311	$ 298	$ 945	$ 661
Officers, key employees, and non-employee directors | Service-Based RSUs
Share-based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Forfeitures | shares			9,924
Releasable - weighted average fair value | $ / shares	$ 11.38		$ 11.38
Granted - shares | shares			34,040
Forfeited - weighted average fair value | $ / shares			$ 16.69
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Released Number | shares			199,251
Granted - weighted average fair value | $ / shares			$ 22.98
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value | $ / shares	$ 13.92		13.92		$ 13.37
Converted - weighted average fair value | $ / shares			$ 13.79
Releasable - shares | shares	226,811		226,811
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number | shares	379,343		379,343		554,478

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Equity-Based Compensation - Summary of Equity-Based Compensation Expense related to Non-Vested RSUs (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2017 USD ($)
Service-Based RSUs
Share-based Compensation
Unrecognized compensation cost	$ 865
Performance and market-based RSU's
Share-based Compensation
Unrecognized compensation cost	2,552
RSUs
Share-based Compensation
Unrecognized compensation cost	$ 3,417
Weighted average period	1 year 8 months 5 days

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Equity-Based Compensation - Summary of Status of Equity-Based Compensation Plans (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Summary of Status of Equity-Based Compensation Plans
Other accrued liabilities	$ 6,081	$ 7,291
2014 Plan
Summary of Status of Equity-Based Compensation Plans
Awards originally available	1,500,000
Shares outstanding	705,925
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number	1,000,925
Vested and released - shares	173,554
Awards available for grant	325,521
2009 Plan
Summary of Status of Equity-Based Compensation Plans
Awards originally available	3,400,000
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number	122,600
Awards available for grant	0
2004 Plan
Summary of Status of Equity-Based Compensation Plans
Awards originally available	6,500,000
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number	57,391
Awards available for grant	0
Directors' Plan
Summary of Status of Equity-Based Compensation Plans
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number	9,620
Awards available for grant	0
RSUs | 2009 Plan
Summary of Status of Equity-Based Compensation Plans
Shares outstanding	122,600
Vested and released - shares	0
RSUs | 2004 Plan
Summary of Status of Equity-Based Compensation Plans
Shares outstanding	57,391
RSUs | Directors' Plan
Summary of Status of Equity-Based Compensation Plans
Shares outstanding	9,620
Performance-Based Stock Options | 2014 Plan
Summary of Status of Equity-Based Compensation Plans
Awards originally available	350,000
Shares outstanding	295,000
Stock options outstanding	295,000
Cash Settled Awards
Summary of Status of Equity-Based Compensation Plans
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number	14,252		12,074
Other accrued liabilities	$ 214		$ 115
Officers, key employees, and non-employee directors | Service-Based RSUs
Share-based Compensation
Releasable - weighted average fair value	$ 11.38
Summary of Status of Equity-Based Compensation Plans
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number	379,343	554,478

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Equity-Based Compensation - Performance-Based Stock Options (Details) - USD ($)		9 Months Ended
	May 26, 2015	Sep. 30, 2017
Performance and Market-based Restricted Stock Units
Share-based Compensation
Attained by performance - weighted average fair value		$ 21.66
2014 Plan
Share-based Compensation
Awards granted (in shares)		1,500,000
2014 Plan | Performance-Based Stock Options
Share-based Compensation
Awards granted (in shares)		350,000
Grant date fair value (in dollars per share)	$ 18.37
Option term (in years)	5 years
Revenue threshold for award	$ 600,000

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Equity-Based Compensation - Summary of Service-Based Restricted Stock Units (Details) - Officers, key employees, and non-employee directors - Service-Based RSUs	9 Months Ended
	Sep. 30, 2017 $ / shares shares
Units
Outstanding at beginning of year - shares | shares	554,478
Granted - shares | shares	34,040
Released - shares | shares	(199,251)
Forfeited - shares | shares	(9,924)
Outstanding at end of year - shares | shares	379,343
Releasable - shares | shares	226,811
Weighted Average Grant Date Fair Value
Beginning of year - weighted average fair value | $ / shares	$ 13.37
Granted - weighted average fair value | $ / shares	22.98
Converted - weighted average fair value | $ / shares	13.79
Forfeited - weighted average fair value | $ / shares	16.69
End of year - weighted average fair value | $ / shares	13.92
Releasable - weighted average fair value | $ / shares	$ 11.38

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Equity-Based Compensation - Directors Plan (Details)	9 Months Ended
	Sep. 30, 2017 shares
Directors' Plan
Units
Outstanding at end of year - shares	9,620

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Equity-Based Compensation - Schedule of Performance-Based RSUs (Details) - shares	Sep. 30, 2017	Feb. 09, 2017	Sep. 30, 2016	Feb. 16, 2016	Feb. 05, 2015
Performance and Market-based Restricted Stock Units
Share-based Compensation
Maximum potential units outstanding at June 30, 2016 - shares	0
Performance-Based RSUs
Share-based Compensation
Target Units Outstanding		71,796	4,000	92,840	62,000
Shared Based Compensation Maximum Potential Awards		143,592	8,000	185,680	124,000
Performance Shares [Member]
Share-based Compensation
Target Units Outstanding		40,669
Shared Based Compensation Maximum Potential Awards		40,669

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Equity-Based Compensation Equity-Based Compensation - Performance and Market Based RSUs (Details) - Performance and Market-based Restricted Stock Units	9 Months Ended
	Sep. 30, 2017 $ / shares shares
Units
Outstanding at beginning of year - shares | shares	201,900
Granted - shares | shares	123,919
Attained by performance - shares | shares	15,285
Vested and released - shares | shares	(43,275)
Forfeited - shares | shares	(26,524)
Outstanding at end of year - shares | shares	271,305
Maximum potential units outstanding at June 30, 2016 - shares | shares	0
Weighted Average Grant Date Fair Value
Beginning of year - weighted average fair value | $ / shares	$ 16.48
Granted - weighted average fair value | $ / shares	23.83
Attained by performance - weighted average fair value | $ / shares	21.66
Vested and released - weighted average fair value | $ / shares	21.66
Forfeited - weighted average fair value | $ / shares	22.56
End of year - weighted average fair value | $ / shares	18.77
Maximum potential units outstanding at June 30, 2016 - weighted average fair value | $ / shares	$ 0

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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	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016	Dec. 31, 2015
Interest rate swap
Recurring financial liability that was measured at carrying value
Derivative liability	$ 650	$ 753	$ (768)
Realized gain (loss) on cash flow hedge	(6)		928
Foreign currency hedges
Recurring financial liability that was measured at carrying value
Derivative liability		(601)	$ 0
Realized gain (loss) on cash flow hedge	(51)	(18)
Derivative Asset	260
Recurring | Significant Other Observable Inputs (Level 2) | Interest rate swap
Recurring financial liability that was measured at carrying value
Derivative liability	650	753
Recurring | Significant Other Observable Inputs (Level 2) | Foreign currency hedges
Recurring financial liability that was measured at carrying value
Derivative liability		601
Derivative Asset	260
Recurring | Carrying Value | Interest rate swap
Recurring financial liability that was measured at carrying value
Derivative liability	650	753
Recurring | Carrying Value | Foreign currency hedges
Recurring financial liability that was measured at carrying value
Derivative liability		$ 601
Derivative Asset	$ 260

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Fair Value Measurements - Reconciliation of Recurring Financial Liability Related to Interest Rate Swaps (Details) - Designated As Hedging - Cash Flow Hedge - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016	Dec. 31, 2015
Interest rate swap
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Cost of Hedge Net of Cash Received	$ (6)
Reconciliation of the recurring financial derivatives
Beginning balance, derivative liability	753	$ (768)
Total gains/(losses) for the period:
Included in earnings	(6)		$ 928
Included in other comprehensive income	(91)		593
Ending balance, derivative liability	650	753	(768)
Foreign currency hedges
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Cost of Hedge Net of Cash Received	(75)	54
Reconciliation of the recurring financial derivatives
Beginning balance, derivative liability	(601)	0
Total gains/(losses) for the period:
Included in earnings	(51)	(18)
Included in other comprehensive income	987	(637)
Ending balance, derivative liability		$ (601)	$ 0
Ending balance, derivative asset	$ 260

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Income Taxes - Schedule of Effective Income Tax Rate (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Tax Disclosure [Abstract]
Effective income tax rate	31.10%	68.30%	30.00%	43.20%

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Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Reconciliation of effective income taxes rate
Effective income tax rate	31.10%	68.30%	30.00%	43.20%
Accrued for interest and penalties related to uncertain income tax	$ 181	$ 181	$ 533	$ 552

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Business Combinations - Narratives (Details) - USD ($) $ in Thousands			3 Months Ended		9 Months Ended
	May 15, 2017	Mar. 11, 2016	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Business Acquisition
Net cash paid					$ 19,121	$ 73,063
Cost of goods sold			$ 68,705	$ 63,056	204,527	$ 190,528
Noliac A/S
Business Acquisition
Net cash paid	$ 19,300
Net cash paid	19,121
Cash acquired in acquisition	$ 199
CTG Advanced Materials, LLC
Business Acquisition
Net cash paid		$ 73,063
Cash acquired in acquisition		$ 4
Acquisition related cost					$ 804

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Business Combinations - Acquisition (Details) - USD ($) $ in Thousands		9 Months Ended
	May 15, 2017	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016	Mar. 11, 2016
Business Acquisition
Goodwill		$ 68,933		$ 61,744
Net cash paid		$ 19,121	$ 73,063
Noliac A/S
Business Acquisition
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 9,142
Current assets	2,836
Property, plant and equipment	980
Other assets	108
Goodwill	7,189
Less fair value of liabilities acquired	(1,134)
Net cash paid	19,121
CTG Advanced Materials, LLC
Business Acquisition
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill					$ 35,427
Current assets					4,215
Property, plant and equipment					6,173
Other assets					37
Goodwill					27,879
Fair value of assets acquired	$ 20,255				73,731
Less fair value of liabilities acquired					$ (668)

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Business Combinations - Acquired Intangible Assets (Details) - CTG Advanced Materials, LLC $ in Thousands	Mar. 11, 2016 USD ($)
Business Acquisition
Fair Value	$ 35,427
Weighted Average Amortization Period (in years)	14 years 9 months 20 days
Developed Technology
Business Acquisition
Fair Value	$ 23,730
Weighted Average Amortization Period (in years)	15 years
Customer Relationships and Contracts
Business Acquisition
Fair Value	$ 11,502
Weighted Average Amortization Period (in years)	14 years 7 months 6 days
Other
Business Acquisition
Fair Value	$ 195
Weighted Average Amortization Period (in years)	9 months 18 days

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Business Combinations - Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended		7 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Business Acquisition
Net sales	$ 106,243	$ 99,697		$ 312,083	$ 295,095
Net earnings	$ 9,619	$ 3,720		$ 28,069	$ 26,070
CTG Advanced Materials, LLC
Business Acquisition
Net sales			$ 7,096
Net earnings			$ 256

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Business Combinations - Pro Forma (Details) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Business Acquisition, Pro Forma Information
Earnings Per Share, Basic	$ 0.29	$ 0.11	$ 0.85	$ 0.80
Earnings Per Share, Diluted	$ 0.29	$ 0.11	$ 0.84	$ 0.79

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Label	Element	Value
Repayments of Short-term Debt	us-gaap_RepaymentsOfShortTermDebt	$ 0