CTS (CTS) 10-Q 24 Oct 19 2019 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2019	Oct. 21, 2019
Document and Entity Information
Document Transition Report	false
Document Quarterly Report	true
Entity Registrant Name	CTS CORPORATION
Title of 12(b) Security	Common stock, without par value
Entity Incorporation, State or Country Code	IN
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3
Trading Symbol	CTS
Entity Registrant Name	1-4639
Entity Central Index Key	0000026058
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		32,601,889
Entity Tax Identification Number	35-0225010
Entity Address, City or Town	Lisle
Entity Address, State or Province	IL
City Area Code	(630)
Local Phone Number	577-8800
Security Exchange Name	NYSE
Entity Small Business	false

Consolidated Statements of Earn

Consolidated Statements of Earnings - Unaudited - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Statement [Abstract]
Net sales	$ 115,651	$ 118,859	$ 353,959	$ 350,410
Cost of goods sold	78,594	76,777	235,084	228,082
Gross Margin	37,057	42,082	118,875	122,328
Selling, general and administrative expenses	17,774	18,450	52,371	55,441
Research and development expenses	6,806	6,517	19,854	19,500
Restructuring charges	2,342	997	5,337	3,364
(Loss) Gain on Disposition of Property Plant Equipment	(11)	0	111	(2)
Operating earnings	10,124	16,118	41,424	44,021
Other income (expense):
Interest expense	(812)	(489)	(1,745)	(1,601)
Interest income	524	413	1,396	1,367
Other expense, net	(2,636)	(1,687)	(3,646)	(2,557)
Total other expense, net	(2,924)	(1,763)	(3,995)	(2,791)
Earnings before income taxes	7,200	14,355	37,429	41,230
Income tax expense	4,478	4,144	11,345	12,262
Net earnings	$ 2,722	$ 10,211	$ 26,084	$ 28,968
Earnings per share:
Basic (in dollars per share)	$ 0.08	$ 0.31	$ 0.80	$ 0.88
Diluted (in dollars per share)	$ 0.08	$ 0.30	$ 0.79	$ 0.86
Basic weighted - average common shares outstanding (in shares):	32,642	33,087	32,748	33,038
Effect of dilutive securities (in shares)	425	562	417	542
Diluted weighted - average common shares outstanding (in shares)	33,067	33,649	33,165	33,580
Cash dividends declared per share (in dollars per share)	$ 0.04	$ 0.04	$ 0.12	$ 0.12

Condensed Consolidated Statemen

Condensed Consolidated Statements of Comprehensive Earnings - Unaudited - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net earnings	$ 2,722	$ 10,211	$ 26,084	$ 28,968
Other comprehensive income:
Changes in fair market value of derivatives, net of tax	(740)	624	(956)	1,498
Changes in unrealized pension cost, net of tax	1,017	1,157	3,065	3,513
Cumulative translation adjustment, net of tax	(92)	1	(88)	(131)
Other comprehensive income	185	1,782	2,021	4,880
Comprehensive income	$ 2,907	$ 11,993	$ 28,105	$ 33,848

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - Unaudited - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current Assets
Cash and cash equivalents	$ 101,199	$ 100,933
Accounts receivable, net	80,789	79,518
Inventories, net	45,425	43,486
Other current assets	17,616	15,422
Total current assets	245,029	239,359
Property, plant and equipment, net	102,636	99,401
Operating Lease, Right-of-Use Asset	24,520	0
Other Assets
Prepaid pension asset	57,447	54,100
Goodwill	108,142	71,057
Other intangible assets, net	86,506	60,180
Deferred income taxes	20,990	22,201
Other	2,731	2,043
Total other assets	275,816	209,581
Total Assets	648,001	548,341
Current Liabilities
Accounts payable	48,434	51,975
Operating Lease, Liability, Current	2,677	0
Accrued payroll and benefits	11,218	14,671
Accrued liabilities	38,222	37,347
Total current liabilities	100,551	103,993
Long-term debt	112,700	50,000
Operating Lease, Liability, Noncurrent	24,879	0
Long-term pension and other post-retirement obligations	6,294	6,510
Deferred Tax Liabilities, Net, Noncurrent	3,745	3,990
Other long-term obligations	4,638	5,919
Total Liabilities	252,807	170,412
Shareholders’ Equity
Common stock	307,801	306,697
Additional contributed capital	42,849	42,820
Retained earnings	501,003	478,847
Accumulated other comprehensive loss	(95,718)	(97,739)
Total shareholders’ equity before treasury stock	755,935	730,625
Treasury stock	(360,741)	(352,696)
Total shareholders’ equity	395,194	377,929
Total Liabilities and Shareholders’ Equity	$ 648,001	$ 548,341

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Cash Flows - Unaudited - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 26,084	$ 28,968
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	18,038	16,349
Pension and Other Postretirement Expense (Income)	752	318
Stock-based compensation	3,950	4,104
Deferred income taxes	466	2,794
Restructuring impairment charges	1,100	0
Gain (Loss) on Disposition of Assets	111	(2)
Loss (gain) on foreign currency hedges, net of cash	79	(56)
Changes in assets and liabilities, net of acquisition:
Accounts receivable	385	(9,228)
Inventories	1,925	(6,045)
Increase (Decrease) in Operating Assets	(2,454)	0
Other assets	(3,153)	(417)
Accounts payable	(3,534)	4,761
Accrued payroll and benefits	(3,921)	1,224
Accrued liabilities	(4,806)	1,674
Income taxes payable	2,540	(1,510)
Increase (Decrease) in Operating Liabilities	2,764	0
Other liabilities	844	(145)
Pension and other post-retirement plans	(213)	(233)
Net cash provided by operating activities	40,735	42,560
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(15,299)	(20,800)
Proceeds from sale of assets	137	1
Payments for acquisitions, net of cash acquired	(73,588)	0
Net cash used in investing activities	(88,750)	(20,799)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments of long-term debt	(995,500)	(910,100)
Proceeds from borrowings of long-term debt	1,058,200	883,800
Payments for Repurchase of Common Stock	(8,045)	0
Dividends paid	(3,934)	(3,962)
Payments Related to Tax Withholding for Share-based Compensation	(2,653)	(1,433)
Net cash provided by (used) in financing activities	48,068	(31,695)
Effect of exchange rate changes on cash and cash equivalents	213	116
Net increase (decrease) in cash and cash equivalents	266	(9,818)
Cash and cash equivalents at beginning of period	100,933	113,572
Cash and cash equivalents at end of period	101,199	103,754
Supplemental cash flow information:
Cash paid for interest	1,208	1,302
Cash paid for income taxes, net	7,622	8,517
Capital expenditures incurred but not yet paid	$ 3,711	$ 3,944

Condensed Consolidated Statem_3

Condensed Consolidated Statement of Shareholders' Equity Condensed Consolidated Statement of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated other comprehensive (loss) income	Treasury Stock
Beginning Balance at Dec. 31, 2017	$ 343,805	$ 304,777	$ 41,084	$ 420,160	$ (78,960)	$ (343,256)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	11,548			11,548
Changes in fair market value of derivatives, net of tax	807				807
Changes in unrealized pension cost, net of tax	1,107				1,107
Cumulative translation adjustment, net of tax	243				243
Cash Dividends	(1,320)			(1,320)
Issued shares on vesting of restricted stock units	(1,423)	945	(2,368)
Stock compensation	965		965
Ending Balance at Mar. 31, 2018	355,732	305,722	39,681	430,388	(76,803)	(343,256)
Beginning Balance at Dec. 31, 2017	343,805	304,777	41,084	420,160	(78,960)	(343,256)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	28,968
Changes in fair market value of derivatives, net of tax	1,498
Changes in unrealized pension cost, net of tax	3,513
Cumulative translation adjustment, net of tax	(131)
Ending Balance at Sep. 30, 2018	376,205	306,574	41,807	445,160	(74,080)	(343,256)
Beginning Balance at Mar. 31, 2018	355,732	305,722	39,681	430,388	(76,803)	(343,256)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	7,209			7,209
Changes in fair market value of derivatives, net of tax	67				67
Changes in unrealized pension cost, net of tax	1,249				1,249
Cumulative translation adjustment, net of tax	(375)				(375)
Cash Dividends	(1,323)			(1,323)
Issued shares on vesting of restricted stock units	(5)	848	(853)
Stock compensation	1,206		1,206
Ending Balance at Jun. 30, 2018	363,760	306,570	40,034	436,274	(75,862)	(343,256)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	10,211
Changes in fair market value of derivatives, net of tax	624				624
Changes in unrealized pension cost, net of tax	1,157				1,157
Cumulative translation adjustment, net of tax	1				1
Cash Dividends	1,325			(1,325)
Issued shares on vesting of restricted stock units	(4)	4	(8)
Stock compensation	1,781		1,781
Ending Balance at Sep. 30, 2018	376,205	306,574	41,807	445,160	(74,080)	(343,256)
Beginning Balance at Dec. 31, 2018	377,929	306,697	42,820	478,847	(97,739)	(352,696)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	11,419			11,419
Changes in fair market value of derivatives, net of tax	78				78
Changes in unrealized pension cost, net of tax	1,022				1,022
Cumulative translation adjustment, net of tax	91				91
Cash Dividends	1,315			1,315
Treasury Stock, Value, Acquired, Cost Method	(849)					(849)
Issued shares on vesting of restricted stock units	(2,636)	967	(3,603)
Stock compensation	1,154		1,154
Ending Balance at Mar. 31, 2019	386,893	307,664	40,371	488,951	(96,548)	(353,545)
Beginning Balance at Dec. 31, 2018	377,929	306,697	42,820	478,847	(97,739)	(352,696)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	26,084
Changes in fair market value of derivatives, net of tax	(956)
Changes in unrealized pension cost, net of tax	3,065
Cumulative translation adjustment, net of tax	(88)
Ending Balance at Sep. 30, 2019	395,194	307,801	42,849	501,003	(95,718)	(360,741)
Beginning Balance at Mar. 31, 2019	386,893	307,664	40,371	488,951	(96,548)	(353,545)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	11,943			11,943
Changes in fair market value of derivatives, net of tax	(294)				(294)
Changes in unrealized pension cost, net of tax	1,026				1,026
Cumulative translation adjustment, net of tax	(87)				(87)
Cash Dividends	1,309			1,309
Treasury Stock, Value, Acquired, Cost Method	(4,153)					(4,153)
Issued shares on vesting of restricted stock units	0	111	(111)
Stock compensation	1,526		1,526
Ending Balance at Jun. 30, 2019	395,545	307,775	41,786	499,585	(95,903)	(357,698)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	2,722			2,722
Changes in fair market value of derivatives, net of tax	(740)				(740)
Changes in unrealized pension cost, net of tax	1,017				1,017
Cumulative translation adjustment, net of tax	(92)				(92)
Cash Dividends	1,304			1,304
Treasury Stock, Value, Acquired, Cost Method	(3,043)					(3,043)
Issued shares on vesting of restricted stock units	(15)	26	(41)
Stock compensation	1,104		1,104
Ending Balance at Sep. 30, 2019	$ 395,194	$ 307,801	$ 42,849	$ 501,003	$ (95,718)	$ (360,741)

Condensed Consolidated Statem_4

Condensed Consolidated Statement of Shareholders' Equity Condensed Consolidated Statement of Shareholders Equity (parenthetical) - $ / shares	3 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019
Statement of Stockholders' Equity [Abstract]
Cash dividends declared per share (in dollars per share)	$ 0.04	$ 0.04	$ 0.04
Treasury Stock, Shares, Acquired	106,760	148,466	31,500

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
Basis of Presentation	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, 2018 . 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. Changes in Accounting Principles Beginning in January 2019, CTS adopted the provisions of Accounting Standards Update ("ASU") 2016-02, "Leases (Topic 842) " under the optional transition method, which requires, if necessary, a cumulative effect adjustment to the opening balance of retained earnings. The lease liability is based on the present value of minimum lease payments discounted using our secured incremental borrowing rate at the date of adoption. Existing deferred rent liabilities, resulting from our historical practice of using the straight line method for recognizing lease expense, were reclassified upon adoption to reduce the measurement of the lease assets. We elected the package of practical expedients permitted under the transition guidance, which among other things, allows us to carry forward the historical accounting relating to lease identification and classification for existing leases at adoption. Our leases are classified as operating leases and expense is recorded in a manner similar to historical accounting guidance. We have also elected the practical expedient to not separate lease and non-lease components for the majority of our leases and the election to keep leases with an initial term of 12 months or less off of the balance sheet. Upon adoption we recorded a lease liability of $24,792 and a right of use asset of $22,066 . No adjustment to the opening balance of retained earnings was required. Subsequent Events We have evaluated subsequent events and transactions for potential recognition or disclosure in the financial statements through the date the condensed consolidated financial statements are issued.

Revenue Recognition (Notes)

Revenue Recognition (Notes)	9 Months Ended
	Sep. 30, 2019
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer [Text Block]	NOTE 2 – Revenue Recognition The core principle of Topic 606 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. The guidance provides a five-step process to achieve that core principle: • Identify the contract(s) with a customer • Identify the performance obligations • Determine the transaction price • Allocate the transaction price • Recognize revenue when the performance obligations are met We recognize revenue when the performance obligations specified in our contracts have been satisfied, after considering the impact of variable consideration and other factors that may affect the transaction price. Our contracts normally contain a single performance obligation that is fulfilled on the date of delivery based on shipping terms stipulated in the contract. We usually expect payment within 30 to 90 days from the shipping date, depending on our terms with the customer. None of our contracts as of September 30, 2019 , contained a significant financing component. Differences between the amount of revenue recognized and the amount invoiced, collected from, or paid to our customers are recognized as contract assets or liabilities. Contract assets will be reviewed for impairment when events or circumstances indicate that they may not be recoverable. To the extent the transaction price includes variable consideration, we estimate the amount of variable consideration that should be included in the transaction price utilizing the most likely amount method based on an analysis of historical experience and current facts and circumstances, which requires significant judgment. Variable consideration is included in the transaction price if, in our judgment, it is probable that a significant future reversal of cumulative revenue under the contract will not occur. Contract Assets and Liabilities Contract assets and liabilities included in our Condensed Consolidated Balance Sheets are as follows: As of September 30, December 31, 2019 2018 Contract Assets Prepaid rebates included in Other current assets $ 65 $ 65 Prepaid rebates included in Other assets 1,498 999 Total Contract Assets $ 1,563 $ 1,064 Contract Liabilities Customer discounts and price concessions included in Accrued liabilities $ (1,892 ) $ (1,656 ) Customer rights of return and other liabilities included in Accrued liabilities (857 ) (325 ) Total Contract Liabilities $ (2,749 ) $ (1,981 ) During the three and nine months ended September 30, 2019 , we recognized revenues of $125 and $231 , respectively, for amounts that were included in contract liabilities at the beginning of the period. Disaggregated Revenue The following table presents revenues disaggregated by the major markets we serve: Three Months Ended Nine Months Ended September 30, 2019 September 30, 2018 September 30, 2019 September 30, 2018 Aero & Defense $ 9,025 $ 5,692 $ 23,536 $ 16,819 Industrial 19,750 22,675 57,406 65,804 Medical 10,537 10,259 29,176 29,293 Telecom & IT 4,780 5,049 13,098 15,099 Transportation 71,559 75,184 230,743 223,395 Total $ 115,651 $ 118,859 $ 353,959 $ 350,410

Accounts Receivable

Accounts Receivable	9 Months Ended
	Sep. 30, 2019
Receivables [Abstract]
Accounts Receivable	NOTE 3 – Accounts Receivable The components of accounts receivable are as follows: As of September 30, December 31, 2019 2018 Accounts receivable, gross $ 80,984 $ 79,902 Less: Allowance for doubtful accounts (195 ) (384 ) Accounts receivable, net $ 80,789 $ 79,518

Inventories

Inventories	9 Months Ended
	Sep. 30, 2019
Inventory Disclosure [Abstract]
Inventories	NOTE 4 – Inventories Inventories consist of the following: As of September 30, December 31, 2019 2018 Finished goods $ 9,686 $ 10,995 Work-in-process 15,091 12,129 Raw materials 25,790 25,746 Less: Inventory reserves (5,142 ) (5,384 ) Inventories, net $ 45,425 $ 43,486

Property, Plant and Equipment

Property, Plant and Equipment	9 Months Ended
	Sep. 30, 2019
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	NOTE 5 – Property, Plant and Equipment Property, plant and equipment is comprised of the following: As of September 30, December 31, 2019 2018 Land $ 1,131 $ 1,136 Buildings and improvements 73,715 70,522 Machinery and equipment 232,955 231,619 Less: Accumulated depreciation (205,165 ) (203,876 ) Property, plant and equipment, net $ 102,636 $ 99,401 Depreciation expense for the nine months ended September 30, 2019 $ 12,657 Depreciation expense for the nine months ended September 30, 2018 $ 11,227

Retirement Plans

Retirement Plans	9 Months Ended
	Sep. 30, 2019
Retirement Benefits [Abstract]
Retirement Plans	Retirement Plans Pension Plans Net pension expense for our domestic and foreign plans included in other income (expense) in the condensed consolidated statement of earnings is as follows: Three Months Ended Nine Months Ended September 30, September 30, September 30, September 30, 2019 2018 2019 2018 Net pension expense $ 250 $ 77 $ 749 $ 234 The components of net pension expense for our domestic and foreign plans include the following: Domestic Pension Plans Foreign Pension Plans Three Months Ended Three Months Ended September 30, September 30, September 30, September 30, 2019 2018 2019 2018 Service cost $ — $ — $ 9 $ 11 Interest cost 1,931 1,781 8 10 Expected return on plan assets (1) (3,046 ) (3,225 ) (4 ) (6 ) Amortization of loss 1,311 1,466 41 40 Total expense, net $ 196 $ 22 $ 54 $ 55 (1) Expected return on plan assets is net of expected investment expenses and certain administrative expenses. Domestic Pension Plans Foreign Pension Plans Nine Months Ended Nine Months Ended September 30, September 30, September 30, September 30, 2019 2018 2019 2018 Service cost $ — $ — $ 27 $ 33 Interest cost 5,793 5,343 23 32 Expected return on plan assets (1) (9,140 ) (9,675 ) (13 ) (19 ) Amortization of loss 3,934 4,398 125 122 Total expense, net $ 587 $ 66 $ 162 $ 168 (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, 2019 2018 2019 2018 Service cost $ — $ — $ 1 $ 1 Interest cost 42 39 127 117 Amortization of gain (42 ) (11 ) (125 ) (34 ) Total expense, net $ — $ 28 $ 3 $ 84

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	9 Months Ended
	Sep. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	NOTE 7 – Goodwill and Other Intangible Assets Intangible assets consist of the following components: As of September 30, 2019 Gross Accumulated Net Amount Customer lists/relationships $ 94,223 $ (39,888 ) $ 54,335 Technology and other intangibles 46,260 (16,289 ) 29,971 In process research and development 2,200 — 2,200 Other intangible assets, net $ 142,683 $ (56,177 ) $ 86,506 Amortization expense for the three months ended September 30, 2019 $ 1,999 Amortization expense for the nine months ended September 30, 2019 $ 5,381 As of December 31, 2018 Gross Accumulated Net Amount Customer lists/relationships $ 64,323 $ (37,088 ) $ 27,235 Technology and other intangibles 44,460 (13,715 ) 30,745 In process research and development 2,200 — 2,200 Other intangible assets, net $ 110,983 $ (50,803 ) $ 60,180 Amortization expense for the three months ended September 30, 2018 $ 1,698 Amortization expense for the nine months ended September 30, 2018 $ 5,122 Remaining amortization expense for other intangible assets as of September 30, 2019 is as follows: Amortization 2019 $ 2,152 2020 8,479 2021 8,322 2022 8,085 2023 6,079 Thereafter 53,389 Total amortization expense $ 86,506 Changes in the net carrying value amount of goodwill were as follows: Total December 31, 2018 $ 71,057 Increase from acquisition 37,085 September 30, 2019 $ 108,142

Costs Associated with Exit and

Costs Associated with Exit and Restructuring Activities	9 Months Ended
	Sep. 30, 2019
Restructuring Cost and Reserve [Line Items]
Costs Associated with Exit and Restructuring Activities	NOTE 8 – 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 is as follows: Three Months Ended September 30, 2019 September 30, 2018 Restructuring charges $ 2,342 $ 997 Nine Months Ended September 30, 2019 September 30, 2018 Restructuring charges $ 5,337 $ 3,364 2016 Plan In June 2016, we announced plans to restructure operations by phasing out production at our Elkhart facility and transitioning it into a research and development center supporting our global operations ("June 2016 Plan"). Additional organizational changes were also implemented 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 have now been consolidated into a single facility. The total restructuring liability under the June 2016 Plan was $333 at September 30, 2019 , and $668 at December 31, 2018 . Additional costs related to production 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, 2019 : Actual costs Planned incurred through June 2016 Plan Costs September 30, 2019 Workforce reduction $ 3,075 $ 3,310 Building and equipment relocation 9,025 10,262 Other charges (1) 1,300 2,088 Total restructuring charges $ 13,400 $ 15,660 (1) Other charges includes the effects of currency translation, non-cash asset write-downs and other charges. 2014 Plan 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 our business model and rationalize our global footprint (“April 2014 Plan”). These restructuring actions were completed in 2015. The remaining restructuring liability related to the April 2014 Plan was $693 at September 30, 2019 , and $918 at December 31, 2018 . Other Restructuring Activities Beginning in Q3 2019, we incurred restructuring charges of $1,671 for exit and disposal activities at three facilities, of which $800 was related to a lease termination charge resulting from our acquisition of Quality Thermistor, Inc. (see Note 19) and $871 was related to workforce and building relocation costs at two foreign facilities. The total remaining restructuring liability associated with these actions was $752 at September 30, 2019 . The following table displays the restructuring liability activity for all plans for the nine months ended September 30, 2019 : Restructuring liability at January 1, 2019 $ 1,586 Restructuring charges 5,337 Cost paid (3,534 ) Other activity (1) (1,611 ) Restructuring liability at September 30, 2019 $ 1,778 (1) Other activity includes the effects of currency translation, non-cash asset write-downs and other charges that do not flow through restructuring expense.

Accrued Liabilities

Accrued Liabilities	9 Months Ended
	Sep. 30, 2019
Other Liabilities Disclosure [Abstract]
Accrued Liabilities	NOTE 9 – Accrued Liabilities The components of accrued liabilities are as follows: As of September 30, December 31, 2019 2018 Accrued product related costs $ 4,594 $ 4,377 Accrued income taxes 9,365 6,914 Accrued property and other taxes 1,880 1,976 Accrued professional fees 1,589 3,350 Contract liabilities 2,749 1,981 Dividends payable 1,304 1,310 Remediation reserves 9,945 11,274 Other accrued liabilities 6,796 6,165 Total accrued liabilities $ 38,222 $ 37,347

Contingencies

Contingencies	9 Months Ended
	Sep. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Contingencies	NOTE 10 – Commitments and 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. Two of those sites, Asheville, North Carolina and Mountain View, California, are designated National Priorities List sites under the U.S. Environmental Protection Agency’s Superfund program. We accrue a liability for probable remediation activities, claims and proceedings against us with respect to environmental matters if the amount can be reasonably estimated, and provide disclosures including the nature of a loss whenever it is probable or reasonably possible that a potentially material loss may have occurred but cannot be estimated. We record contingent loss accruals on an undiscounted basis. In the opinion of management, based upon presently available information relating to such matters, adequate provision for probable and estimable losses have been recorded. Due to the inherent nature of environmental obligations, we cannot provide assurance that our ultimate environmental liability will not materially exceed the amount of our accrued losses. A roll-forward of remediation reserves included in accrued liabilities on the balance sheet is comprised of the following: As of September 30, 2019 December 31, 2018 Balance at beginning of period $ 11,274 $ 17,067 Remediation expense 323 1,182 Net remediation payments (1,645 ) (6,967 ) Other activity (1) (7 ) (8 ) Balance at end of the period $ 9,945 $ 11,274 (1) Other activity includes currency translation adjustments not recorded through remediation expense. 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 probable and estimable 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. Our accrued liabilities and disclosures will be adjusted accordingly if additional information becomes available in the future.

Debt

Debt	9 Months Ended
	Sep. 30, 2019
Debt Disclosure [Abstract]
Debt	NOTE 11 - Debt Long-term debt is comprised of the following: As of September 30, December 31, 2019 2018 Total credit facility $ 300,000 $ 300,000 Balance outstanding 112,700 50,000 Standby letters of credit 1,800 1,940 Amount available $ 185,500 $ 248,060 Weighted-average interest rate 3.41 % 3.10 % Commitment fee percentage per annum 0.20 % 0.20 % On February 12, 2019, we entered into an amended and restated five-year Credit Agreement with a group of banks (the "Credit Agreement") to extend the term of the facility. The Credit Agreement provides for a revolving credit facility of $300,000 , which may be increased by $150,000 at the request of the Company, subject to the administrative agent's approval. This new unsecured credit facility replaces the prior $300,000 unsecured credit facility, which would have expired August 10, 2020. Borrowings of $50,000 under the prior credit agreement were refinanced into the Credit Agreement. The prior agreement was terminated as of February 12, 2019. 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 the base rate defined in the Credit Agreement. We also pay a quarterly commitment fee on the unused portion of the Revolving Credit Facility. The commitment fee ranges from 0.20% to 0.30% 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, 2019 . 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 LIBOR and the Company’s quarterly total leverage ratio. We have debt issuance costs related to our long-term debt that are being amortized using the straight-line method over the life of the debt. Amortization expense was approximately $42 and $46 for the three months ended September 30, 2019 and 2018 , respectively, and approximately $121 and $139

Derivative Financial Instrument

Derivative Financial Instruments	9 Months Ended
	Sep. 30, 2019
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. The effective portion of derivative gains and losses are recorded in accumulated other comprehensive (loss) income until the hedged transaction affects earnings upon settlement, at which time they are reclassified to cost of goods sold or net sales. If it is probable that an anticipated hedged transaction 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 (loss) income to other income (expense). We assess hedge effectiveness qualitatively by verifying that the critical terms of the hedging instrument and the forecasted transaction continue to match, and that there have been no adverse developments that have increased the risk that the counterparty will default. No recognition of ineffectiveness was recorded in our Condensed Consolidated Statement of Earnings for the three and nine months ended September 30, 2019 . Foreign Currency Hedges We use 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. We continue to monitor the Company’s overall currency exposure and may elect to add cash flow hedges in the future. At September 30, 2019 , we had a net unrealized gain of $452 in accumulated other comprehensive (loss) income, of which $432 is expected to be reclassified to income within the next 12 months. At September 30, 2018 we had a net unrealized gain of $867 in accumulated other comprehensive (loss) income. The notional amount of foreign currency forward contracts outstanding was $11,738 at September 30, 2019 . Interest Rate Swaps We use interest rate swaps to convert a portion of our revolving credit facility’s outstanding balance from a variable rate of interest to a fixed rate. As of September 30, 2019 , we have agreements to fix interest rates on $50,000 of long-term debt through February 2024. 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 are recorded in other comprehensive (loss) income. The estimated net amount of the existing gains that are reported in accumulated other comprehensive (loss) income that are expected to be reclassified into earnings within the next twelve months is approximately $127 . The location and fair values of derivative instruments designated as hedging instruments in the Condensed Consolidated Balance Sheets as of September 30, 2019 , are shown in the following table: As of September 30, December 31, 2019 2018 Interest rate swaps reported in Other current assets $ 127 $ 576 Interest rate swaps reported in Other assets — 369 Interest rate swaps reported in Other long-term obligations (498 ) — Foreign currency hedges reported in Other current assets $ 395 $ 393 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 $463 and foreign currency derivative liabilities of $68 at September 30, 2019 . 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, 2019 2018 2019 2018 Foreign Exchange Contracts: Amounts reclassified from AOCI to earnings: Net sales $ — $ 152 $ — $ 115 Cost of goods sold 286 (52 ) 562 88 Selling, general and administrative expense 23 3 62 (2 ) Total amounts reclassified from AOCI to earnings 309 103 624 201 Loss recognized in other expense for hedge ineffectiveness — — — (1 ) Total derivative gain on foreign exchange contracts recognized in earnings $ 309 $ 103 $ 624 $ 200 Interest Rate Swaps: Benefit recorded in Interest expense $ 117 $ 114 $ 430 $ 284 Total gain $ 426 $ 217 $ 1,054 $ 484

Accumulated Other Comprehensive

Accumulated Other Comprehensive (Loss) Income	9 Months Ended
	Sep. 30, 2019
Equity [Abstract]
Accumulated Other Comprehensive (Loss) Income	NOTE 13 – 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 a portion of our revolving credit facility's outstanding balance from a 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 our derivative financial instruments is included in Note 12 - Derivative Financial Instruments and Note 16 – 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 6 – 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 income. Changes in exchange rates between the functional currency and the currency in which a transaction is denominated are foreign exchange transaction gains or losses. Transaction losses for the three months and nine months ended September 30, 2019 were $2,473 and $2,828 , respectively and transaction losses for the three and nine months ended September 30, 2018 were $1,740 and $2,658 , 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, 2019 , are as follows: (Gain) Loss As of Gain (Loss) Reclassified As of June 30, Recognized from AOCI September 30, 2019 in OCI to Income 2019 Changes in fair market value of hedges: Gross $ 1,036 $ (529 ) $ (426 ) $ 81 Income tax (expense) benefit (234 ) 119 96 (19 ) Net 802 (410 ) (330 ) 62 Changes in unrealized pension cost: Gross (129,810 ) — 1,313 (128,497 ) Income tax benefit (expense) 35,297 — (296 ) 35,001 Net (94,513 ) — 1,017 (93,496 ) Cumulative translation adjustment: Gross (2,287 ) (89 ) — (2,376 ) Income tax benefit (expense) 95 (3 ) — 92 Net (2,192 ) (92 ) — (2,284 ) Total accumulated other comprehensive (loss) income $ (95,903 ) $ (502 ) $ 687 $ (95,718 ) The components of accumulated other comprehensive (loss) income for the three months ended September 30, 2018 , are as follows: (Gain) Loss As of Gain (Loss) Reclassified As of June 30, Recognized from AOCI September 30, 2018 in OCI to Income 2018 Changes in fair market value of hedges: Gross $ 1,418 $ 1,023 $ (217 ) $ 2,224 Income tax (expense) benefit (360 ) (231 ) 49 (542 ) Net 1,058 792 (168 ) 1,682 Changes in unrealized pension cost: Gross (127,055 ) — 1,491 (125,564 ) Income tax benefit (expense) 52,152 — (334 ) 51,818 Net (74,903 ) — 1,157 (73,746 ) Cumulative translation adjustment: Gross (2,115 ) 1 — (2,114 ) Income tax benefit 98 — — 98 Net (2,017 ) 1 — (2,016 ) Total accumulated other comprehensive (loss) income $ (75,862 ) $ 793 $ 989 $ (74,080 ) The components of accumulated other comprehensive (loss) income for the nine months ended September 30, 2019 are as follows: (Gain) Loss As of Gain (Loss) Reclassified As of December 31, Recognized from AOCI September 30, 2018 in OCI to Income 2019 Changes in fair market value of hedges: Gross $ 1,316 $ (181 ) $ (1,054 ) $ 81 Income tax (expense) benefit (298 ) 41 238 (19 ) Net 1,018 (140 ) (816 ) 62 Changes in unrealized pension cost: Gross (132,454 ) — 3,957 (128,497 ) Income tax benefit (expense) 35,893 — (892 ) 35,001 Net (96,561 ) — 3,065 (93,496 ) Cumulative translation adjustment: Gross (2,291 ) (85 ) — (2,376 ) Income tax benefit (expense) 95 (3 ) — 92 Net (2,196 ) (88 ) — (2,284 ) Total accumulated other comprehensive (loss) income $ (97,739 ) $ (228 ) $ 2,249 $ (95,718 ) The components of accumulated other comprehensive (loss) income for the nine months ended September 30, 2018 are as follows: (Gain) Loss As of Gain (Loss) Reclassified As of December 31, Recognized from AOCI September 30, 2017 in OCI to Income 2018 Changes in fair market value of hedges: Gross $ 289 $ 2,420 $ (485 ) $ 2,224 Income tax (expense) benefit (105 ) (547 ) 110 (542 ) Net 184 1,873 (375 ) 1,682 Changes in unrealized pension cost: Gross (130,096 ) — 4,532 (125,564 ) Income tax benefit (expense) 52,837 — (1,019 ) 51,818 Net (77,259 ) — 3,513 (73,746 ) Cumulative translation adjustment: Gross (1,985 ) (129 ) — (2,114 ) Income tax benefit (expense) 100 (2 ) — 98 Net (1,885 ) (131 ) — (2,016 ) Total accumulated other comprehensive (loss) income $ (78,960 ) $ 1,742 $ 3,138 $ (74,080 )

Shareholders' Equity

Shareholders' Equity	9 Months Ended
	Sep. 30, 2019
Stockholders' Equity Note [Abstract]
Shareholders' Equity	NOTE 14 – Shareholders’ Equity Share count and par value data related to shareholders’ equity are as follows: As of September 30, December 31, 2019 2018 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 56,924,737 56,786,849 Shares outstanding 32,601,889 32,750,727 Treasury stock Shares held 24,322,848 24,036,122 On February 7, 2019, the Board of Directors authorized a new stock repurchase program with a maximum dollar limit of $25,000 in stock repurchases, which replaced the previous program. During the nine months ended September 30, 2019 , 286,726 shares of common stock were repurchased for approximately $8,045 , of which $567 was repurchased under the previous program and $7,478 was repurchased under the most recent board-authorized share repurchase plan. Approximately $17,522 is available for future purchases. A roll-forward of common shares outstanding is as follows: Nine Months Ended September 30, September 30, 2019 2018 Balance at the beginning of the year 32,750,727 32,938,466 Repurchases (286,726 ) — Restricted share issuances 137,888 148,815 Balance at the end of the period 32,601,889 33,087,281 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 for the nine month periods ended September 30, 2019 and September 30, 2018 were 20,273 and 1,538 , respectively. There were no outstanding anti-dilutive awards impacting the three month periods ended September 30, 2019 and September 30, 2018 .

Equity-Based Compensation

Equity-Based Compensation	9 Months Ended
	Sep. 30, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Equity-Based Compensation	NOTE 15 - Stock-Based Compensation At September 30, 2019 , we had five 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”), the 2014 Performance & Incentive Plan (“2014 Plan”), and the 2018 Equity and Incentive Compensation Plan ("2018 Plan"). Future grants can only be made under the 2018 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, 2019 2018 2019 2018 Service-based RSUs $ 618 $ 523 $ 1,712 $ 1,541 Performance-based RSUs 486 1,258 2,072 2,411 Cash-settled RSUs 53 137 166 152 Total $ 1,157 $ 1,918 $ 3,950 $ 4,104 Income tax benefit 262 433 893 927 Net $ 895 $ 1,485 $ 3,057 $ 3,177 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, 2019 Period Service-based RSUs $ 1,607 1.4 Performance-based RSUs 3,159 1.72 Total $ 4,766 1.61 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, 2019 : 2018 Plan 2014 Plan 2009 Plan 2004 Plan Directors' Plan Awards originally available 2,500,000 1,500,000 3,400,000 6,500,000 N/A Performance-based options outstanding — 250,000 — — — Maximum potential RSU and cash settled awards outstanding 245,456 418,199 92,600 35,952 5,522 Maximum potential awards outstanding 245,456 668,199 92,600 35,952 5,522 RSUs and cash settled awards vested and released — — — — — Awards available for grant 2,254,544 — — — — 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 250,000 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 trailing four quarterly 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, 2019 and 2018 , 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, 2019 : Units Weighted Outstanding at January 1, 2019 355,590 $ 17.91 Granted 74,591 28.78 Vested and released (67,526 ) 19.97 Forfeited (15,899 ) 27.00 Outstanding at September 30, 2019 346,756 $ 19.43 Releasable at September 30, 2019 206,474 $ 13.79 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, 2019 : Units Weighted Outstanding at January 1, 2019 267,792 $ 21.44 Granted 82,103 30.98 Attained by performance 60,779 13.54 Released (160,889 ) 14.34 Forfeited (26,156 ) 23.81 Outstanding at September 30, 2019 223,629 $ 27.70 Releasable at September 30, 2019 — $ — The following table summarizes each grant of performance awards outstanding at September 30, 2019 . Description Grant Date Vesting Year Vesting Dependency Target Units Outstanding Maximum Number of Units to be Granted 2017 - 2019 Performance RSUs February 9, 2017 2019 35% RTSR, 35% sales growth, 30% operating cash flow 71,188 142,376 2017 - 2019 Performance RSUs February 9, 2017 2018 - 2020 Operating Income 13,556 13,556 2018 - 2020 Performance RSUs February 8, 2018 2020 35% RTSR, 35% sales growth, 30% operating cash flow 34,478 68,956 2018 - 2020 Performance RSUs February 16, 2018 2020 35% RTSR, 35% sales growth, 30% operating cash flow 31,820 63,640 2019 - 2021 Performance RSUs February 7, 2019 2021 35% RTSR, 35% sales growth, 30% operating cash flow 65,642 131,285 2019 Supplemental Performance RSUs February 7, 2019 2021 Succession Planning Targets 6,945 13,890 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, 2019 and December 31, 2018 we had 17,271 and 17,248 cash-settled RSUs outstanding, respectively. At September 30, 2019 and December 31, 2018, liabilities of $263 and $300 , respectively, were included in Accrued liabilities on our Condensed Consolidated Balance Sheets.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements We use interest rate swaps to convert a portion of our Revolving Credit Facility’s outstanding balance from a 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 (liabilities) that are measured at fair value on a recurring basis at September 30, 2019 : Quoted Asset Prices (Liability) in Active Significant Carrying Markets for Other Significant Value at Identical Observable Unobservable September 30, Instruments Inputs Inputs 2019 (Level 1) (Level 2) (Level 3) Interest rate swaps $ (372 ) $ — $ (372 ) $ — Foreign currency hedges $ 395 $ — $ 395 $ — The table below summarizes the financial assets that are measured at fair value on a recurring basis as of December 31, 2018 : Quoted Prices Asset in Active Significant Carrying Markets for Other Significant Value at Identical Observable Unobservable December 31, Instruments Inputs Inputs 2018 (Level 1) (Level 2) (Level 3) Interest rate swaps $ 945 $ — $ 945 $ — Foreign currency hedges $ 393 $ — $ 393 $ — 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, 2018 $ 971 $ (742 ) Cash settlements paid (received) 421 (402 ) Total gains (losses) for the period: Included in earnings (421 ) 484 Included in other comprehensive income (26 ) 1,053 Balance at December 31, 2018 $ 945 $ 393 Cash settlements received (430 ) (703 ) Total gains (losses) for the period: Included in earnings 430 624 Included in other comprehensive income (1,317 ) 81 Balance at September 30, 2019 $ (372 ) $ 395 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.

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The effective tax rates for the three and nine -month periods ended September 30, 2019 and 2018 are as follows: Three Months Ended Nine Months Ended September 30, September 30, September 30, September 30, 2019 2018 2019 2018 Effective tax rate 62.2 % 28.9 % 30.3 % 29.7 % Our effective income tax rate was 62.2% and 28.9% in the third quarters of 2019 and 2018 , respectively. This increase is primarily attributed to the net impact of changes in reserves relating to uncertain tax positions. The tax rate in the third quarter of 2019 was higher than the U.S. statutory federal tax rate primarily due to an increase to reserves for uncertain tax positions associated with the Company's operations in China and foreign earnings that are taxed at higher rates. The tax rate in the third quarter of 2018 was higher than the U.S. statutory federal tax rate primarily due to foreign withholding taxes including the impact of a one-time distribution from Taiwan and foreign earnings that are taxed at higher rates. Our effective income tax rate was 30.3% and 29.7%

Leases Leases

Leases Leases	9 Months Ended
	Sep. 30, 2019
Disclosure Text Block [Abstract]
Lessee, Operating Leases [Text Block]	NOTE 18 — Leases We lease certain land, buildings and equipment under non-cancellable operating leases used in our operations. Operating lease assets represent our right to use an underlying asset for the lease term. Operating lease liabilities represent the present value of lease payments over the lease term, discounted using an estimate of our secured incremental borrowing rate because none of our leases contain a rate implicit in the lease arrangement. The operating lease assets and liabilities are adjusted to include the impact of any lease incentives and non-lease components. We have elected not to separate lease and non-lease components, which include taxes and common area maintenance in some of our leases. Variable lease payments that depend on an index or a rate are included in lease payments using the prevailing index or rate in effect at lease commencement. Options to extend or terminate a lease are included in the lease term when it is reasonably likely that we will exercise that option. We have elected not to record leases with an initial term of 12 months or less on the balance sheet and instead recognize those lease payments on a straight-line basis over the lease term. We determine if an arrangement is a lease or contains a lease at its inception, which normally does not require significant estimates or judgments. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants and we currently have no material sublease agreements. Total lease expense for the three and nine months ended September 30, 2019 is as follows: Three Months Ended Nine Months Ended September 30, 2019 September 30, 2019 Operating lease cost $ 1,128 $ 3,197 Short-term lease cost 43 292 Total lease cost $ 1,171 $ 3,489 Remaining maturity of our existing lease liabilities as of September 30, 2019 is as follows: Operating Leases (1) 2019 $ 1,117 2020 4,420 2021 4,310 2022 4,116 2023 3,701 Thereafter 20,442 Total $ 38,106 Less: interest (10,550 ) Present value of lease liabilities $ 27,556 (1) Operating lease payments include $5,266 of payments related to options to extend lease terms that are reasonably expected to be exercised. Balance Sheet Classification: Operating lease obligations $ 2,677 Long-term operating lease obligations 24,879 Total lease liabilities $ 27,556 Weighted-average remaining lease terms (years) 9.27 Weighted-average discount rate 6.81 % Supplemental cash flow information related to leases: Cash paid for amounts included in the measurement of lease liabilities $ 2,887 Leased assets obtained in exchange for new operating lease liabilities $ 2,961

Business Combinations Business

Business Combinations Business Combinations Disclosure (Notes)	9 Months Ended
	Sep. 30, 2019
Business Combinations [Abstract]
Business Combination Disclosure [Text Block]	NOTE 19 – Business Acquisitions On July 31, 2019, we acquired 100% of the outstanding shares of Quality Thermistor, Inc. (QTI) for $75 million plus a contingent earn out of up to $5 million based on sales performance objectives. The purchase price includes adjustments for debt assumed and changes in working capital. QTI, doing business as QTI Sensing Solutions, is a leading designer and manufacturer of high-quality temperature sensors serving original equipment manufacturers with mission-critical applications in the industrial, aerospace, defense and medical markets. This acquisition provides us with a new core temperature sensing technology that expands our sensing product portfolio, while increasing our presence in the industrial and medical markets. The purchase price of $75,755 has been allocated to the fair values of assets and liabilities acquired as of July 31, 2019. The allocation of purchase price is preliminary pending the completion of the appraisals of property, plant, and equipment, the valuation of intangible assets, and finalization of management's estimates. The final purchase price allocation may result in a materially different allocation than that recorded as of September 30, 2019. The following table summarizes the consideration paid and the preliminary fair values of the assets acquired and the liabilities assumed at the date of acquisition: Consideration Paid Cash paid, net of cash acquired of $567 $ 73,588 Contingent consideration 2,167 Purchase price $ 75,755 Preliminary Fair Values at July 31, 2019 Current assets $ 7,212 Property, plant and equipment 2,502 Other assets 29 Goodwill 37,085 Intangible assets 31,700 Fair value of assets acquired 78,528 Less fair value of liabilities acquired (2,773 ) Purchase price $ 75,755 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 of customer relationships 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. Contingent consideration is payable in cash upon the achievement of a revenue performance target for the year ending December 31, 2019. The Company recorded $2,167 as the acquisition date fair value of the contingent consideration based on an estimate of the probability of achieving the performance target using the most recent revenue forecast. This amount is reflected as an addition to purchase price and will be finalized once the full year 2019 results are known. The following table summarizes the preliminary carrying amounts and weighted average lives of the acquired intangible assets: Carrying Value Weighted Average Amortization Period Customer lists/relationships $ 29,900 15.0 Technology and other intangibles 1,800 5.0 Total $ 31,700 Results of operations for QTI are included in our consolidated condensed financial statements beginning on July 31, 2019. The amount of net sales and net loss from QTI since the acquisition date that have been included in the condensed consolidated statements of earnings are as follows: For the period July 31, 2019 through September 30, 2019 Net sales $ 3,670 Net loss $ (1,086 )

Recent Accounting Pronouncement

Recent Accounting Pronouncements	9 Months Ended
	Sep. 30, 2019
Recent Accounting Pronouncements [Abstract]
Description of New Accounting Pronouncements Not yet Adopted [Text Block]	NOTE 20 — Recent Accounting Pronouncements ASU 2018-14 "Compensation - Retirement Benefits - Defined Benefit Plans - General" In August 2018, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2018-14, "Compensation - Retirement Benefits - Defined Benefit Plans - General." This ASU modifies the disclosure requirements for defined benefit and other postretirement plans. This ASU eliminates certain disclosures associated with accumulated other comprehensive income, plan assets, related parties, and the effects of interest rate basis point changes on assumed health care costs; while other disclosures have been added to address significant gains and losses related to changes in benefit obligations. This ASU also clarifies disclosure requirements for projected benefit and accumulated benefit obligations. The amendments in this ASU are effective for fiscal years ending after December 15, 2020 and for interim periods therein with early adoption permitted. Adoption on a retrospective basis for all periods presented is required. This ASU will impact our financial statement disclosures but will not have an impact on our consolidated financial position, results of operations, or cash flows. ASU 2018-13 "Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement" In August 2018, the FASB issued ASU No. 2018-13 "Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement" . This ASU modified the disclosures related to recurring and nonrecurring fair value measurements. Disclosures related to the transfer of assets between Level 1 and Level 2 hierarchies have been eliminated and various additional disclosures related to Level 3 fair value measurements have been added, modified or removed. This ASU is effective for annual periods beginning after December 15, 2019, and interim periods within those fiscal years. Early adoption is permitted upon issuance of the standard for disclosures modified or removed with a delay of adoption of the additional disclosures until their effective date. This ASU is not expected to have an impact on our financial statements. 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, U.S. 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 financial statements. ASU 2016-13 "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments" In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which amends the current accounting guidance and requires the measurement of all expected losses based on historical experience, current conditions and reasonable and supportable forecasts. For trade receivables, loans, and other financial instruments, we will be required to use a forward-looking expected loss model rather than the incurred loss model for recognizing credit losses which reflects losses that are probable. The standard will become effective for interim and annual periods beginning after December 15, 2019, with early adoption permitted. Application of the amendments is through a cumulative-effect adjustment to retained earnings as of the effective date. We plan to adopt this standard on the effective date and are currently evaluating the impact of this new standard on our financial statements.

Basis of Presentation (Policies

Basis of Presentation (Policies)	9 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]	Changes in Accounting Principles Beginning in January 2019, CTS adopted the provisions of Accounting Standards Update ("ASU") 2016-02, "Leases (Topic 842) " under the optional transition method, which requires, if necessary, a cumulative effect adjustment to the opening balance of retained earnings. The lease liability is based on the present value of minimum lease payments discounted using our secured incremental borrowing rate at the date of adoption. Existing deferred rent liabilities, resulting from our historical practice of using the straight line method for recognizing lease expense, were reclassified upon adoption to reduce the measurement of the lease assets. We elected the package of practical expedients permitted under the transition guidance, which among other things, allows us to carry forward the historical accounting relating to lease identification and classification for existing leases at adoption. Our leases are classified as operating leases and expense is recorded in a manner similar to historical accounting guidance. We have also elected the practical expedient to not separate lease and non-lease components for the majority of our leases and the election to keep leases with an initial term of 12 months or less off of the balance sheet. Upon adoption we recorded a lease liability of $24,792 and a right of use asset of $22,066 . No adjustment to the opening balance of retained earnings was required.
Basis of Presentation	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, 2018 . 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 20 — Recent Accounting Pronouncements ASU 2018-14 "Compensation - Retirement Benefits - Defined Benefit Plans - General" In August 2018, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2018-14, "Compensation - Retirement Benefits - Defined Benefit Plans - General." This ASU modifies the disclosure requirements for defined benefit and other postretirement plans. This ASU eliminates certain disclosures associated with accumulated other comprehensive income, plan assets, related parties, and the effects of interest rate basis point changes on assumed health care costs; while other disclosures have been added to address significant gains and losses related to changes in benefit obligations. This ASU also clarifies disclosure requirements for projected benefit and accumulated benefit obligations. The amendments in this ASU are effective for fiscal years ending after December 15, 2020 and for interim periods therein with early adoption permitted. Adoption on a retrospective basis for all periods presented is required. This ASU will impact our financial statement disclosures but will not have an impact on our consolidated financial position, results of operations, or cash flows. ASU 2018-13 "Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement" In August 2018, the FASB issued ASU No. 2018-13 "Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement" . This ASU modified the disclosures related to recurring and nonrecurring fair value measurements. Disclosures related to the transfer of assets between Level 1 and Level 2 hierarchies have been eliminated and various additional disclosures related to Level 3 fair value measurements have been added, modified or removed. This ASU is effective for annual periods beginning after December 15, 2019, and interim periods within those fiscal years. Early adoption is permitted upon issuance of the standard for disclosures modified or removed with a delay of adoption of the additional disclosures until their effective date. This ASU is not expected to have an impact on our financial statements. 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, U.S. 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 financial statements. ASU 2016-13 "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments" In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which amends the current accounting guidance and requires the measurement of all expected losses based on historical experience, current conditions and reasonable and supportable forecasts. For trade receivables, loans, and other financial instruments, we will be required to use a forward-looking expected loss model rather than the incurred loss model for recognizing credit losses which reflects losses that are probable. The standard will become effective for interim and annual periods beginning after December 15, 2019, with early adoption permitted. Application of the amendments is through a cumulative-effect adjustment to retained earnings as of the effective date. We plan to adopt this standard on the effective date and are currently evaluating the impact of this new standard on our financial statements.
Subsequent Events [Text Block]	Subsequent Events We have evaluated subsequent events and transactions for potential recognition or disclosure in the financial statements through the date the condensed consolidated financial statements are issued.
Separation of Lease and Nonlease Components [Policy Text Block]	We have also elected the practical expedient to not separate lease and non-lease components for the majority of our leases and the election to keep leases with an initial term of 12 months or less off of the balance sheet.
Short-term Leases [Policy Text Block]	We have also elected the practical expedient to not separate lease and non-lease components for the majority of our leases and the election to keep leases with an initial term of 12 months or less off of the balance sheet.

Leases Policies (Policies)

Leases Policies (Policies)	9 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Separation of Lease and Nonlease Components [Policy Text Block]	We have also elected the practical expedient to not separate lease and non-lease components for the majority of our leases and the election to keep leases with an initial term of 12 months or less off of the balance sheet.
Short-term Leases [Policy Text Block]	We have also elected the practical expedient to not separate lease and non-lease components for the majority of our leases and the election to keep leases with an initial term of 12 months or less off of the balance sheet.

Revenue Recognition Contract As

Revenue Recognition Contract Assets and Liabilities (Tables)	9 Months Ended
	Sep. 30, 2019
Contract Assets and Liabilities [Abstract]
Contract with Customer, Asset and Liability [Table Text Block]	Contract assets and liabilities included in our Condensed Consolidated Balance Sheets are as follows: As of September 30, December 31, 2019 2018 Contract Assets Prepaid rebates included in Other current assets $ 65 $ 65 Prepaid rebates included in Other assets 1,498 999 Total Contract Assets $ 1,563 $ 1,064 Contract Liabilities Customer discounts and price concessions included in Accrued liabilities $ (1,892 ) $ (1,656 ) Customer rights of return and other liabilities included in Accrued liabilities (857 ) (325 ) Total Contract Liabilities $ (2,749 ) $ (1,981 )

Revenue Recognition Disaggregat

Revenue Recognition Disaggregated Revenue (Tables)	9 Months Ended
	Sep. 30, 2019
Disaggregation of Revenue [Abstract]
Disaggregation of Revenue [Table Text Block]	The following table presents revenues disaggregated by the major markets we serve: Three Months Ended Nine Months Ended September 30, 2019 September 30, 2018 September 30, 2019 September 30, 2018 Aero & Defense $ 9,025 $ 5,692 $ 23,536 $ 16,819 Industrial 19,750 22,675 57,406 65,804 Medical 10,537 10,259 29,176 29,293 Telecom & IT 4,780 5,049 13,098 15,099 Transportation 71,559 75,184 230,743 223,395 Total $ 115,651 $ 118,859 $ 353,959 $ 350,410

Accounts Receivable (Tables)

Accounts Receivable (Tables)	9 Months Ended
	Sep. 30, 2019
Receivables [Abstract]
Components of Accounts Receivable	The components of accounts receivable are as follows: As of September 30, December 31, 2019 2018 Accounts receivable, gross $ 80,984 $ 79,902 Less: Allowance for doubtful accounts (195 ) (384 ) Accounts receivable, net $ 80,789 $ 79,518

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Sep. 30, 2019
Inventory Disclosure [Abstract]
Summary of Inventories	Inventories consist of the following: As of September 30, December 31, 2019 2018 Finished goods $ 9,686 $ 10,995 Work-in-process 15,091 12,129 Raw materials 25,790 25,746 Less: Inventory reserves (5,142 ) (5,384 ) Inventories, net $ 45,425 $ 43,486

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	9 Months Ended
	Sep. 30, 2019
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, 2019 2018 Land $ 1,131 $ 1,136 Buildings and improvements 73,715 70,522 Machinery and equipment 232,955 231,619 Less: Accumulated depreciation (205,165 ) (203,876 ) Property, plant and equipment, net $ 102,636 $ 99,401 Depreciation expense for the nine months ended September 30, 2019 $ 12,657 Depreciation expense for the nine months ended September 30, 2018 $ 11,227

Retirement Plans (Tables)

Retirement Plans (Tables)	9 Months Ended
	Sep. 30, 2019
Retirement Benefits [Abstract]
Net Pension Income or Postretirement Expense	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, 2019 2018 2019 2018 Service cost $ — $ — $ 1 $ 1 Interest cost 42 39 127 117 Amortization of gain (42 ) (11 ) (125 ) (34 ) Total expense, net $ — $ 28 $ 3 $ 84 Net pension expense for our domestic and foreign plans included in other income (expense) in the condensed consolidated statement of earnings is as follows: Three Months Ended Nine Months Ended September 30, September 30, September 30, September 30, 2019 2018 2019 2018 Net pension expense $ 250 $ 77 $ 749 $ 234 The components of net pension expense for our domestic and foreign plans include the following: Domestic Pension Plans Foreign Pension Plans Three Months Ended Three Months Ended September 30, September 30, September 30, September 30, 2019 2018 2019 2018 Service cost $ — $ — $ 9 $ 11 Interest cost 1,931 1,781 8 10 Expected return on plan assets (1) (3,046 ) (3,225 ) (4 ) (6 ) Amortization of loss 1,311 1,466 41 40 Total expense, net $ 196 $ 22 $ 54 $ 55 (1) Expected return on plan assets is net of expected investment expenses and certain administrative expenses. Domestic Pension Plans Foreign Pension Plans Nine Months Ended Nine Months Ended September 30, September 30, September 30, September 30, 2019 2018 2019 2018 Service cost $ — $ — $ 27 $ 33 Interest cost 5,793 5,343 23 32 Expected return on plan assets (1) (9,140 ) (9,675 ) (13 ) (19 ) Amortization of loss 3,934 4,398 125 122 Total expense, net $ 587 $ 66 $ 162 $ 168

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2019
Goodwill [Line Items]
Schedule of Goodwill [Table Text Block]	Total December 31, 2018 $ 71,057 Increase from acquisition 37,085 September 30, 2019 $ 108,142
Summary of other intangible assets	Intangible assets consist of the following components: As of September 30, 2019 Gross Accumulated Net Amount Customer lists/relationships $ 94,223 $ (39,888 ) $ 54,335 Technology and other intangibles 46,260 (16,289 ) 29,971 In process research and development 2,200 — 2,200 Other intangible assets, net $ 142,683 $ (56,177 ) $ 86,506 Amortization expense for the three months ended September 30, 2019 $ 1,999 Amortization expense for the nine months ended September 30, 2019 $ 5,381 As of December 31, 2018 Gross Accumulated Net Amount Customer lists/relationships $ 64,323 $ (37,088 ) $ 27,235 Technology and other intangibles 44,460 (13,715 ) 30,745 In process research and development 2,200 — 2,200 Other intangible assets, net $ 110,983 $ (50,803 ) $ 60,180 Amortization expense for the three months ended September 30, 2018 $ 1,698 Amortization expense for the nine months ended September 30, 2018 $ 5,122
Summary of amortization expense remaining for other intangible assets	Remaining amortization expense for other intangible assets as of September 30, 2019 is as follows: Amortization 2019 $ 2,152 2020 8,479 2021 8,322 2022 8,085 2023 6,079 Thereafter 53,389 Total amortization expense $ 86,506

Costs Associated with Exit an_2

Costs Associated with Exit and Restructuring Activities (Tables)	9 Months Ended
	Sep. 30, 2019
Restructuring and Related Activities Disclosure [Text Block]	NOTE 8 – 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 is as follows: Three Months Ended September 30, 2019 September 30, 2018 Restructuring charges $ 2,342 $ 997 Nine Months Ended September 30, 2019 September 30, 2018 Restructuring charges $ 5,337 $ 3,364 2016 Plan In June 2016, we announced plans to restructure operations by phasing out production at our Elkhart facility and transitioning it into a research and development center supporting our global operations ("June 2016 Plan"). Additional organizational changes were also implemented 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 have now been consolidated into a single facility. The total restructuring liability under the June 2016 Plan was $333 at September 30, 2019 , and $668 at December 31, 2018 . Additional costs related to production 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, 2019 : Actual costs Planned incurred through June 2016 Plan Costs September 30, 2019 Workforce reduction $ 3,075 $ 3,310 Building and equipment relocation 9,025 10,262 Other charges (1) 1,300 2,088 Total restructuring charges $ 13,400 $ 15,660 (1) Other charges includes the effects of currency translation, non-cash asset write-downs and other charges. 2014 Plan 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 our business model and rationalize our global footprint (“April 2014 Plan”). These restructuring actions were completed in 2015. The remaining restructuring liability related to the April 2014 Plan was $693 at September 30, 2019 , and $918 at December 31, 2018 . Other Restructuring Activities Beginning in Q3 2019, we incurred restructuring charges of $1,671 for exit and disposal activities at three facilities, of which $800 was related to a lease termination charge resulting from our acquisition of Quality Thermistor, Inc. (see Note 19) and $871 was related to workforce and building relocation costs at two foreign facilities. The total remaining restructuring liability associated with these actions was $752 at September 30, 2019 . The following table displays the restructuring liability activity for all plans for the nine months ended September 30, 2019 : Restructuring liability at January 1, 2019 $ 1,586 Restructuring charges 5,337 Cost paid (3,534 ) Other activity (1) (1,611 ) Restructuring liability at September 30, 2019 $ 1,778 (1) Other activity includes the effects of currency translation, non-cash asset write-downs and other charges that do not flow through restructuring expense.
Restructuring Reserve Activity	The following table displays the restructuring liability activity for all plans for the nine months ended September 30, 2019 : Restructuring liability at January 1, 2019 $ 1,586 Restructuring charges 5,337 Cost paid (3,534 ) Other activity (1) (1,611 ) Restructuring liability at September 30, 2019 $ 1,778 (1) Other activity includes the effects of currency translation, non-cash asset write-downs and other charges that do not flow through restructuring expense.
Other Restructuring [Member]
Restructuring and Related Activities Disclosure [Text Block]	Other Restructuring Activities Beginning in Q3 2019, we incurred restructuring charges of $1,671 for exit and disposal activities at three facilities, of which $800 was related to a lease termination charge resulting from our acquisition of Quality Thermistor, Inc. (see Note 19) and $871 was related to workforce and building relocation costs at two foreign facilities. The total remaining restructuring liability associated with these actions was $752 at September 30, 2019 .
Restructuring Charges [Member]
Restructuring and Related Activities Disclosure [Text Block]	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 is as follows: Three Months Ended September 30, 2019 September 30, 2018 Restructuring charges $ 2,342 $ 997 Nine Months Ended September 30, 2019 September 30, 2018 Restructuring charges $ 5,337 $ 3,364
June 2016 Plan
Restructuring, Impairment, and Other Activities Disclosure [Text Block]	2016 Plan In June 2016, we announced plans to restructure operations by phasing out production at our Elkhart facility and transitioning it into a research and development center supporting our global operations ("June 2016 Plan"). Additional organizational changes were also implemented 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 have now been consolidated into a single facility. The total restructuring liability under the June 2016 Plan was $333 at September 30, 2019 , and $668 at December 31, 2018 . Additional costs related to production 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, 2019 : Actual costs Planned incurred through June 2016 Plan Costs September 30, 2019 Workforce reduction $ 3,075 $ 3,310 Building and equipment relocation 9,025 10,262 Other charges (1) 1,300 2,088 Total restructuring charges $ 13,400 $ 15,660
April 2014 Plan
Restructuring and Related Activities Disclosure [Text Block]	2014 Plan 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 our business model and rationalize our global footprint (“April 2014 Plan”). These restructuring actions were completed in 2015. The remaining restructuring liability related to the April 2014 Plan was $693 at September 30, 2019 , and $918 at December 31, 2018

Accrued Liabilities (Tables)

Accrued Liabilities (Tables)	9 Months Ended
	Sep. 30, 2019
Other Liabilities Disclosure [Abstract]
Components of Accrued Liabilities	The components of accrued liabilities are as follows: As of September 30, December 31, 2019 2018 Accrued product related costs $ 4,594 $ 4,377 Accrued income taxes 9,365 6,914 Accrued property and other taxes 1,880 1,976 Accrued professional fees 1,589 3,350 Contract liabilities 2,749 1,981 Dividends payable 1,304 1,310 Remediation reserves 9,945 11,274 Other accrued liabilities 6,796 6,165 Total accrued liabilities $ 38,222 $ 37,347

Debt (Tables)

Debt (Tables)	9 Months Ended
	Sep. 30, 2019
Debt Disclosure [Abstract]
Summary of Long-Term Debt	Long-term debt is comprised of the following: As of September 30, December 31, 2019 2018 Total credit facility $ 300,000 $ 300,000 Balance outstanding 112,700 50,000 Standby letters of credit 1,800 1,940 Amount available $ 185,500 $ 248,060 Weighted-average interest rate 3.41 % 3.10 % Commitment fee percentage per annum 0.20 % 0.20 %

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2019
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, 2019 , are shown in the following table: As of September 30, December 31, 2019 2018 Interest rate swaps reported in Other current assets $ 127 $ 576 Interest rate swaps reported in Other assets — 369 Interest rate swaps reported in Other long-term obligations (498 ) — Foreign currency hedges reported in Other current assets $ 395 $ 393
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, 2019 2018 2019 2018 Foreign Exchange Contracts: Amounts reclassified from AOCI to earnings: Net sales $ — $ 152 $ — $ 115 Cost of goods sold 286 (52 ) 562 88 Selling, general and administrative expense 23 3 62 (2 ) Total amounts reclassified from AOCI to earnings 309 103 624 201 Loss recognized in other expense for hedge ineffectiveness — — — (1 ) Total derivative gain on foreign exchange contracts recognized in earnings $ 309 $ 103 $ 624 $ 200 Interest Rate Swaps: Benefit recorded in Interest expense $ 117 $ 114 $ 430 $ 284 Total gain $ 426 $ 217 $ 1,054 $ 484 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, 2018 $ 971 $ (742 ) Cash settlements paid (received) 421 (402 ) Total gains (losses) for the period: Included in earnings (421 ) 484 Included in other comprehensive income (26 ) 1,053 Balance at December 31, 2018 $ 945 $ 393 Cash settlements received (430 ) (703 ) Total gains (losses) for the period: Included in earnings 430 624 Included in other comprehensive income (1,317 ) 81 Balance at September 30, 2019 $ (372 ) $ 395

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive (Loss) Income (Tables)	9 Months Ended
	Sep. 30, 2019
Equity [Abstract]
Schedule of Accumulated Other Comprehensive (Loss) Income	The components of accumulated other comprehensive (loss) income for the three months ended September 30, 2019 , are as follows: (Gain) Loss As of Gain (Loss) Reclassified As of June 30, Recognized from AOCI September 30, 2019 in OCI to Income 2019 Changes in fair market value of hedges: Gross $ 1,036 $ (529 ) $ (426 ) $ 81 Income tax (expense) benefit (234 ) 119 96 (19 ) Net 802 (410 ) (330 ) 62 Changes in unrealized pension cost: Gross (129,810 ) — 1,313 (128,497 ) Income tax benefit (expense) 35,297 — (296 ) 35,001 Net (94,513 ) — 1,017 (93,496 ) Cumulative translation adjustment: Gross (2,287 ) (89 ) — (2,376 ) Income tax benefit (expense) 95 (3 ) — 92 Net (2,192 ) (92 ) — (2,284 ) Total accumulated other comprehensive (loss) income $ (95,903 ) $ (502 ) $ 687 $ (95,718 ) The components of accumulated other comprehensive (loss) income for the three months ended September 30, 2018 , are as follows: (Gain) Loss As of Gain (Loss) Reclassified As of June 30, Recognized from AOCI September 30, 2018 in OCI to Income 2018 Changes in fair market value of hedges: Gross $ 1,418 $ 1,023 $ (217 ) $ 2,224 Income tax (expense) benefit (360 ) (231 ) 49 (542 ) Net 1,058 792 (168 ) 1,682 Changes in unrealized pension cost: Gross (127,055 ) — 1,491 (125,564 ) Income tax benefit (expense) 52,152 — (334 ) 51,818 Net (74,903 ) — 1,157 (73,746 ) Cumulative translation adjustment: Gross (2,115 ) 1 — (2,114 ) Income tax benefit 98 — — 98 Net (2,017 ) 1 — (2,016 ) Total accumulated other comprehensive (loss) income $ (75,862 ) $ 793 $ 989 $ (74,080 ) The components of accumulated other comprehensive (loss) income for the nine months ended September 30, 2019 are as follows: (Gain) Loss As of Gain (Loss) Reclassified As of December 31, Recognized from AOCI September 30, 2018 in OCI to Income 2019 Changes in fair market value of hedges: Gross $ 1,316 $ (181 ) $ (1,054 ) $ 81 Income tax (expense) benefit (298 ) 41 238 (19 ) Net 1,018 (140 ) (816 ) 62 Changes in unrealized pension cost: Gross (132,454 ) — 3,957 (128,497 ) Income tax benefit (expense) 35,893 — (892 ) 35,001 Net (96,561 ) — 3,065 (93,496 ) Cumulative translation adjustment: Gross (2,291 ) (85 ) — (2,376 ) Income tax benefit (expense) 95 (3 ) — 92 Net (2,196 ) (88 ) — (2,284 ) Total accumulated other comprehensive (loss) income $ (97,739 ) $ (228 ) $ 2,249 $ (95,718 ) The components of accumulated other comprehensive (loss) income for the nine months ended September 30, 2018 are as follows: (Gain) Loss As of Gain (Loss) Reclassified As of December 31, Recognized from AOCI September 30, 2017 in OCI to Income 2018 Changes in fair market value of hedges: Gross $ 289 $ 2,420 $ (485 ) $ 2,224 Income tax (expense) benefit (105 ) (547 ) 110 (542 ) Net 184 1,873 (375 ) 1,682 Changes in unrealized pension cost: Gross (130,096 ) — 4,532 (125,564 ) Income tax benefit (expense) 52,837 — (1,019 ) 51,818 Net (77,259 ) — 3,513 (73,746 ) Cumulative translation adjustment: Gross (1,985 ) (129 ) — (2,114 ) Income tax benefit (expense) 100 (2 ) — 98 Net (1,885 ) (131 ) — (2,016 ) Total accumulated other comprehensive (loss) income $ (78,960 ) $ 1,742 $ 3,138 $ (74,080 )

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	9 Months Ended
	Sep. 30, 2019
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, 2019 2018 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 56,924,737 56,786,849 Shares outstanding 32,601,889 32,750,727 Treasury stock Shares held 24,322,848 24,036,122
Treasury Stock [Text Block]	On February 7, 2019, the Board of Directors authorized a new stock repurchase program with a maximum dollar limit of $25,000 in stock repurchases, which replaced the previous program. During the nine months ended September 30, 2019 , 286,726 shares of common stock were repurchased for approximately $8,045 , of which $567 was repurchased under the previous program and $7,478 was repurchased under the most recent board-authorized share repurchase plan. Approximately $17,522 is available for future purchases.
Summary of Common Shares Outstanding	A roll-forward of common shares outstanding is as follows: Nine Months Ended September 30, September 30, 2019 2018 Balance at the beginning of the year 32,750,727 32,938,466 Repurchases (286,726 ) — Restricted share issuances 137,888 148,815 Balance at the end of the period 32,601,889 33,087,281 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 for the nine month periods ended September 30, 2019 and September 30, 2018 were 20,273 and 1,538 , respectively. There were no outstanding anti-dilutive awards impacting the three month periods ended September 30, 2019 and September 30, 2018 .

Equity-Based Compensation (Tabl

Equity-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2019
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, 2019 2018 2019 2018 Service-based RSUs $ 618 $ 523 $ 1,712 $ 1,541 Performance-based RSUs 486 1,258 2,072 2,411 Cash-settled RSUs 53 137 166 152 Total $ 1,157 $ 1,918 $ 3,950 $ 4,104 Income tax benefit 262 433 893 927 Net $ 895 $ 1,485 $ 3,057 $ 3,177
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, 2019 Period Service-based RSUs $ 1,607 1.4 Performance-based RSUs 3,159 1.72 Total $ 4,766 1.61
Summary of Status of Equity-Based Compensation Plans	The following table summarizes the status of these plans as of September 30, 2019 : 2018 Plan 2014 Plan 2009 Plan 2004 Plan Directors' Plan Awards originally available 2,500,000 1,500,000 3,400,000 6,500,000 N/A Performance-based options outstanding — 250,000 — — — Maximum potential RSU and cash settled awards outstanding 245,456 418,199 92,600 35,952 5,522 Maximum potential awards outstanding 245,456 668,199 92,600 35,952 5,522 RSUs and cash settled awards vested and released — — — — — Awards available for grant 2,254,544 — — — —
Summary of Service-Based Restricted Stock Units	The following table summarizes the service-based RSU activity as of and for the nine months ended September 30, 2019 : Units Weighted Outstanding at January 1, 2019 355,590 $ 17.91 Granted 74,591 28.78 Vested and released (67,526 ) 19.97 Forfeited (15,899 ) 27.00 Outstanding at September 30, 2019 346,756 $ 19.43 Releasable at September 30, 2019 206,474 $ 13.79
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, 2019 : Units Weighted Outstanding at January 1, 2019 267,792 $ 21.44 Granted 82,103 30.98 Attained by performance 60,779 13.54 Released (160,889 ) 14.34 Forfeited (26,156 ) 23.81 Outstanding at September 30, 2019 223,629 $ 27.70 Releasable at September 30, 2019 — $ — The following table summarizes each grant of performance awards outstanding at September 30, 2019 . Description Grant Date Vesting Year Vesting Dependency Target Units Outstanding Maximum Number of Units to be Granted 2017 - 2019 Performance RSUs February 9, 2017 2019 35% RTSR, 35% sales growth, 30% operating cash flow 71,188 142,376 2017 - 2019 Performance RSUs February 9, 2017 2018 - 2020 Operating Income 13,556 13,556 2018 - 2020 Performance RSUs February 8, 2018 2020 35% RTSR, 35% sales growth, 30% operating cash flow 34,478 68,956 2018 - 2020 Performance RSUs February 16, 2018 2020 35% RTSR, 35% sales growth, 30% operating cash flow 31,820 63,640 2019 - 2021 Performance RSUs February 7, 2019 2021 35% RTSR, 35% sales growth, 30% operating cash flow 65,642 131,285 2019 Supplemental Performance RSUs February 7, 2019 2021 Succession Planning Targets 6,945 13,890

Fair Value Measurement (Tables)

Fair Value Measurement (Tables)	9 Months Ended
	Sep. 30, 2019
Fair Value Disclosures [Abstract]
Summary of Financial Liability Measured at Fair Value on a Recurring Basis	The table below summarizes our financial assets (liabilities) that are measured at fair value on a recurring basis at September 30, 2019 : Quoted Asset Prices (Liability) in Active Significant Carrying Markets for Other Significant Value at Identical Observable Unobservable September 30, Instruments Inputs Inputs 2019 (Level 1) (Level 2) (Level 3) Interest rate swaps $ (372 ) $ — $ (372 ) $ — Foreign currency hedges $ 395 $ — $ 395 $ — The table below summarizes the financial assets that are measured at fair value on a recurring basis as of December 31, 2018 : Quoted Prices Asset in Active Significant Carrying Markets for Other Significant Value at Identical Observable Unobservable December 31, Instruments Inputs Inputs 2018 (Level 1) (Level 2) (Level 3) Interest rate swaps $ 945 $ — $ 945 $ — Foreign currency hedges $ 393 $ — $ 393 $ —
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, 2019 2018 2019 2018 Foreign Exchange Contracts: Amounts reclassified from AOCI to earnings: Net sales $ — $ 152 $ — $ 115 Cost of goods sold 286 (52 ) 562 88 Selling, general and administrative expense 23 3 62 (2 ) Total amounts reclassified from AOCI to earnings 309 103 624 201 Loss recognized in other expense for hedge ineffectiveness — — — (1 ) Total derivative gain on foreign exchange contracts recognized in earnings $ 309 $ 103 $ 624 $ 200 Interest Rate Swaps: Benefit recorded in Interest expense $ 117 $ 114 $ 430 $ 284 Total gain $ 426 $ 217 $ 1,054 $ 484 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, 2018 $ 971 $ (742 ) Cash settlements paid (received) 421 (402 ) Total gains (losses) for the period: Included in earnings (421 ) 484 Included in other comprehensive income (26 ) 1,053 Balance at December 31, 2018 $ 945 $ 393 Cash settlements received (430 ) (703 ) Total gains (losses) for the period: Included in earnings 430 624 Included in other comprehensive income (1,317 ) 81 Balance at September 30, 2019 $ (372 ) $ 395

Leases Lease Cost (Tables)

Leases Lease Cost (Tables)	9 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Lease, Cost [Table Text Block]	Total lease expense for the three and nine months ended September 30, 2019 is as follows: Three Months Ended Nine Months Ended September 30, 2019 September 30, 2019 Operating lease cost $ 1,128 $ 3,197 Short-term lease cost 43 292 Total lease cost $ 1,171 $ 3,489

Leases Schedule of Future Minim

Leases Schedule of Future Minimum Rental Payments for Operating Leases (Tables)	9 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	Remaining maturity of our existing lease liabilities as of September 30, 2019 is as follows: Operating Leases (1) 2019 $ 1,117 2020 4,420 2021 4,310 2022 4,116 2023 3,701 Thereafter 20,442 Total $ 38,106 Less: interest (10,550 ) Present value of lease liabilities $ 27,556 (1) Operating lease payments include $5,266 of payments related to options to extend lease terms that are reasonably expected to be exercised.

Business Combinations (Tables)

Business Combinations (Tables)	9 Months Ended
	Sep. 30, 2019
Business Acquisition [Line Items]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	Consideration Paid Cash paid, net of cash acquired of $567 $ 73,588 Contingent consideration 2,167 Purchase price $ 75,755 Preliminary Fair Values at July 31, 2019 Current assets $ 7,212 Property, plant and equipment 2,502 Other assets 29 Goodwill 37,085 Intangible assets 31,700 Fair value of assets acquired 78,528 Less fair value of liabilities acquired (2,773 ) Purchase price $ 75,755
Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]	Carrying Value Weighted Average Amortization Period Customer lists/relationships $ 29,900 15.0 Technology and other intangibles 1,800 5.0 Total $ 31,700
Business Acquisition, Stub Period Information Information [Table Text Block]	For the period July 31, 2019 through September 30, 2019 Net sales $ 3,670 Net loss $ (1,086 )

Basis of Presentation (Details)

Basis of Presentation (Details) - USD ($) $ in Thousands	Jan. 01, 2019	Sep. 30, 2019	Dec. 31, 2018
ASC 842 Implementation [Abstract]
Lease, Practical Expedients, Package [true false]	true
Operating Lease, Liability	$ 24,792	$ 27,556
Separation of Lease and Nonlease Components [Policy Text Block]		We have also elected the practical expedient to not separate lease and non-lease components for the majority of our leases and the election to keep leases with an initial term of 12 months or less off of the balance sheet.
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	0
Operating Lease, Right-of-Use Asset	$ 22,066	$ 24,520	$ 0

Revenue Recognition Contract _2

Revenue Recognition Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019	Dec. 31, 2018
Contract Assets and Liabilities [Abstract]
Contract with Customer, Liability, Revenue Recognized	$ 125	$ 231
Contract with Customer, Asset, Net, Current	65	65	$ 65
Contract with Customer, Asset, Net, Noncurrent	1,498	1,498	999
Contract with Customer, Asset, Net	1,563	1,563	1,064
Customer Contract Liability Discounts	(1,892)	(1,892)	(1,656)
Customer Contract Liability Rights of Return	(857)	(857)	(325)
Contract with Customer, Liability, Current	$ (2,749)	$ (2,749)	$ (1,981)

Revenue Recognition Disaggreg_2

Revenue Recognition Disaggregated Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Disaggregation of Revenue [Line Items]
Revenues	$ 115,651	$ 118,859	$ 353,959	$ 350,410
Aerospace and Defense [Member]
Disaggregation of Revenue [Line Items]
Revenues	9,025	5,692	23,536	16,819
Industrial [Member]
Disaggregation of Revenue [Line Items]
Revenues	19,750	22,675	57,406	65,804
Medical [Member]
Disaggregation of Revenue [Line Items]
Revenues	10,537	10,259	29,176	29,293
Telecommunications & IT [Member]
Disaggregation of Revenue [Line Items]
Revenues	4,780	5,049	13,098	15,099
Transportation [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 71,559	$ 75,184	$ 230,743	$ 223,395

Accounts Receivable - Component

Accounts Receivable - Components of Accounts Receivable (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Accounts Receivable
Accounts receivable, gross	$ 80,984	$ 79,902
Less: Allowance for doubtful accounts	(195)	(384)
Accounts receivable, net	$ 80,789	$ 79,518

Inventories - Summary of Invent

Inventories - Summary of Inventories (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Inventories
Finished goods	$ 9,686	$ 10,995
Work-in-process	15,091	12,129
Raw materials	25,790	25,746
Less: Inventory reserves	(5,142)	(5,384)
Inventories, net	$ 45,425	$ 43,486

Property, Plant and Equipment -

Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Property, plant and equipment
Less: Accumulated depreciation	$ (205,165)		$ (203,876)
Property, plant and equipment, net	102,636		99,401
Depreciation	12,657	$ 11,227
Land
Property, plant and equipment
Property, plant and equipment gross	1,131		1,136
Buildings and improvements
Property, plant and equipment
Property, plant and equipment gross	73,715		70,522
Machinery and equipment
Property, plant and equipment
Property, plant and equipment gross	$ 232,955		$ 231,619

Retirement Plans - Net Pension

Retirement Plans - Net Pension Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Pension Plans
Defined Benefit Plan Disclosure
Net pension expense	$ 250	$ 77	$ 749	$ 234

Retirement Plans - Net Pensio_2

Retirement Plans - Net Pension Income Domestic and Foreign (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Pension Plans
Net pension expense (income)
(Income) expense, net	$ 250	$ 77	$ 749	$ 234
UNITED STATES
Net pension expense (income)
Service cost	0	0	0	0
Interest cost	1,931	1,781	5,793	5,343
Defined Benefit Plan, Expected Return on Plan Assets, Net of Expenses	(3,046)	(3,225)	(9,140)	(9,675)
Amortization of loss	1,311	1,466	3,934	4,398
(Income) expense, net	196	22	587	66
Foreign Plan [Member]
Net pension expense (income)
Service cost	9	11	27	33
Interest cost	8	10	23	32
Defined Benefit Plan, Expected Return on Plan Assets, Net of Expenses	(4)	(6)	(13)	(19)
Amortization of loss	41	40	125	122
(Income) expense, net	$ 54	$ 55	$ 162	$ 168

Retirement Plans - Other Postre

Retirement Plans - Other Postretirement Benefit Plan (Details) - Other Postretirement Benefits Plan [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Defined Benefit Plan Disclosure
Service cost	$ 0	$ 0	$ 1	$ 1
Interest cost	42	39	127	117
Amortization of gain	(42)	(11)	(125)	(34)
(Income) expense, net	$ 0	$ 28	$ 3	$ 84

Other Intangible Assets - Summa

Other Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Other Intangible Assets
Gross Carrying Amount	$ 142,683		$ 142,683		$ 110,983
Accumulated Amortization	(56,177)		(56,177)		(50,803)
Total amortization expense	86,506		86,506		60,180
Amortization expense	1,999	$ 1,698	5,381	$ 5,122
Customer lists/relationships
Other Intangible Assets
Gross Carrying Amount	94,223		94,223		64,323
Accumulated Amortization	(39,888)		(39,888)		(37,088)
Total amortization expense	54,335		54,335		27,235
Technology and other intangibles
Other Intangible Assets
Gross Carrying Amount	46,260		46,260		44,460
Accumulated Amortization	(16,289)		(16,289)		(13,715)
Total amortization expense	29,971		29,971		30,745
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

Other Intangible Assets - Sum_2

Other Intangible Assets - Summary of Amortization Expense (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule
2016	$ 2,152
2017	8,479
2018	8,322
2019	8,085
2020	6,079
Thereafter	53,389
Total amortization expense	$ 86,506	$ 60,180

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets Goodwill Rollforward (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2019USD ($)
Increase from acquisition [Abstract]
Goodwill, Beg Balance	$ 71,057
Goodwill, Other Increase (Decrease)	37,085
Goodwill, End Balance	$ 108,142

Costs Associated with Exit an_3

Costs Associated with Exit and Restructuring Activities - Summary (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Operating Earnings | April 2014 Plan and June 2016 Plan [Member]
Total restructuring, impairment and restructuring related charges
Restructuring and impairment charges	$ 2,342	$ 997	$ 5,337	$ 3,364

Costs Associated with Exit an_4

Costs Associated with Exit and Restructuring Activities Costs Associated with Exit and Restructuring Activities - June 2016 Plan (Details) - June 2016 Plan - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018	Jun. 03, 2016
Restructuring Cost and Reserve [Line Items]
Actual costs incurred	$ 10,262
Total restructuring, impairment and restructuring related charges
Restructuring Reserve	333	$ 668
Operating Earnings
Restructuring Cost and Reserve [Line Items]
Planned Costs			$ 13,400
Actual costs incurred	15,660
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	2,088
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	$ 3,310

Costs Associated with Exit an_5

Costs Associated with Exit and Restructuring Activities - April 2014 Plan (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Activities Disclosure [Text Block]	NOTE 8 – 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 is as follows: Three Months Ended September 30, 2019 September 30, 2018 Restructuring charges $ 2,342 $ 997 Nine Months Ended September 30, 2019 September 30, 2018 Restructuring charges $ 5,337 $ 3,364 2016 Plan In June 2016, we announced plans to restructure operations by phasing out production at our Elkhart facility and transitioning it into a research and development center supporting our global operations ("June 2016 Plan"). Additional organizational changes were also implemented 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 have now been consolidated into a single facility. The total restructuring liability under the June 2016 Plan was $333 at September 30, 2019 , and $668 at December 31, 2018 . Additional costs related to production 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, 2019 : Actual costs Planned incurred through June 2016 Plan Costs September 30, 2019 Workforce reduction $ 3,075 $ 3,310 Building and equipment relocation 9,025 10,262 Other charges (1) 1,300 2,088 Total restructuring charges $ 13,400 $ 15,660 (1) Other charges includes the effects of currency translation, non-cash asset write-downs and other charges. 2014 Plan 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 our business model and rationalize our global footprint (“April 2014 Plan”). These restructuring actions were completed in 2015. The remaining restructuring liability related to the April 2014 Plan was $693 at September 30, 2019 , and $918 at December 31, 2018 . Other Restructuring Activities Beginning in Q3 2019, we incurred restructuring charges of $1,671 for exit and disposal activities at three facilities, of which $800 was related to a lease termination charge resulting from our acquisition of Quality Thermistor, Inc. (see Note 19) and $871 was related to workforce and building relocation costs at two foreign facilities. The total remaining restructuring liability associated with these actions was $752 at September 30, 2019 . The following table displays the restructuring liability activity for all plans for the nine months ended September 30, 2019 : Restructuring liability at January 1, 2019 $ 1,586 Restructuring charges 5,337 Cost paid (3,534 ) Other activity (1) (1,611 ) Restructuring liability at September 30, 2019 $ 1,778 (1) Other activity includes the effects of currency translation, non-cash asset write-downs and other charges that do not flow through restructuring expense.
April 2014 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Activities Disclosure [Text Block]	2014 Plan 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 our business model and rationalize our global footprint (“April 2014 Plan”). These restructuring actions were completed in 2015. The remaining restructuring liability related to the April 2014 Plan was $693 at September 30, 2019 , and $918 at December 31, 2018
Restructuring Reserve	$ 693	$ 918

Costs Associated with Exit an_6

Costs Associated with Exit and Restructuring Activities - Restructuring Reserve Activity (Details) - April 2014 Plan and June 2016 Plan [Member] $ in Thousands	9 Months Ended
	Sep. 30, 2019USD ($)
Restructuring reserve activity
Restructuring liability at beginning	$ 1,586
Restructuring and restructuring-related charges	5,337
Cost paid	(3,534)
Restructuring liability at ending	1,778
Restructuring Reserve, Translation and Other Adjustment	$ (1,611)

Costs Associated with Exit an_7

Costs Associated with Exit and Restructuring Activities Other Restructuring Activities (Details) $ in Thousands	Sep. 30, 2019USD ($)
Other Restructuring Activities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 752

Accrued Liabilities - Component

Accrued Liabilities - Components of Accrued Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018	Dec. 31, 2017
Accrued Liabilities
Accrued product related costs	$ 4,594	$ 4,377
Accrued income taxes	9,365	6,914
Accrued property and other taxes	1,880	1,976
Accrued professional fees	1,589	3,350
Contract with Customer, Liability	2,749	1,981
Dividends payable	1,304	1,310
Remediation reserves	9,945	11,274	$ 17,067
Other accrued liabilities	6,796	6,165
Total accrued liabilities	$ 38,222	$ 37,347

Contingencies Remediation Liabi

Contingencies Remediation Liability (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018	Dec. 31, 2017
Loss Contingencies [Line Items]
Accrued Environmental Loss Contingencies, Current	$ 9,945	$ 11,274	$ 17,067
Accrual for Environmental Loss Contingencies, Charges to Expense for New Losses	323	1,182
Accrual for Environmental Loss Contingencies Payments, Net of Reimbursements	(1,645)	(6,967)
Accrual for Environmental Loss Contingencies, Foreign Currency Translation Gain (Loss)	$ (7)	$ (8)

Debt - Long-Term Debt (Details)

Debt - Long-Term Debt (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	Feb. 12, 2019	May 23, 2016
Long-term debt
Total credit facility	$ 300,000		$ 300,000
Amount available	185,500		185,500		$ 248,060
Long-term Line of Credit, Noncurrent	112,700		112,700		50,000
Letters of Credit Outstanding, Amount	1,800		1,800		1,940
Amortization of Debt Issuance Costs	42	$ 46	121	$ 139
Line of Credit | Revolving Credit Facility Due 2024
Long-term debt
Total credit facility					$ 300,000	$ 300,000	$ 300,000
Line of Credit Facility Contingent Increase to Maximum Borrowing Capacity						$ 150,000
Long-term Line of Credit, Noncurrent	$ 112,700		$ 112,700
Weighted-average interest rate	3.41%		3.41%		3.10%
Commitment fee percentage per annum			0.20%		0.20%
Line of Credit | Revolving Credit Facility [Member]
Long-term debt
Long-term Line of Credit, Noncurrent					$ 50,000

Debt - Narratives (Details)

Debt - Narratives (Details) - USD ($) $ in Thousands	Feb. 12, 2019	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	May 23, 2016
Line of Credit Facility
Line of credit maximum borrowing amount		$ 300,000		$ 300,000
Debt amortization expense		42	$ 46	121	$ 139
Long-term Line of Credit, Noncurrent		112,700		$ 112,700		$ 50,000
Line of Credit | Revolving Credit Facility Due 2024
Line of Credit Facility
Debt instrument, term	5 years
Line of credit maximum borrowing amount	$ 300,000					$ 300,000	$ 300,000
Line of credit facility contingent increase to maximum borrowing capacity	150,000
Commitment fee percentage per annum				0.20%		0.20%
Long-term Line of Credit, Noncurrent		$ 112,700		$ 112,700
Line of Credit | Revolving Credit Facility Due 2024 Swingline Sublimit
Line of Credit Facility
Line of credit maximum borrowing amount	15,000
Line of Credit | Revolving Credit Facility Due 2024 Letter Of Credit Sublimit
Line of Credit Facility
Line of credit maximum borrowing amount	$ 10,000
Minimum | Line of Credit | Revolving Credit Facility Due 2024
Line of Credit Facility
Commitment fee percentage per annum	0.20%
Maximum | Line of Credit | Revolving Credit Facility Due 2024
Line of Credit Facility
Commitment fee percentage per annum	0.30%

Derivative Financial Instrume_3

Derivative Financial Instruments - Narratives (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017
Derivative
Unrealized Gain (Loss) on Foreign Currency Derivatives, Net, before Tax	$ 452	$ 867
Foreign exchange derivative
Derivative
Derivative Asset	463
Derivative Liability	68
Cash Flow Hedge | Designated As Hedging | Foreign currency forward contracts
Derivative
Foreign currency cash flow hedge gain to be reclassified during next 12 months	432
Derivative, notional amount	11,738
Derivative Asset	395
Derivative Liability			$ 393	$ (742)
Cash Flow Hedge | Designated As Hedging | Interest rate swap
Derivative
Interest rate cash flow hedge gain (loss) to be reclassified during next 12 months	127
Derivative Asset	$ (372)		$ 945	$ 971

Derivative Financial Instrume_4

Derivative Financial Instruments - Fair Value of Derivative Instruments (Details) - Cash Flow Hedge - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018	Dec. 31, 2017
Interest rate swap | Other Current Assets [Member]
Derivative Liability
Derivative Asset	$ 127	$ 576
Interest rate swap | Other Noncurrent Assets [Member]
Derivative Liability
Derivative Asset	0	369
Interest rate swap | Other Noncurrent Liabilities [Member]
Derivative Liability
Derivative Liability	(498)	0
Foreign currency hedges | Other Current Assets [Member]
Derivative Liability
Derivative Asset	395	393
Designated as Hedging Instrument [Member] | Interest rate swap
Derivative Liability
Derivative Asset	(372)	945	$ 971
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	432
Derivative Liability
Derivative Liability		$ 393	$ (742)
Derivative Asset	$ 395

Derivative Financial Instrume_5

Derivative Financial Instruments - Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net	$ 426	$ 217	$ 1,054	$ 484
Foreign exchange derivative | Designated As Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	309	103	624	201
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net	309	103	624	200
Foreign exchange derivative | Net sales | Designated As Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	0	152
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net			0	115
Foreign exchange derivative | Cost of goods sold | Designated As Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	286	(52)
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net			562	88
Foreign exchange derivative | Selling, general and administrative expenses | Designated As Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	23	3
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net			62	(2)
Foreign exchange derivative | Other income and expenses | Designated As Hedging
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net			0	(1)
Derivative, Net Hedge Ineffectiveness Gain (Loss)	0	0
Interest rate swap | Interest expense | Designated As Hedging
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net	$ 117	$ 114	$ 430	$ 284

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive (Loss) Income - Summary of Components of Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Jun. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Foreign currency transaction loss
Foreign currency transaction gain (loss)	$ 2,473	$ 1,740		$ 2,828	$ (2,658)
AOCI Attributable to Parent, Net of Tax
Total accumulated other comprehensive (loss) income, beginning of period				(97,739)
Total accumulated other comprehensive (loss) income, end of period	(95,718)			(95,718)
Accumulated other comprehensive (loss) income
AOCI Attributable to Parent, Net of Tax
Total accumulated other comprehensive (loss) income, beginning of period	(95,903)	(75,862)		(97,739)	(78,960)
Gain (Loss) recognized in OCI, Net	(502)		$ 793	(228)	1,742
Gain (Loss) reclassified from AOCI to income, Net	687		989	2,249	3,138
Total accumulated other comprehensive (loss) income, end of period	(95,718)	(74,080)	(75,862)	(95,718)	(74,080)
Changes in fair market value of hedges
Changes in AOCI, Gross
Gross, beginning of the period	1,036	1,418		1,316	289
Other Comprehensive Income (Loss), before Reclassifications, before Tax	(529)		1,023	(181)	2,420
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	(426)		(217)	(1,054)	(485)
Gross, ending balance	81	2,224	1,418	81	2,224
Changes in AOCI, Income tax (benefit)
Income tax (benefit), beginning of period	(234)	(360)		(298)	(105)
Income tax (benefit), Gain (Loss) recognized in OCI	119		(231)	41	(547)
Income tax (benefit), Gain (Loss) reclassified from AOCI to income	96		49	238	110
Income tax (benefit), ending of period	(19)	(542)	(360)	(19)	(542)
AOCI Attributable to Parent, Net of Tax
Total accumulated other comprehensive (loss) income, beginning of period	802	1,058		1,018	184
Gain (Loss) recognized in OCI, Net	(410)		792	(140)	1,873
Gain (Loss) reclassified from AOCI to income, Net	(330)		(168)	(816)	(375)
Total accumulated other comprehensive (loss) income, end of period	62	1,682	1,058	62	1,682
Changes in unrealized pension cost
Changes in AOCI, Gross
Gross, beginning of the period	(129,810)	(127,055)		(132,454)	(130,096)
Other Comprehensive Income (Loss), before Reclassifications, before Tax	0		0	0	0
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	1,313		1,491	3,957	4,532
Gross, ending balance	(128,497)	(125,564)	(127,055)	(128,497)	(125,564)
Changes in AOCI, Income tax (benefit)
Income tax (benefit), beginning of period	35,297	52,152		35,893	52,837
Income tax (benefit), Gain (Loss) recognized in OCI	0		0	0	0
Income tax (benefit), Gain (Loss) reclassified from AOCI to income	(296)		(334)	(892)	(1,019)
Income tax (benefit), ending of period	35,001	51,818	52,152	35,001	51,818
AOCI Attributable to Parent, Net of Tax
Total accumulated other comprehensive (loss) income, beginning of period	(94,513)	(74,903)		(96,561)	(77,259)
Gain (Loss) recognized in OCI, Net	0		0	0	0
Gain (Loss) reclassified from AOCI to income, Net	1,017		1,157	3,065	3,513
Total accumulated other comprehensive (loss) income, end of period	(93,496)	(73,746)	(74,903)	(93,496)	(73,746)
Cumulative translation adjustment
Changes in AOCI, Gross
Gross, beginning of the period	(2,287)	(2,115)		(2,291)	(1,985)
Other Comprehensive Income (Loss), before Reclassifications, before Tax	(89)		1	(85)	(129)
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	0		0	0	0
Gross, ending balance	(2,376)	(2,114)	(2,115)	(2,376)	(2,114)
Changes in AOCI, Income tax (benefit)
Income tax (benefit), beginning of period	95	98		95	100
Income tax (benefit), Gain (Loss) recognized in OCI	(3)		0	(3)	(2)
Income tax (benefit), Gain (Loss) reclassified from AOCI to income	0		0	0	0
Income tax (benefit), ending of period	92	98	98	92	98
AOCI Attributable to Parent, Net of Tax
Total accumulated other comprehensive (loss) income, beginning of period	(2,192)	(2,017)		(2,196)	(1,885)
Gain (Loss) recognized in OCI, Net	(92)		1	(88)	(131)
Gain (Loss) reclassified from AOCI to income, Net	0		0	0	0
Total accumulated other comprehensive (loss) income, end of period	$ (2,284)	$ (2,016)	$ (2,017)	$ (2,284)	$ (2,016)

Shareholders' Equity - Summary

Shareholders' Equity - Summary of Share Count and Par Value Data Related to Shareholders' Equity (Details) - $ / shares	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017
Preferred Stock
Preferred stock, par value per share	$ 0	$ 0		$ 0
Preferred stock, shares authorized	25,000,000	25,000,000		25,000,000
Preferred stock, shares outstanding	0	0		0
Common Stock
Common stock, par value per share	$ 0	$ 0		$ 0
Common stock, shares authorized	75,000,000	75,000,000		75,000,000
Common stock, shares issued	56,924,737	56,924,737		56,786,849
Common stock, shares outstanding	32,601,889	32,601,889	33,087,281	32,750,727	32,938,466
Treasury stock
Treasury stock, shares held	24,322,848	24,322,848		24,036,122
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	0	20,273	1,538

Shareholders' Equity - Addition

Shareholders' Equity - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019	Sep. 30, 2018	Feb. 07, 2019
Stockholders' Equity Note [Abstract]
Treasury Shares Authorized to be Purchased				$ 25,000
Common stock repurchased, shares		286,726	0
Common stock repurchased, value		$ 8,045
Shares are available for future issuances	$ 17,522	$ 17,522
Antidilutive securities excluded from computation of earnings per share (shares)	0	20,273	1,538

Shareholders' Equity - Summar_2

Shareholders' Equity - Summary of Common Shares Outstanding (Details) - shares	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Roll forward of common shares outstanding
Balance at the beginning of the year	32,750,727	32,938,466
Restricted share issuances	137,888	148,815
Balance at the end of the period	32,601,889	33,087,281

Equity-Based Compensation - Sum

Equity-Based Compensation - Summary of Equity-Based Compensation Expense (Details) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019USD ($)plan$ / sharesshares	Sep. 30, 2018USD ($)	Sep. 30, 2019USD ($)plan$ / sharesshares	Sep. 30, 2018USD ($)	Dec. 31, 2018$ / sharesshares
Share-based Compensation
Number of Equity-Based Compensation Plans | plan	5		5
Restricted stock units			$ 3,950	$ 4,104
Allocated Share-based Compensation Expense, Net of Tax	$ 895	$ 1,485	3,057	3,177
Service-Based RSUs
Share-based Compensation
Restricted stock units	618	523	1,712	1,541
Performance-Based RSUs
Share-based Compensation
Restricted stock units	$ 486	1,258	$ 2,072	2,411
Cash Settled Awards
Share-based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number | shares	17,271		17,271		17,248
Restricted stock units	$ 53		$ 166	152
Restricted Stock Expense (Benefit)		137
RSUs
Share-based Compensation
Restricted stock units	1,157	1,918	3,950	4,104
Income tax benefit	$ 262	$ 433	$ 893	$ 927
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			15,899
Releasable - weighted average fair value | $ / shares	$ 13.79		$ 13.79
Granted - shares | shares			74,591
Forfeited - weighted average fair value | $ / shares			$ 27
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Released Number | shares			67,526
Granted - weighted average fair value | $ / shares			$ 28.78
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value | $ / shares	$ 19.43		19.43		$ 17.91
Converted - weighted average fair value | $ / shares			$ 19.97
Releasable - shares | shares	206,474		206,474
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number | shares	346,756		346,756		355,590

Equity-Based Compensation - S_2

Equity-Based Compensation - Summary of Equity-Based Compensation Expense related to Non-Vested RSUs (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2019USD ($)shares
Service-Based RSUs
Share-based Compensation
Unrecognized compensation cost	$ 1,607
Weighted average period	1 year 4 months 23 days
Performance-Based RSUs
Share-based Compensation
Unrecognized compensation cost	$ 3,159
Weighted average period	1 year 8 months 19 days
RSUs
Share-based Compensation
Unrecognized compensation cost	$ 4,766
Weighted average period	1 year 7 months 8 days
Two Thousand Fourteen Plan [Member]
Share-based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | shares	0

Equity-Based Compensation - S_3

Equity-Based Compensation - Summary of Status of Equity-Based Compensation Plans (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Summary of Status of Equity-Based Compensation Plans
Other accrued liabilities	$ 6,796	$ 6,165
2018 Plan
Summary of Status of Equity-Based Compensation Plans
Awards originally available	2,500,000
Shares outstanding	245,456
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Released Number	0
Awards available for grant	2,254,544
2014 Plan
Summary of Status of Equity-Based Compensation Plans
Awards originally available	1,500,000
Awards available for grant	0
2009 Plan
Summary of Status of Equity-Based Compensation Plans
Awards originally available	3,400,000
2004 Plan
Summary of Status of Equity-Based Compensation Plans
Awards originally available	6,500,000
RSUs | 2014 Plan
Summary of Status of Equity-Based Compensation Plans
Shares outstanding	418,199
RSUs | 2009 Plan
Summary of Status of Equity-Based Compensation Plans
Shares outstanding	92,600
RSUs | 2004 Plan
Summary of Status of Equity-Based Compensation Plans
Shares outstanding	35,952
RSUs | Directors' Plan
Summary of Status of Equity-Based Compensation Plans
Shares outstanding	5,522
Performance-Based Stock Options | 2018 Plan
Summary of Status of Equity-Based Compensation Plans
Stock options outstanding	0
Performance-Based Stock Options | 2014 Plan
Summary of Status of Equity-Based Compensation Plans
Awards originally available	350,000
Shares outstanding	250,000
Stock options outstanding	250,000
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	17,271	17,248
Other accrued liabilities	$ 263	$ 300
Officers, key employees, and non-employee directors | Service-Based RSUs
Share-based Compensation
Releasable - weighted average fair value	$ 13.79
Summary of Status of Equity-Based Compensation Plans
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number	346,756	355,590

Equity-Based Compensation - Per

Equity-Based Compensation - Performance-Based Stock Options (Details) - USD ($)	May 26, 2015	Sep. 30, 2019
Performance and Market-based Restricted Stock Units
Share-based Compensation
Attained by performance - weighted average fair value		$ 13.54
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

Equity-Based Compensation - S_4

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, 2019$ / sharesshares
Units
Outstanding at beginning of year - shares | shares	355,590
Granted - shares | shares	74,591
Released - shares | shares	(67,526)
Forfeited - shares | shares	(15,899)
Outstanding at end of year - shares | shares	346,756
Releasable - shares | shares	206,474
Weighted Average Grant Date Fair Value
Beginning of year - weighted average fair value | $ / shares	$ 17.91
Granted - weighted average fair value | $ / shares	28.78
Converted - weighted average fair value | $ / shares	19.97
Forfeited - weighted average fair value | $ / shares	27
End of year - weighted average fair value | $ / shares	19.43
Releasable - weighted average fair value | $ / shares	$ 13.79

Equity-Based Compensation - Sch

Equity-Based Compensation - Schedule of Performance-Based RSUs (Details) - shares	Sep. 30, 2019	Feb. 07, 2019	Feb. 16, 2018	Feb. 08, 2018	Feb. 09, 2017
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		65,642	31,820	34,478	71,188
Shared Based Compensation Maximum Potential Awards		131,285	63,640	68,956	142,376
Performance Shares [Member]
Share-based Compensation
Target Units Outstanding					13,556
Shared Based Compensation Maximum Potential Awards					13,556

Equity-Based Compensation Equit

Equity-Based Compensation Equity-Based Compensation - Performance and Market Based RSUs (Details) - $ / shares	9 Months Ended
	Sep. 30, 2019	Feb. 07, 2019
Performance Goal [Member]
Units
Target Units Outstanding		6,945
Shared Based Compensation Maximum Potential Awards		13,890
Performance and Market-based Restricted Stock Units
Units
Outstanding at beginning of year - shares	267,792
Granted - shares	82,103
Attained by performance - shares	60,779
Vested and released - shares	(160,889)
Forfeited - shares	(26,156)
Outstanding at end of year - shares	223,629
Maximum potential units outstanding at June 30, 2016 - shares	0
Weighted Average Grant Date Fair Value
Beginning of year - weighted average fair value	$ 21.44
Granted - weighted average fair value	30.98
Attained by performance - weighted average fair value	13.54
Vested and released - weighted average fair value	14.34
Forfeited - weighted average fair value	23.81
End of year - weighted average fair value	27.70
Maximum potential units outstanding at June 30, 2016 - weighted average fair value	$ 0

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Financial Liability Measured at Fair Value on a Recurring Basis (Details) - Designated As Hedging - Cash Flow Hedge - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018	Dec. 31, 2017
Interest rate swap
Recurring financial liability that was measured at carrying value
Realized gain (loss) on cash flow hedge	$ 430	$ (421)
Derivative Asset	(372)	945	$ 971
Foreign currency hedges
Recurring financial liability that was measured at carrying value
Derivative liability		(393)	$ 742
Realized gain (loss) on cash flow hedge	624	484
Derivative Asset	395
Recurring | Significant Other Observable Inputs (Level 2) | Interest rate swap
Recurring financial liability that was measured at carrying value
Derivative liability	372	(945)
Recurring | Significant Other Observable Inputs (Level 2) | Foreign currency hedges
Recurring financial liability that was measured at carrying value
Derivative liability		(393)
Derivative Asset	395
Recurring | Carrying Value | Interest rate swap
Recurring financial liability that was measured at carrying value
Derivative liability	372	(945)
Recurring | Carrying Value | Foreign currency hedges
Recurring financial liability that was measured at carrying value
Derivative liability		$ (393)
Derivative Asset	$ 395

Fair Value Measurements - Recon

Fair Value Measurements - Reconciliation of Recurring Financial Liability Related to Interest Rate Swaps (Details) - Designated As Hedging - Cash Flow Hedge - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Interest rate swap
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Cost of Hedge Net of Cash Received	$ (430)	$ 421
Reconciliation of the recurring financial derivatives
Beginning balance, derivative asset	945	971
Total gains/(losses) for the period:
Included in earnings	430	(421)
Included in other comprehensive income	(1,317)	(26)
Ending balance, derivative asset	(372)	945
Foreign currency hedges
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Cost of Hedge Net of Cash Received	(703)	(402)
Reconciliation of the recurring financial derivatives
Beginning balance, derivative liability	(393)	742
Total gains/(losses) for the period:
Included in earnings	624	484
Included in other comprehensive income	81	1,053
Ending balance, derivative liability		$ (393)
Ending balance, derivative asset	$ 395

Income Taxes - Schedule of Effe

Income Taxes - Schedule of Effective Income Tax Rate (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Tax Disclosure [Abstract]
Effective income tax rate	62.20%	28.90%	30.30%	29.70%

Leases Lease Cost (Details)

Leases Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Leases [Abstract]
Operating Lease, Expense	$ 1,128	$ 3,197
Short-term Lease Payments	43	292
Operating Leases, Rent Expense, Net	$ 1,171	$ 3,489

Leases Schedule of Future Min_2

Leases Schedule of Future Minimum Rental Payments for Operating Leases (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jan. 01, 2019
Leases [Abstract]
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months	$ 1,117
Lessee, Operating Lease, Liability, Payments, Due Year Two	4,420
Lessee, Operating Lease, Liability, Payments, Due Year Three	4,310
Lessee, Operating Lease, Liability, Payments, Due Year Four	4,116
Lessee, Operating Lease, Liability, Payments, Due Year Five	3,701
Lessee, Operating Lease, Liability, Payments, Due after Year Five	20,442
Lessee, Operating Lease, Liability, Payments, Due	38,106
Lessee, Operating Lease, Discount Value	(10,550)
Operating Lease, Liability	27,556	$ 24,792
Lessee, Operating Lease Payment on Extension Option	$ 5,266

Leases Operating Lease Disclosu

Leases Operating Lease Disclosure (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Leases [Abstract]
Operating Lease, Weighted Average Remaining Lease Term	9 years 3 months 7 days
Operating Lease, Liability, Current	$ 2,677		$ 0
Operating Lease, Liability, Noncurrent	24,879		$ 0
Operating Lease, Liability	$ 27,556	$ 24,792
Operating Lease, Weighted Average Discount Rate, Percent	6.81%
Operating Lease, Payments, Use	$ 2,887
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 2,961
Lessee, Operating Lease, Existence of Option to Extend [true false]	true
Lessee, Operating Lease, Existence of Option to Terminate [true false]	true

Business Combinations - Narrati

Business Combinations - Narratives (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2019USD ($)
Business Acquisition
Business Acquisition, Revenues stub period	$ 3,670
Business Acquisition, Net Earnings stub period	$ (1,086)

Business Combinations - Acquisi

Business Combinations - Acquisition (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Business Acquisition
Current assets	$ 7,212
Property, plant and equipment	2,502
Other assets	29
Business Acquisition, Goodwill, Expected Tax Deductible Amount	37,085
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	31,700
Fair Value of Assets Acquired	78,528
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	(2,773)
Net cash paid	$ 73,588	$ 0

Business Combinations Schedule

Business Combinations Schedule of Finite Lived Intangibles Acquired (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2019USD ($)
Customer lists/relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 29,900
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years
Technology and other intangibles
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 1,800
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years
Finite-Lived Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 31,700

Business Combinations Purchase

Business Combinations Purchase Price (Details) - USD ($)	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Purchase Price Allocation [Abstract]
Payments to Acquire Businesses, Net of Cash Acquired	$ 73,588,000	$ 0
Business Combination, Contingent Consideration, Liability	2,167,000
Business Combination, Consideration Transferred	75,755,000
Cash Acquired from Acquisition	$ 567,000