Rogers (ROG) 10-Q 30 Jul 20 2020 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2020	Jul. 27, 2020
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2020
Document Transition Report	false
Entity File Number	1-4347
Entity Registrant Name	ROGERS CORP
Entity Incorporation, State or Country Code	MA
Entity Tax Identification Number	06-0513860
Entity Address, Address Line One	2225 W. Chandler Blvd.
Entity Address, City or Town	Chandler
Entity Address, State or Province	AZ
Entity Address, Postal Zip Code	85224-6155
City Area Code	480
Local Phone Number	917-6000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		18,674,827
Entity Central Index Key	0000084748
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Amendment Flag	false
New York Stock Exchange
Entity Information [Line Items]
Title of 12(b) Security	Common Stock,
Entity Trading Symbol	ROG
Security Exchange Name	NYSE

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Net sales	$ 191,157	$ 242,852	$ 389,967	$ 482,650
Cost of sales	121,188	157,024	254,368	311,428
Gross margin	69,969	85,828	135,599	171,222
Selling, General and Administrative Expense	41,694	43,649	82,024	86,901
Research and Development Expense	7,295	7,843	15,100	15,452
Restructuring and impairment charges	0	1,083	0	1,905
Other operating (income) expense, net	(112)	40	(92)	951
Operating income	21,092	33,213	38,567	66,013
Equity income in unconsolidated joint ventures	1,022	1,742	2,240	2,579
Pension settlement charges	(55)	0	(55)	0
Other (expense) income, net	634	(1,401)	(152)	3
Interest expense, net	(1,779)	(2,038)	(2,986)	(3,976)
Income before income tax expense	20,914	31,516	37,614	64,619
Income tax expense	6,394	7,223	9,835	11,927
Net income	$ 14,520	$ 24,293	$ 27,779	$ 52,692
Basic earnings per share (in dollars per share)	$ 0.78	$ 1.31	$ 1.49	$ 2.84
Diluted earnings per share (in dollars per share)	$ 0.78	$ 1.30	$ 1.49	$ 2.82
Shares used in computing:
Basic earnings per share (in shares)	18,676	18,568	18,673	18,562
Diluted earnings per share (in shares)	18,681	18,730	18,686	18,711

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 14,520	$ 24,293	$ 27,779	$ 52,692
Foreign currency translation adjustment	5,629	2,182	(1,265)	(2,075)
Pension and other postretirement benefits:
Pension settlement benefits, net of tax (Note 4)	(48)	0	(48)	0
Actuarial net gain incurred, net of tax (Note 4)	626	0	626	0
Amortization of loss, net of tax (Note 4)	67	157	133	313
Derivative instrument designated as cash flow hedge:
Change in unrealized gain (loss) before reclassifications, net of tax (Note 4)	383	(810)	(866)	(1,204)
Unrealized gain reclassified into earnings, net of tax (Note 4)	(267)	(62)	(334)	(156)
Other comprehensive income (loss)	6,390	1,467	(1,754)	(3,122)
Comprehensive income	$ 20,910	$ 25,760	$ 26,025	$ 49,570

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL POSITION (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 298,742	$ 166,849
Accounts receivable, less allowance for doubtful accounts of $1,667 and $1,691	128,697	122,285
Contract assets	19,280	22,455
Inventories	124,747	132,859
Prepaid income taxes	3,801	4,524
Asbestos-related insurance receivables, current portion	4,292	4,292
Other current assets	11,131	10,838
Total current assets	590,690	464,102
Property, plant and equipment, net of accumulated depreciation of $361,541 and $341,119	263,051	260,246
Investments in unconsolidated joint ventures	16,907	16,461
Deferred income taxes	25,474	17,117
Goodwill	262,469	262,930
Other intangible assets, net of amortization	147,722	158,947
Pension assets	4,173	12,790
Asbestos-related insurance receivables, non-current portion	74,024	74,024
Other long-term assets	16,031	6,564
Total assets	1,400,541	1,273,181
Current liabilities
Accounts payable	35,616	33,019
Accrued employee benefits and compensation	25,230	29,678
Accrued income taxes payable	11,358	10,649
Asbestos-related liabilities, current portion	5,007	5,007
Other accrued liabilities	19,654	21,872
Total current liabilities	96,865	100,225
Borrowings under revolving credit facility	223,000	123,000
Pension and other postretirement benefits liabilities	1,625	1,567
Asbestos-related liabilities, non-current portion	80,696	80,873
Non-current income tax	14,554	10,423
Deferred income taxes	8,493	9,220
Other long-term liabilities	12,726	13,973
Commitments and contingencies (Note 10 and Note 12)
Shareholders’ equity
Capital stock - $1 par value; 50,000 authorized shares; 18,668 and 18,577 shares issued and outstanding	18,668	18,577
Additional paid-in capital	141,092	138,526
Retained earnings	851,481	823,702
Accumulated other comprehensive loss	(48,659)	(46,905)
Total shareholders' equity	962,582	933,900
Total liabilities and shareholders' equity	$ 1,400,541	$ 1,273,181

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL POSITION (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 1,667	$ 1,691
Accumulated depreciation	$ 361,541,000	$ 341,119,000
Capital Stock, par value (in dollars per share)	$ 1	$ 1
Capital Stock, authorized shares (shares)	50,000,000	50,000,000
Capital Stock, shares issued (shares)	18,668,000	18,577,000
Capital Stock, shares outstanding (shares)	18,668,000	18,577,000

CONDENSED CONSOLIDATED STATEM_5

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Operating Activities:
Net income	$ 27,779	$ 52,692
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	25,858	25,099
Equity compensation expense	7,022	6,143
Deferred income taxes	(8,976)	(2,536)
Equity in undistributed income of unconsolidated joint ventures	(2,240)	(2,579)
Dividends received from unconsolidated joint ventures	1,785	1,741
Pension settlement benefits	(63)	0
Pension and other postretirement benefits	(100)	(346)
Asbestos-related charges	0	67
Loss on sale or disposal of property, plant and equipment	53	276
Impairment charges	0	956
Provision (benefit) for doubtful accounts	54	(128)
Changes in assets and liabilities:
Accounts receivable	(6,623)	(12,747)
Contract assets	3,174	(2,845)
Inventories	7,910	(2,845)
Pension and postretirement benefit contributions	(244)	(11)
Other current assets	414	(1,211)
Accounts payable and other accrued expenses	(6,129)	3,653
Other, net	5,285	2,122
Net cash provided by operating activities	54,959	67,501
Investing Activities:
Capital expenditures	(18,150)	(24,026)
Proceeds from the sale of property, plant and equipment, net	0	9
Return of capital from unconsolidated joint ventures	0	2,625
Net cash used in investing activities	(18,150)	(21,392)
Financing Activities:
Proceeds from borrowings under revolving credit facility	150,000	0
Repayment of debt principal and finance lease obligations	(50,193)	(33,196)
Payments of taxes related to net share settlement of equity awards	(5,029)	(7,424)
Proceeds from the exercise of stock options, net	0	327
Proceeds from issuance of shares to employee stock purchase plan	664	594
Net cash provided by (used in) financing activities	95,442	(39,699)
Effect of exchange rate fluctuations on cash	(358)	(1,080)
Net increase (decrease) in cash and cash equivalents	131,893	5,330
Cash and cash equivalents at beginning of period	166,849	167,738
Cash and cash equivalents at end of period	298,742	173,068
Supplemental Disclosures:
Accrued capital additions	4,144	2,119
Interest, net of amounts capitalized	3,311	4,440
Income taxes	$ 15,644	$ 9,164

CONDENSED CONSOLIDATED STATEM_6

CONDENSED CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Capital Stock	Additional Paid-In Capital	Retained Earnings	Retained EarningsCumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Loss
Balance, beginning of period at Dec. 31, 2018		$ 18,395	$ 132,360	$ 776,403	$ (20)	$ (78,834)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued for vested restricted stock units, net of shares withheld for taxes		137	(7,561)
Stock options exercised		10	317
Shares issued for employee stock purchase plan		7	587
Shares issued to directors		10	(10)
Equity compensation expense			6,143
Net income	$ 52,692			52,692
Other comprehensive income (loss)	(3,122)					(3,122)
Balance, end of period at Jun. 30, 2019	897,514	18,559	131,836	829,075		(81,956)
Balance, beginning of period at Mar. 31, 2019		18,546	128,417	804,782	0	(83,423)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued for vested restricted stock units, net of shares withheld for taxes		4	(288)
Stock options exercised		2	40
Shares issued for employee stock purchase plan			7
Shares issued to directors		7	(7)
Equity compensation expense			3,667
Net income	24,293			24,293
Other comprehensive income (loss)	1,467					1,467
Balance, end of period at Jun. 30, 2019	$ 897,514	18,559	131,836	829,075		(81,956)
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201602Member
Balance, beginning of period at Dec. 31, 2019	$ 933,900	18,577	138,526	823,702	0	(46,905)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued for vested restricted stock units, net of shares withheld for taxes		85	(5,114)
Shares issued for employee stock purchase plan		6	658
Shares issued to directors		0
Equity compensation expense			7,022
Net income	27,779			27,779
Other comprehensive income (loss)	(1,754)					(1,754)
Balance, end of period at Jun. 30, 2020	962,582	18,668	141,092	851,481		(48,659)
Balance, beginning of period at Mar. 31, 2020		18,662	137,235	836,961	$ 0	(55,049)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued for vested restricted stock units, net of shares withheld for taxes		6	(38)
Equity compensation expense			3,895
Net income	14,520			14,520
Other comprehensive income (loss)	6,390					6,390
Balance, end of period at Jun. 30, 2020	$ 962,582	$ 18,668	$ 141,092	$ 851,481		$ (48,659)

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation As used herein, the terms “Company,” “Rogers,” “we,” “us,” “our” and similar terms mean Rogers Corporation and its consolidated subsidiaries, unless the context indicates otherwise. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (GAAP) for interim financial information. Accordingly, these statements do not include all of the information and footnotes required by GAAP for complete financial statements. In our opinion, the accompanying condensed consolidated financial statements include all normal recurring adjustments necessary for their fair presentation in accordance with GAAP. All significant intercompany balances and transactions have been eliminated. Interim results are not necessarily indicative of results for a full year. For further information regarding our accounting policies, refer to the audited consolidated financial statements and footnotes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2019. We assessed certain accounting matters that generally require consideration of forecasted financial information in context with the information reasonably available to us and the unknown future impacts of COVID-19 as of June 30, 2020 and through the date of this report. The accounting matters assessed included, but were not limited to, our allowance for doubtful accounts, equity compensation, the carrying value of our goodwill, other intangible assets as well as other long-lived assets, financial assets, valuation allowances for tax assets and revenue recognition.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The accounting guidance for fair value measurements establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value: • Level 1 – Quoted prices in active markets for identical assets or liabilities. • Level 2 – Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. • Level 3 – Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. As a result of our pension termination and settlement efforts in late 2019 and the first half of 2020, we have a pension surplus investment balance, which is now accounted for as an available-for-sale investment as of June 2020. For additional information regarding this balance, refer to “Note 11 – Pension Benefits and Other Postretirement Benefits.” Available-for-sale investments measured at fair value on a recurring basis, categorized by the level of inputs used in the valuation, were as follows: Available-for-Sale Investment at Fair Value as of June 30, 2020 (Dollars in thousands) Level 1 Level 2 Level 3 Total Pension surplus investment (1) $ — $ 9,744 $ — $ 9,744 (1) This balance was invested in a fund comprised of fixed income and short-term cash securities, and was recorded in the “Other long-term assets” line item in the condensed consolidated statements of financial position. As of June 30, 2020, the fair value of this investment approximated its carrying value. From time to time we enter into various instruments that require fair value measurement, including foreign currency contracts, copper derivative contracts and interest rate swaps. Derivative instruments measured at fair value on a recurring basis, categorized by the level of inputs used in the valuation, were as follows: Derivative Instruments at Fair Value as of June 30, 2020 (Dollars in thousands) Level 1 Level 2 Level 3 Total (1) Foreign currency contracts $ — $ (95) $ — $ (95) Copper derivative contracts $ — $ 1,541 $ — $ 1,541 Interest rate swap contract $ — $ (2,770) $ — $ (2,770) Derivative Instruments at Fair Value as of December 31, 2019 (Dollars in thousands) Level 1 Level 2 Level 3 Total (1) Foreign currency contracts $ — $ (6) $ — $ (6) Copper derivative contracts $ — $ 1,147 $ — $ 1,147 Interest rate swap contract $ — $ (1,254) $ — $ (1,254) (1) All balances were recorded in the “Other current assets” or “Other accrued liabilities” line items in the condensed consolidated statements of financial position, except the 2020 and 2019 interest rate swap balance, which was recorded in the “Other long-term liabilities” line item. For additional information on derivative contracts, refer to “Note 3 – Hedging Transactions and Derivative Financial Instruments.”

Hedging Transactions and Deriva

Hedging Transactions and Derivative Financial Instruments	6 Months Ended
	Jun. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Hedging Transactions and Derivative Financial Instruments	Hedging Transactions and Derivative Financial Instruments We are exposed to certain risks related to our ongoing business operations. The primary risks being managed through our use of derivative instruments are foreign currency exchange rate risk, commodity pricing risk (primarily related to copper) and interest rate risk. We do not use derivative instruments for trading or speculative purposes. The valuation of derivative contracts used to manage each of these risks is described below: • Foreign Currency – The fair value of any foreign currency option derivative is based upon valuation models applied to current market information such as strike price, spot rate, maturity date and volatility, and by reference to market values resulting from an over-the-counter market or obtaining market data for similar instruments with similar characteristics. • Commodity – The fair value of copper derivatives is computed using a combination of intrinsic and time value valuation models, which are collectively a function of five primary variables: price of the underlying instrument, time to expiration, strike price, interest rate and volatility. The intrinsic valuation model reflects the difference between the strike price of the underlying copper derivative instrument and the current prevailing copper prices in an over-the-counter market at period end. The time value valuation model incorporates changes in the price of the underlying copper derivative instrument, the time value of money, the underlying copper derivative instrument’s strike price and the remaining time to the underlying copper derivative instrument’s expiration date from the period end date. • Interest Rates – The fair value of interest rate swap instruments is derived by comparing the present value of the interest rate forward curve against the present value of the swap rate, relative to the notional amount of the swap. The net value represents the estimated amount we would receive or pay to terminate the agreements. Settlement amounts for an “in the money” swap would be adjusted down to compensate the counterparties for cost of funds, and the adjustment is directly related to the counterparties’ credit ratings. The guidance for the accounting and disclosure of derivatives and hedging transactions requires companies to recognize all of their derivative instruments as either assets or liabilities at fair value in the condensed consolidated statements of financial position. The accounting for changes in the fair value (i.e., gains or losses) of a derivative instrument depends on whether it has been designated and qualifies for hedge accounting treatment as defined under the applicable accounting guidance. For derivative instruments that are designated and qualify for hedge accounting treatment as cash flow hedges (i.e., hedging the exposure to variability in expected future cash flows that is attributable to a particular risk), the effective portion of the gain or loss on the derivative instrument is reported as a component of other comprehensive income (loss) in the condensed consolidated statements of comprehensive income (loss). This gain or loss is reclassified into earnings in the same line item of the condensed consolidated statements of operations associated with the forecasted transaction and in the same period or periods during which the hedged transaction affects earnings. As of June 30, 2020 and 2019, only our interest rate swap qualified for hedge accounting treatment as a cash flow hedge, and the hedge was highly effective. Foreign Currency During the three months ended June 30, 2020, we entered into U.S. dollar, Korean won, and euro forward contracts. We entered into these foreign currency forward contracts to mitigate certain global transactional exposures. These contracts do not qualify for hedge accounting treatment. As a result, any fair value adjustments required on these contracts are recorded in “Other (expense) income, net” in our condensed consolidated statements of operations in the period in which the adjustment occurred. As of June 30, 2020, the notional values of the remaining foreign currency forward contracts were as follows: Notional Values of Foreign Currency Derivatives USD/CNH $ 25,492,958 KRW/USD ₩ 11,961,700,000 EUR/USD € 8,018,710 Commodity As of June 30, 2020, we had 26 outstanding contracts to hedge exposure related to the purchase of copper in our Power Electronics Solutions (PES) and Advanced Connectivity Solutions (ACS) operating segments. These contracts are held with financial institutions and are intended to offset rising copper prices and do not qualify for hedge accounting treatment. As a result, any fair value adjustments required on these contracts are recorded in “Other (expense) income, net” in our condensed consolidated statements of operations in the period in which the adjustment occurred. As of June 30, 2020, the volume of our copper contracts outstanding was as follows: Volume of Copper Derivatives July 2020 - September 2020 201 metric tons per month October 2020 - December 2020 201 metric tons per month January 2021 - March 2021 256 metric tons per month April 2021 - June 2021 256 metric tons per month July 2021 - September 2021 171 metric tons per month Interest Rates In March 2017, we entered into an interest rate swap to hedge the variable interest rate on $75.0 million of our $450.0 million revolving credit facility. This transaction has been designated as a cash flow hedge and qualifies for hedge accounting treatment. For additional information regarding our revolving credit facility, refer to “Note 9 – Debt.” Effects on Financial Statements The impacts from our derivative instruments on the statement of operations and statements of comprehensive income (loss) were as follows: Three Months Ended Six Months Ended (Dollars in thousands) Financial Statement Line Item June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Foreign Currency Contracts Contracts not designated as hedging instruments Other (expense) income, net $ (27) $ 125 $ (555) $ (586) Copper Derivative Contracts Contracts not designated as hedging instruments Other (expense) income, net $ 964 $ (775) $ (171) $ (465) Interest Rate Swap Contract designated as hedging instrument Other comprehensive income (loss) $ 173 $ (1,113) $ (1,517) $ (1,745) We estimate approximately $1.7 million of pre-tax net losses currently reported in accumulated other comprehensive loss in the condensed consolidated statements of financial position will be reclassified into the condensed consolidated statements of operations within the next 12 months.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	6 Months Ended
	Jun. 30, 2020
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss The changes in accumulated other comprehensive loss by component were as follows: (Dollars and accompanying footnotes in thousands) Foreign Currency Translation Adjustments Pension and Other Postretirement Benefits (1) Derivative Instrument Designated as Cash Flow Hedge (2) Total Balance as of December 31, 2019 $ (35,478) $ (10,455) $ (972) $ (46,905) Other comprehensive income (loss) before reclassifications (1,265) 626 (866) (1,505) Amounts reclassified from accumulated other comprehensive loss — 85 (334) (249) Net current-period other comprehensive income (loss) (1,265) 711 (1,200) (1,754) Balance as of June 30, 2020 $ (36,743) $ (9,744) $ (2,172) $ (48,659) Balance as of December 31, 2018 $ (30,488) $ (48,700) $ 354 $ (78,834) Other comprehensive loss before reclassifications (2,075) — (1,204) (3,279) Amounts reclassified from accumulated other comprehensive loss — 313 (156) 157 Net current-period other comprehensive income (loss) (2,075) 313 (1,360) (3,122) Balance as of June 30, 2019 $ (32,563) $ (48,387) $ (1,006) $ (81,956) (1) Net of taxes of $2,172 and $2,368 as of June 30, 2020 and December 31, 2019, respectively. Net of taxes of $9,893 and $9,984 as of June 30, 2019 and December 31, 2018, respectively. (2) Net of taxes of $598 and $282 as of June 30, 2020 and December 31, 2019, respectively. Net of taxes of $278 and $(106) as of June 30, 2019 and December 31, 2018, respectively.

Inventories

Inventories	6 Months Ended
	Jun. 30, 2020
Inventory Disclosure [Abstract]
Inventories	Inventories Inventories, which are valued at the lower of cost or net realizable value, consisted of the following: (Dollars in thousands) June 30, 2020 December 31, 2019 Raw materials $ 59,832 $ 61,338 Work-in-process 27,561 30,043 Finished goods 37,354 41,478 Total inventories $ 124,747 $ 132,859

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	6 Months Ended
	Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets Goodwill The changes in the net carrying amount of goodwill by operating segment were as follows: (Dollars in thousands) Advanced Connectivity Solutions Elastomeric Material Solutions Power Electronics Solutions Other Total December 31, 2019 $ 51,694 $ 142,030 $ 66,982 $ 2,224 $ 262,930 Foreign currency translation adjustment — (598) 137 — $ (461) June 30, 2020 $ 51,694 $ 141,432 $ 67,119 $ 2,224 $ 262,469 Other Intangible Assets The gross and net carrying amounts, as well as the accumulated amortization of other intangible assets were as follows: June 30, 2020 December 31, 2019 (Dollars in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Customer relationships $ 149,180 $ 46,109 $ 103,071 $ 149,317 $ 39,018 $ 110,299 Technology 80,935 48,181 32,754 80,938 45,190 35,748 Trademarks and trade names 11,967 5,185 6,782 11,994 4,361 7,633 Covenants not to compete 1,340 666 674 1,340 505 835 Total definite-lived other intangible assets 243,422 100,141 143,281 243,589 89,074 154,515 Indefinite-lived other intangible asset 4,441 — 4,441 4,432 — 4,432 Total other intangible assets $ 247,863 $ 100,141 $ 147,722 $ 248,021 $ 89,074 $ 158,947 In the table above, gross carrying amounts and accumulated amortization may differ from prior periods due to foreign exchange rate fluctuations. Amortization expense was $7.6 million and $4.4 million for the three months ended June 30, 2020 and 2019, respectively, and was $11.2 million and $8.9 million for the six months ended June 30, 2020 and 2019, respectively. The estimated future amortization expense is $30.8 million for the remainder of 2020 and $12.3 million, $11.8 million, $11.2 million and $9.9 million for 2021, 2022, 2023 and 2024, respectively. The increase in amortization expense for the three and six months ended June 30, 2020, and decrease in forecasted amortization expense in future years, were due to the acceleration of amortization expense related to our Diversified Silicone Products, Inc. (DSP) customer relationships and trademarks and trade names definite-lived other intangible assets, which were both accelerated to be fully amortized by December 31, 2020. As part of our ongoing assessment of the useful lives of our definite-lived other intangible assets, we reviewed the deterioration of our DSP business and identified significant customer attrition, a sustained substantial decrease in net sales, as well as the planned phase-out of the DSP trademark and trade name by December 2020. Based on these events and circumstances, we concluded an adjustment to the remaining useful lives of our DSP customer relationships and trademarks and trade names definite-lived other intangible assets was warranted. The weighted average amortization period as of June 30, 2020, by definite-lived other intangible asset class, was as follows: Definite-Lived Other Intangible Asset Class Weighted Average Remaining Amortization Period Customer relationships 5.0 years Technology 4.0 years Trademarks and trade names 3.2 years Covenants not to compete 1.4 years Total definite-lived other intangible assets 4.7 years

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2020
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share Basic earnings per share is based on the weighted average number of common shares outstanding. Diluted earnings per share is based on the weighted average number of common shares outstanding and all dilutive potential common shares outstanding. The following table sets forth the computation of basic and diluted earnings per share: (Dollars and shares in thousands, except per share amounts) Three Months Ended Six Months Ended June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Numerator: Net income $ 14,520 $ 24,293 $ 27,779 $ 52,692 Denominator: Weighted-average shares outstanding - basic 18,676 18,568 18,673 18,562 Effect of dilutive shares 5 162 13 149 Weighted-average shares outstanding - diluted 18,681 18,730 18,686 18,711 Basic earnings per share $ 0.78 $ 1.31 $ 1.49 $ 2.84 Diluted earnings per share $ 0.78 $ 1.30 $ 1.49 $ 2.82

Capital Stock and Equity Compen

Capital Stock and Equity Compensation	6 Months Ended
	Jun. 30, 2020
Share-based Payment Arrangement, Noncash Expense [Abstract]
Capital Stock and Equity Compensation	Capital Stock and Equity Compensation Equity Compensation Performance-Based Restricted Stock Units As of June 30, 2020, we had performance-based restricted stock units from 2020, 2019, and 2018 outstanding. These awards generally cliff vest at the end of a three The outstanding awards have one measurement criterion: the three-year total shareholder return (TSR) on our capital stock as compared to that of a specified group of peer companies. The TSR measurement criterion of the awards is considered a market condition. As such, the fair value of this measurement criterion was determined on the grant date using a Monte Carlo simulation valuation model. We recognize compensation expense on all of these awards on a straight-line basis over the vesting period with no changes for final projected payout of the awards. We account for forfeitures as they occur. The following table sets forth the assumptions used in the Monte Carlo calculation for each material award granted in 2020 and 2019: February 12, 2020 June 3, 2019 February 7, 2019 Expected volatility 41.0% 39.7% 36.7% Expected term (in years) 2.9 2.6 2.9 Risk-free interest rate 1.41% 1.78% 2.43% Expected volatility – In determining expected volatility, we have considered a number of factors, including historical volatility. Expected term – We use the vesting period of the award to determine the expected term assumption for the Monte Carlo simulation valuation model. Risk-free interest rate – We use an implied “spot rate” yield on U.S. Treasury Constant Maturity rates as of the grant date for our assumption of the risk-free interest rate. Expected dividend yield – We do not currently pay dividends on our capital stock; therefore, a dividend yield of 0% was used in the Monte Carlo simulation valuation model. A summary of activity of the outstanding performance-based restricted stock units for the six months ended June 30, 2020 is presented below: Performance-Based Awards outstanding as of December 31, 2019 106,943 Awards granted 87,244 Stock issued (75,486) Awards forfeited (4,962) Awards outstanding as of June 30, 2020 113,739 We recognized $1.3 million and $1.1 million of compensation expense for performance-based restricted stock units for the three months ended June 30, 2020 and 2019, respectively. We recognized $2.7 million and $2.0 million of compensation expense for performance-based restricted stock units for the six months ended June 30, 2020 and 2019, respectively. Time-Based Restricted Stock Units As of June 30, 2020, we had time-based restricted stock unit awards from 2020, 2019, 2018 and 2017 outstanding. The outstanding awards all ratably vest on the first, second and third anniversaries of the original grant date. However, employees whose employment terminates during the measurement period due to death, disability, or, in certain cases, retirement may receive a pro-rata payout based on the number of days they were employed subsequent to the last grant anniversary date. Each time-based restricted stock unit represents a right to receive one share of Rogers’ capital stock at the end of the vesting period. The fair value of the award is determined by the market value of the underlying stock price at the grant date. We recognize compensation expense on all of these awards on a straight-line basis over the vesting period. We account for forfeitures as they occur. A summary of activity of the outstanding time-based restricted stock units for the six months ended June 30, 2020 is presented below: Time-Based Awards outstanding as of December 31, 2019 101,685 Awards granted 58,042 Stock issued (47,197) Awards forfeited (3,585) Awards outstanding as of June 30, 2020 108,945 We recognized $1.5 million and $1.4 million of compensation expense for time-based restricted stock units for the three months ended June 30, 2020 and 2019, respectively. We recognized $3.1 million and $2.9 million of compensation expense for time-based restricted stock units for the six months ended June 30, 2020 and 2019, respectively. Deferred Stock Units We grant deferred stock units to non-management directors. These awards are fully vested on the date of grant and the related shares are generally issued on the 13-month anniversary of the grant date unless the individual elects to defer the receipt of those shares. Each deferred stock unit results in the issuance of one share of Rogers’ capital stock. The grant of deferred stock units is typically done annually during the second quarter of each year. The fair value of the award is determined by the market value of the underlying stock price at the grant date. A summary of activity of the outstanding deferred stock units for the six months ended June 30, 2020 is presented below: Deferred Stock Units Awards outstanding as of December 31, 2019 7,150 Awards granted 9,400 Stock issued (5,100) Awards outstanding as of June 30, 2020 11,450 We recognized $1.0 million of compensation expense related to deferred stock units for the three and six months ended June 30, 2020, and $1.1 million of compensation expense for the three and six months ended June 30, 2019.

Debt

Debt	6 Months Ended
	Jun. 30, 2020
Debt Disclosure [Abstract]
Debt	Debt In February 2017, we entered into a secured five All obligations under the Third Amended Credit Agreement are guaranteed by each of our existing and future material domestic subsidiaries, as defined in the Third Amended Credit Agreement (the Guarantors). The obligations are also secured by a Third Amended and Restated Pledge and Security Agreement, dated as of February 17, 2017, entered into by us and the Guarantors which grants to the administrative agent, for the benefit of the lenders, a security interest, subject to certain exceptions, in substantially all of the non-real estate assets of the Guarantors. These assets include, but are not limited to, receivables, equipment, intellectual property, inventory, and stock in certain subsidiaries. All revolving loans are due on the maturity date, February 17, 2022. Borrowings under the Third Amended Credit Agreement can be made as alternate base rate loans or euro-currency loans. Alternate base rate loans bear interest at a base reference rate plus a spread of 37.5 to 75.0 basis points, depending on our leverage ratio. The base reference rate is the greatest of (a) the prime rate in effect on such day, (b) the Federal Reserve Bank of New York (NYFRB) rate in effect on such day plus ½ of 1% and (c) the adjusted LIBOR for a one month interest period in dollars on such day (or if such day is not a business day, the immediately preceding business day) plus 1%. Euro-currency loans bear interest based on adjusted LIBOR plus a spread of 137.5 to 175.0 basis points, depending on our leverage ratio. Based on our leverage ratio as of June 30, 2020, the spread was 150.0 basis points. In addition to interest payable on the principal amount of indebtedness outstanding from time to time under the Third Amended Credit Agreement, we are required to pay a quarterly fee of 20 to 30 basis points (based upon our leverage ratio) of the unused amount of the lenders’ commitments under the Third Amended Credit Agreement. The Third Amended Credit Agreement contains customary representations, warranties, covenants, mandatory prepayments and events of default under which our payment obligations may be accelerated. If an event of default occurs, the lenders may, among other things, terminate their commitments and declare all outstanding borrowings to be immediately due and payable together with accrued interest and fees. The financial covenants include requirements to maintain (1) a leverage ratio of no more than 3.25 to 1.00, subject to an election to increase the maximum leverage ratio to 3.50 to 1.00 for three fiscal quarters in connection with a permitted acquisition, and (2) an interest coverage ratio of no less than 3.00 to 1.00. The Third Amended Credit Agreement generally permits us to pay cash dividends to our shareholders, provided that (i) no default or event of default has occurred and is continuing or would result from the dividend payment and (ii) our leverage ratio does not exceed 2.75 to 1.00. If our leverage ratio exceeds 2.75 to 1.00, we may nonetheless make up to $20.0 million in restricted payments, including cash dividends, during the fiscal year, provided that no default or event of default has occurred and is continuing or would result from the payments. Our leverage ratio did not exceed 2.75 to 1.00 as of June 30, 2020. In March 2017, we entered into an interest rate swap to hedge the variable interest rate on $75.0 million of our $450.0 million revolving credit facility. We borrowed $150.0 million under our revolving credit facility as a precautionary measure in order to increase our cash position and preserve financial flexibility given current uncertainty in the global markets resulting from the COVID-19 pandemic, during the three months ended March 31, 2020. We did not borrow anything further under our revolving credit facility during the three months ended June 30, 2020. We are not required to make any quarterly principal payments under the Third Amended Credit Agreement. However, we made a $50.0 million discretionary principal payment on our revolving credit facility during the three months ended June 30, 2020. We had $223.0 million in outstanding borrowings under our revolving credit facility as of June 30, 2020. We made a $125.0 million discretionary principal payment on our revolving credit facility on July 29, 2020, reducing our outstanding borrowings under our revolving credit facility to $98.0 million as of our filing date. We incurred interest expense on our outstanding debt, net of the impacts of our interest rate swap, of $1.7 million and $2.1 million for the three months ended June 30, 2020 and 2019, respectively, and $2.9 million and $4.2 million for the six months ended June 30, 2020, and 2019, respectively. We incurred immaterial unused commitment fees for each of the three- and six-month periods ended June 30, 2020 and 2019. We had $0.9 million and $1.2 million of outstanding line of credit issuance costs as of June 30, 2020 and December 31, 2019, respectively, which will be amortized over the life of the Third Amended Credit Agreement. We recognized an immaterial amount of amortization expense for each of the three- and six-month periods ended June 30, 2020 and 2019, related to these deferred costs.

Leases

Leases	6 Months Ended
	Jun. 30, 2020
Leases [Abstract]
Leases	Leases We have a finance lease obligation related to our manufacturing facility in Eschenbach, Germany. Under the terms of the lease agreement, we have an option to purchase the property upon the expiration of the lease in 2021 at a price which is the greater of (i) the then-current market value or (ii) the residual book value of the land including the buildings and installations thereon. Our finance lease obligation related to this facility was $4.4 million and $4.5 million as of June 30, 2020 and December 31, 2019, respectively. The finance lease right-of-use asset balance for this facility was $6.1 million and $6.3 million as of June 30, 2020 and December 31, 2019, respectively. Accumulated amortization related to this finance lease right-of-use asset was $3.9 million and $3.8 million as of June 30, 2020 and December 31, 2019, respectively. The aggregate of all other finance lease obligations, finance lease right-of-use assets and related accumulated amortization, were immaterial as of June 30, 2020 and December 31, 2019. Amortization expense related to our finance lease right-of-use assets, which is primarily included in the “Cost of sales” line item of the condensed consolidated statements of operations, was immaterial for each of the three- and six-month periods ended June 30, 2020 and 2019. Interest expense related to our finance lease obligations, which is included in the “Interest expense, net” line item of the condensed consolidated statements of operations, was immaterial for each of the three- and six-month periods ended June 30, 2020 and 2019. Payments made on the principal portion of our finance lease obligations were immaterial for each of the three- and six-month periods ended June 30, 2020 and 2019. We have operating leases primarily related to building space and vehicles. Renewal options are included in the lease term to the extent we are reasonably certain to exercise the option. The exercise of lease renewal options is at our sole discretion. We account for lease components separately from non-lease components. The incremental borrowing rate represents our ability to borrow on a collateralized basis over a similar lease term. Our expenses and payments for operating leases were as follows: Three Months Ended Six Months Ended (Dollars in thousands) June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Operating leases expense $ 694 $ 775 $ 1,422 $ 1,493 Short-term leases expense $ 107 $ 43 $ 230 $ 82 Payments on operating lease obligations $ 722 $ 760 $ 1,468 $ 1,524 Our assets and liabilities balances related to finance and operating leases reflected in the condensed consolidated statements of financial position were as follows: (Dollars in thousands) Location in Statements of Financial Position June 30, 2020 December 31, 2019 Finance lease right-of-use assets Property, plant and equipment, net $ 6,125 $ 6,280 Operating lease right-of-use assets Other long-term assets $ 4,643 $ 4,656 Finance lease obligations, current portion Other accrued liabilities $ 4,350 $ 400 Finance lease obligations, non-current portion Other long-term liabilities $ — $ 4,140 Total finance lease obligations $ 4,350 $ 4,540 Operating lease obligations, current portion Other accrued liabilities $ 2,326 $ 2,343 Operating lease obligations, non-current portion Other long-term liabilities $ 2,339 $ 2,334 Total operating lease obligations $ 4,665 $ 4,677 Net Future Minimum Lease Payments The following table includes future minimum lease payments under finance and operating leases together with the present value of the net future minimum lease payments as of June 30, 2020: Finance Operating (Dollars in thousands) Leases Signed Less: Leases Not Yet Commenced Total Leases Leases Signed Less: Leases Not Yet Commenced Total Leases 2020 $ 266 $ — $ 266 $ 1,362 $ (11) $ 1,351 2021 4,445 (235) 4,210 1,970 (29) 1,941 2022 235 (235) — 1,063 (29) 1,034 2023 211 (211) — 433 (18) 415 2024 — — — 199 — 199 Thereafter — — — 5 — 5 Total lease payments 5,157 (681) 4,476 5,032 (87) 4,945 Less: Interest (212) 86 (126) (285) 5 (280) Present Value of Net Future Minimum Lease Payments $ 4,945 $ (595) $ 4,350 $ 4,747 $ (82) $ 4,665 The following table includes information regarding the lease term and discount rates utilized in the calculation of the present value of net future minimum lease payments: Finance Operating Weighted Average Remaining Lease Term 1.0 year 2.5 years Weighted Average Discount Rate 3.00% 4.97%
Leases	Leases We have a finance lease obligation related to our manufacturing facility in Eschenbach, Germany. Under the terms of the lease agreement, we have an option to purchase the property upon the expiration of the lease in 2021 at a price which is the greater of (i) the then-current market value or (ii) the residual book value of the land including the buildings and installations thereon. Our finance lease obligation related to this facility was $4.4 million and $4.5 million as of June 30, 2020 and December 31, 2019, respectively. The finance lease right-of-use asset balance for this facility was $6.1 million and $6.3 million as of June 30, 2020 and December 31, 2019, respectively. Accumulated amortization related to this finance lease right-of-use asset was $3.9 million and $3.8 million as of June 30, 2020 and December 31, 2019, respectively. The aggregate of all other finance lease obligations, finance lease right-of-use assets and related accumulated amortization, were immaterial as of June 30, 2020 and December 31, 2019. Amortization expense related to our finance lease right-of-use assets, which is primarily included in the “Cost of sales” line item of the condensed consolidated statements of operations, was immaterial for each of the three- and six-month periods ended June 30, 2020 and 2019. Interest expense related to our finance lease obligations, which is included in the “Interest expense, net” line item of the condensed consolidated statements of operations, was immaterial for each of the three- and six-month periods ended June 30, 2020 and 2019. Payments made on the principal portion of our finance lease obligations were immaterial for each of the three- and six-month periods ended June 30, 2020 and 2019. We have operating leases primarily related to building space and vehicles. Renewal options are included in the lease term to the extent we are reasonably certain to exercise the option. The exercise of lease renewal options is at our sole discretion. We account for lease components separately from non-lease components. The incremental borrowing rate represents our ability to borrow on a collateralized basis over a similar lease term. Our expenses and payments for operating leases were as follows: Three Months Ended Six Months Ended (Dollars in thousands) June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Operating leases expense $ 694 $ 775 $ 1,422 $ 1,493 Short-term leases expense $ 107 $ 43 $ 230 $ 82 Payments on operating lease obligations $ 722 $ 760 $ 1,468 $ 1,524 Our assets and liabilities balances related to finance and operating leases reflected in the condensed consolidated statements of financial position were as follows: (Dollars in thousands) Location in Statements of Financial Position June 30, 2020 December 31, 2019 Finance lease right-of-use assets Property, plant and equipment, net $ 6,125 $ 6,280 Operating lease right-of-use assets Other long-term assets $ 4,643 $ 4,656 Finance lease obligations, current portion Other accrued liabilities $ 4,350 $ 400 Finance lease obligations, non-current portion Other long-term liabilities $ — $ 4,140 Total finance lease obligations $ 4,350 $ 4,540 Operating lease obligations, current portion Other accrued liabilities $ 2,326 $ 2,343 Operating lease obligations, non-current portion Other long-term liabilities $ 2,339 $ 2,334 Total operating lease obligations $ 4,665 $ 4,677 Net Future Minimum Lease Payments The following table includes future minimum lease payments under finance and operating leases together with the present value of the net future minimum lease payments as of June 30, 2020: Finance Operating (Dollars in thousands) Leases Signed Less: Leases Not Yet Commenced Total Leases Leases Signed Less: Leases Not Yet Commenced Total Leases 2020 $ 266 $ — $ 266 $ 1,362 $ (11) $ 1,351 2021 4,445 (235) 4,210 1,970 (29) 1,941 2022 235 (235) — 1,063 (29) 1,034 2023 211 (211) — 433 (18) 415 2024 — — — 199 — 199 Thereafter — — — 5 — 5 Total lease payments 5,157 (681) 4,476 5,032 (87) 4,945 Less: Interest (212) 86 (126) (285) 5 (280) Present Value of Net Future Minimum Lease Payments $ 4,945 $ (595) $ 4,350 $ 4,747 $ (82) $ 4,665 The following table includes information regarding the lease term and discount rates utilized in the calculation of the present value of net future minimum lease payments: Finance Operating Weighted Average Remaining Lease Term 1.0 year 2.5 years Weighted Average Discount Rate 3.00% 4.97%

Pension Benefits and Other Post

Pension Benefits and Other Postretirement Benefits	6 Months Ended
	Jun. 30, 2020
Retirement Benefits [Abstract]
Pension Benefit and Other Postretirement Benefits	Pension Benefits and Other Postretirement Benefits Pension and Other Postretirement Benefit Plans As of December 31, 2019, we had two qualified noncontributory defined benefit pension plans. In June 2020, we completed the remaining settlement efforts for the Rogers Corporation Defined Benefit Pension Plan (following its merger with the Hourly Employees Pension Plan of Arlon LLC, Microwave Material and Silicone Technologies Divisions, Bear, Delaware (collectively, the Merged Plan)), which had been terminated and substantially settled in late 2019. As of June 30, 2020, only the Rogers Corporation Employees’ Pension Plan (the Union Plan), which was frozen and ceased accruing benefits, remained. There are no plans to terminate the Union Plan. Additionally, we sponsor other postretirement benefit plans, including multiple fully insured or self-funded medical plans and life insurance plans for certain retirees. The measurement date for all plans is December 31 st for each respective plan year. Pension Plan Termination & Settlement During the second quarter of 2019, following receipt of a determination letter from the Internal Revenue Service (IRS), we amended the Merged Plan to (a) terminate the Merged Plan (subject to discretionary approval by our Chief Executive Officer) and (b) add a lump sum distribution option in connection with the termination of the Merged Plan, if approved. We subsequently provided participants of the Merged Plan an option to elect either a lump sum distribution or an annuity. On October 17, 2019, our Chief Executive Officer approved the termination of the Merged Plan. A group annuity contract was purchased with an insurance company for all participants who did not elect a lump sum distribution, for $123.3 million, with an initial cash settlement date of October 24, 2019, and a true-up cash settlement date of June 1, 2020. The insurance company became responsible for administering and paying pension benefit payments effective January 1, 2020. Lump sum distributions of $38.9 million were paid out prior to December 31, 2019. The Merged Plan paid an additional $1.3 million of monthly pension benefit payments subsequent to the annuity purchase date during the transition period ending December 31, 2019. In addition, we recorded a total non-cash pre-tax settlement charge in connection with the termination of the Merged Plan of $53.2 million during the fourth quarter of 2019, as well as an immaterial non-cash pre-tax settlement benefit during the second quarter of 2020. This net settlement amount recognized included the immediate recognition into expense of the related unrecognized losses within “Accumulated other comprehensive loss” on the consolidated statements of financial position as of the plan termination date. The pension settlement charge during the fourth quarter of 2019 was recognized in the “Pension settlement charges” line item in the consolidated statements of operations, and the pension settlement benefit during the second quarter of 2020 was recognized in the “Pension settlement charges” line item in the condensed consolidated statements of operations. As of June 30, 2020, the remaining pension surplus investment balance was approximately $9.7 million. We plan on using a portion of the funds to pay plan expenses, and moving the remainder funds from the pension trust to a defined contribution plan trust, where they will be used to fund certain employer contributions and pay plan expenses. On July 27, 2020, we transferred $7.4 million of the pension surplus investment balance to a suspense account held within a trust for the Rogers Employee Savings and Investment Plan, a 401(k) plan for domestic employees. Components of Net Periodic Benefit (Credit) Cost The components of net periodic benefit (credit) cost were as follows: Pension Benefits Other Postretirement Benefits Three Months Ended Six Months Ended Three Months Ended Six Months Ended June 30, June 30, June 30, June 30, (Dollars in thousands) 2020 2019 2020 2019 2020 2019 2020 2019 Service cost $ — $ — $ — $ — $ 17 $ 18 $ 34 $ 36 Interest cost 231 1,785 462 3,569 10 15 20 30 Expected return of plan assets (393) (2,192) (786) (4,384) — — — — Amortization of prior service credit — — — — (28) (253) (56) (506) Amortization of net loss 114 456 228 910 — — — — Settlement benefit (63) — (63) — — — — — Net periodic benefit (credit) cost $ (111) $ 49 $ (159) $ 95 $ (1) $ (220) $ (2) $ (440) Employer Contributions There were no required or voluntary contributions made to our Merged Plan for the three and six-month periods ended June 30, 2020 and 2019. Additionally, there were no required or voluntary contributions made to our Union Plan for the three and six-month periods ended June 30, 2020 and 2019, and we are not required to make additional contributions to this plan for the remainder of 2020. As there is no funding requirement for the other postretirement benefit plans, we funded these benefit payments as incurred, which were immaterial for each of the three and six-month periods ended June 30, 2020 and 2019, using cash from operations.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies We are currently engaged in the following material environmental and legal proceedings: Voluntary Corrective Action Program Our location in Rogers, Connecticut is part of the Connecticut Voluntary Corrective Action Program (VCAP). As part of this program, we partnered with the Connecticut Department of Energy and Environmental Protection (CT DEEP) to determine the corrective actions to be taken at the site related to contamination issues. We evaluated this matter and completed internal due diligence work related to the site in the fourth quarter of 2015. Remediation activities on the site are ongoing and are recorded as reductions to the accrual as they are incurred. We incurred $1.7 million of aggregate remediation costs through June 30, 2020, and the accrual for future remediation efforts is $1.0 million. Asbestos Overview We, like many other industrial companies, have been named as a defendant in a number of lawsuits filed in courts across the country by persons alleging personal injury from exposure to products containing asbestos. We have never mined, milled, manufactured or marketed asbestos; rather, we made and provided to industrial users a limited number of products that contained encapsulated asbestos, but we stopped manufacturing these products in the late 1980s. Most of the claims filed against us involve numerous defendants, sometimes as many as several hundred. The following table summarizes the change in number of asbestos claims outstanding for the six months ended June 30, 2020: Asbestos Claims Claims outstanding as of January 1, 2020 592 New claims filed 47 Pending claims concluded (1) (83) Claims outstanding as of June 30, 2020 556 (1) For the six months ended June 30, 2020, 69 claims were dismissed and 14 claims were settled. Settlements totaled approximately $2.4 million for the six months ended June 30, 2020. Impact on Financial Statements We recognize a liability for asbestos-related contingencies that are probable of occurrence and reasonably estimable. In connection with the recognition of liabilities for asbestos-related matters, we record asbestos-related insurance receivables that are deemed probable. The liability projection period covers all current and future indemnity and defense costs through 2064, which represents the expected end of our asbestos liability exposure with no further ongoing claims expected beyond that date. This conclusion was based on our history and experience with the claims data, the diminished volatility and consistency of observable claims data, the period of time that has elapsed since we stopped manufacturing products that contained encapsulated asbestos and an expected downward trend in claims due to the average age of our claimants, which is approaching the average life expectancy. To date, the indemnity and defense costs of our asbestos-related product liability litigation have been substantially covered by insurance. Although we have exhausted coverage under some of our insurance policies, we believe that we have applicable primary, excess and/or umbrella coverage for claims arising with respect to most of the years during which we manufactured and marketed asbestos-containing products. In addition, we have entered into a cost sharing agreement with most of our primary, excess and umbrella insurance carriers to facilitate the ongoing administration and payment of claims covered by the carriers. The cost sharing agreement may be terminated by any party, but will continue until a party elects to terminate it. As of the filing date for this report, the agreement has not been terminated, and no carrier had informed us it intended to terminate the agreement. We expect to continue to exhaust individual primary, excess and umbrella coverages over time, and there is no assurance that such exhaustion will not accelerate due to additional claims, damages and settlements or that coverage will be available as expected. We are responsible for uninsured indemnity and defense costs, and we incurred an immaterial amount of expenses for each of the three- and six-month periods ended June 30, 2020 and 2019, respectively, related to such costs. The amounts recorded for the asbestos-related liability and the related insurance receivables are based on facts known at the time and a number of assumptions. However, projecting future events, such as the number of new claims to be filed each year, the average cost of disposing of such claims, the length of time it takes to dispose of such claims, coverage issues among insurers and the continuing solvency of various insurance companies, as well as the numerous uncertainties surrounding asbestos litigation in the United States, could cause the actual liability and insurance recoveries for us to be higher or lower than those projected or recorded. Changes recorded in the estimated liability and estimated insurance recovery based on projections of asbestos litigation and corresponding insurance coverage, result in the recognition of expense or income. Our projected asbestos-related liabilities and insurance receivables were as follows: (Dollars in thousands) June 30, 2020 December 31, 2019 Asbestos-related liabilities $ 85,703 $ 85,880 Asbestos-related insurance receivables $ 78,316 $ 78,316 General In addition to the above issues, the nature and scope of our business brings us in regular contact with the general public and a variety of businesses and government agencies. Such activities inherently subject us to the possibility of litigation, including environmental and product liability matters that are defended and handled in the ordinary course of business. We have established accruals for matters for which management considers a loss to be probable and reasonably estimable. It is the opinion of management that facts known at the present time do not indicate that such litigation will have a material adverse impact on our results of operations, financial position or cash flows.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Our effective income tax rate was 30.6% and 22.9% for the three months ended June 30, 2020 and 2019, respectively. The increase from the second quarter of 2019 was primarily due to the increase in current quarter accruals of reserves for uncertain tax positions and higher tax impact on unremitted foreign earnings and profits, partially offset by the beneficial impact of changes in valuation allowance related to research and development (R&D) credits, pretax mix across jurisdictions with disparate tax rates and the international provisions from the U.S. tax reform enacted in 2017. Our effective income tax rate was 26.1% and 18.5% for the six months ended June 30, 2020 and 2019, respectively. The increase from the first half of 2019 was primarily due to the increase in current quarter accruals of reserves for uncertain tax positions, the decrease in excess tax deductions on stock-based compensation and higher tax impact on unremitted foreign earnings and profits, partially offset by the beneficial impact of changes in valuation allowance related to R&D credits and pretax mix across jurisdictions with disparate tax rates. The total amount of unrecognized tax benefits as of June 30, 2020 was $14.2 million, of which $13.8 million would affect our effective tax rate if recognized. We recognize interest and penalties related to unrecognized tax benefits through income tax expense. As of June 30, 2020, we had $0.9 million accrued for the payment of interest. We are subject to taxation in the U.S. and various state and foreign jurisdictions. With few exceptions, we are no longer subject to examinations by tax authorities for years prior to 2015.

Operating Segment Information

Operating Segment Information	6 Months Ended
	Jun. 30, 2020
Segment Reporting [Abstract]
Operating Segment Information	Operating Segment Information Our reporting structure is comprised of the following strategic operating segments: ACS, Elastomeric Material Solutions (EMS) and PES. The remaining operations, which represent our non-core businesses, are reported in the Other operating segment. We believe this structure aligns our external reporting presentation with how we currently manage and view our business internally. Our ACS operating segment designs, develops, manufactures and sells circuit materials and solutions enabling high-performance and high-reliability connectivity for applications in wireless infrastructure (e.g., power amplifiers, antennas and small cells), automotive (e.g., ADAS, telematics and thermal solutions), aerospace and defense (e.g. antenna systems, communication systems and phased array radar systems), connected devices (e.g., mobile internet devices and thermal solutions) and wired infrastructure (e.g., computing and IP infrastructure) markets. Our EMS operating segment designs, develops, manufactures and sells engineered material solutions for a wide variety of applications and markets. These include polyurethane and silicone materials used in cushioning, gasketing and sealing, and vibration management applications for general industrial, portable electronics, automotive, electric and hybrid electric vehicles (EV/HEV), mass transit, aerospace and defense, footwear and impact mitigation and printing markets; customized silicones used in flex heater and semiconductor thermal applications for general industrial, portable electronics, automotive, EV/HEV, mass transit, aerospace and defense and medical markets; polytetrafluoroethylene and ultra-high molecular weight polyethylene materials used in wire and cable protection, electrical insulation, conduction and shielding, hose and belt protection, vibration management, cushioning, gasketing and sealing, and venting applications for general industrial, automotive, EV/HEV and aerospace and defense markets. Our PES operating segment designs, develops, manufactures and sells ceramic substrate materials, busbars and cooling solutions for a variety of applications in EV/HEV, mass transit, clean energy (i.e. variable frequency drives, renewable energy), general industrial, aerospace and defense and wired infrastructure markets. We sell our ceramic substrate materials and cooling solutions under the curamik ® trade name and our busbars under the ROLINX ® trade name. Our Other operating segment consists of elastomer components for applications in general industrial market, as well as elastomer floats for level sensing in fuel tanks, motors, and storage tanks applications in the general industrial and automotive markets. We sell our elastomer components under our ENDUR ® trade name and our floats under our NITROPHYL ® trade name. The following table presents a disaggregation of revenue from contracts with customers and other pertinent financial information, for the periods indicated; inter-segment sales have been eliminated from the net sales data: (Dollars in thousands) Advanced Connectivity Solutions Elastomeric Material Solutions Power Electronics Solutions Other Total Three Months Ended June 30, 2020 Net sales - recognized over time $ — $ 2,667 $ 45,060 $ 3,077 $ 50,804 Net sales - recognized at a point in time 70,940 68,959 160 294 140,353 Total net sales $ 70,940 $ 71,626 $ 45,220 $ 3,371 $ 191,157 Operating income $ 15,624 $ 2,995 $ 1,446 $ 1,027 $ 21,092 Three Months Ended June 30, 2019 Net sales - recognized over time $ — $ 2,965 $ 51,319 $ 4,313 $ 58,597 Net sales - recognized at a point in time 92,529 90,929 343 454 184,255 Total net sales $ 92,529 $ 93,894 $ 51,662 $ 4,767 $ 242,852 Operating income (loss) $ 18,458 $ 15,326 $ (1,884) $ 1,313 $ 33,213 Six Months Ended June 30, 2020 Net sales - recognized over time $ — $ 5,494 $ 91,461 $ 6,727 $ 103,682 Net sales - recognized at a point in time 135,493 149,658 480 654 286,285 Total net sales $ 135,493 $ 155,152 $ 91,941 $ 7,381 $ 389,967 Operating income $ 21,086 $ 14,512 $ 762 $ 2,207 $ 38,567 Six Months Ended June 30, 2019 Net sales - recognized over time $ — $ 5,971 $ 110,921 $ 8,917 $ 125,809 Net sales - recognized at a point in time 172,999 180,685 555 2,602 356,841 Total net sales $ 172,999 $ 186,656 $ 111,476 $ 11,519 $ 482,650 Operating income $ 31,522 $ 28,757 $ 2,383 $ 3,351 $ 66,013 Net sales by operating segment and by geographic area were as follows: (Dollars in thousands) Net Sales (1) Region/Country Advanced Connectivity Solutions Elastomeric Material Solutions Power Electronics Solutions Other Total Three Months Ended June 30, 2020 United States $ 17,396 $ 30,073 $ 5,489 $ 707 $ 53,665 Other Americas 681 1,668 77 48 2,474 Total Americas 18,077 31,741 5,566 755 56,139 China 35,580 20,159 9,120 1,024 65,883 Other APAC 8,575 9,835 4,864 453 23,727 Total APAC 44,155 29,994 13,984 1,477 89,610 Germany 2,708 4,799 15,699 44 23,250 Other EMEA 6,000 5,092 9,971 1,095 22,158 Total EMEA 8,708 9,891 25,670 1,139 45,408 Total net sales $ 70,940 $ 71,626 $ 45,220 $ 3,371 $ 191,157 Three Months Ended June 30, 2019 United States $ 16,272 $ 41,370 $ 8,208 $ 1,079 $ 66,929 Other Americas 1,039 2,190 229 206 3,664 Total Americas 17,311 43,560 8,437 1,285 70,593 China 49,333 23,846 11,283 953 85,415 Other APAC 17,026 15,534 6,625 760 39,945 Total APAC 66,359 39,380 17,908 1,713 125,360 Germany 3,951 3,471 14,305 130 21,857 Other EMEA 4,908 7,483 11,012 1,639 25,042 Total EMEA 8,859 10,954 25,317 1,769 46,899 Total net sales $ 92,529 $ 93,894 $ 51,662 $ 4,767 $ 242,852 (1) Net sales are allocated to countries based on the location of the customer. The table above lists individual countries with 10% or more of net sales for the periods indicated. (Dollars in thousands) Net Sales (1) Region/Country Advanced Connectivity Solutions Elastomeric Material Solutions Power Electronics Solutions Other Total Six Months Ended June 30, 2020 United States $ 31,849 $ 68,640 $ 13,661 $ 1,686 $ 115,836 Other Americas 1,625 4,117 186 359 6,287 Total Americas 33,474 72,757 13,847 2,045 122,123 China 60,205 38,534 17,428 1,249 117,416 Other APAC 23,894 22,788 9,224 1,001 56,907 Total APAC 84,099 61,322 26,652 2,250 174,323 Germany 6,381 8,433 28,755 193 43,762 Other EMEA 11,539 12,640 22,687 2,893 49,759 Total EMEA 17,920 21,073 51,442 3,086 93,521 Total net sales $ 135,493 $ 155,152 $ 91,941 $ 7,381 $ 389,967 Six Months Ended June 30, 2019 United States $ 29,343 $ 84,835 $ 15,685 $ 2,369 $ 132,232 Other Americas 1,791 4,273 249 397 6,710 Total Americas 31,134 89,108 15,934 2,766 138,942 China 91,822 46,265 22,347 3,466 163,900 Other APAC 31,167 30,022 11,963 1,569 74,721 Total APAC 122,989 76,287 34,310 5,035 238,621 Germany 8,423 6,907 36,252 276 51,858 Other EMEA 10,453 14,354 24,980 3,442 53,229 Total EMEA 18,876 21,261 61,232 3,718 105,087 Total net sales $ 172,999 $ 186,656 $ 111,476 $ 11,519 $ 482,650 (1) Net sales are allocated to countries based on the location of the customer. The table above lists individual countries with 10% or more of net sales for the periods indicated. Revenue from Contracts with Customers We have contract assets primarily related to unbilled revenue for revenue recognized related to products that are deemed to have no alternative use whereby we have the right to payment. Revenue is recognized in advance of billing to the customer in these circumstances as billing is typically performed at the time of shipment to the customer. The unbilled revenue is included in contract assets on the condensed consolidated statements of financial position. Contract assets by operating segment were as follows: (Dollars in thousands) June 30, 2020 December 31, 2019 Advanced Connectivity Solutions $ — $ — Elastomeric Material Solutions 1,004 1,077 Power Electronics Solutions 16,312 19,471 Other 1,964 1,907 Total contract assets $ 19,280 $ 22,455 We did not have any contract liabilities as of June 30, 2020 or December 31, 2019. No impairment losses were recognized for either of the three or six-month periods ended June 30, 2020 and 2019, respectively, on any receivables or contract assets arising from our contracts with customers.

Supplemental Financial Informat

Supplemental Financial Information	6 Months Ended
	Jun. 30, 2020
Supplemental Income Statement Elements [Abstract]
Supplemental Financial Information	Supplemental Financial Information Restructuring and Impairment Charges The components of “Restructuring and impairment charges” line item in the condensed consolidated statements of operations, were as follows: Three Months Ended Six Months Ended (Dollars in thousands) June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Restructuring Charges $ — $ 143 $ — $ 949 Impairment charges — 940 — 956 Total restructuring and impairment charges $ — $ 1,083 $ — $ 1,905 Restructuring Charges In 2018, we made the decision to consolidate our Santa Fe Springs, California operations into our facilities in Carol Stream, Illinois and Bear, Delaware, which was completed as of December 31, 2019. We recorded $0.1 million and $0.9 million of expense for the three and six months ended June 30, 2019 related to this facility consolidation. Impairment Charges We recognized $0.9 million and $1.0 million in impairment charges on certain assets in connection with the Isola USA Corp. (Isola) asset acquisition for the three and six months ended June 30, 2019, respectively. Other Operating (Income) Expense, Net The components of “Other operating (income) expense, net” line item in the condensed consolidated statements of operations, were as follows: Three Months Ended Six Months Ended (Dollars in thousands) June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Lease income $ — $ (329) $ — $ (876) Depreciation on leased assets — 366 — 1,551 Loss on sale or disposal of property, plant and equipment 33 3 53 276 Economic incentive grants (145) — (145) — Total other operating (income) expense, net $ (112) $ 40 $ (92) $ 951 In connection with the transitional leaseback of a portion of the facility and certain machinery and equipment acquired from Isola in August 2018, we recognized lease income of $0.3 million and $0.9 million for the three and six months ended June 30, 2019, respectively, and related depreciation on leased assets of $0.4 million and $1.6 million, respectively, for the three and six months ended June 30, 2019. Interest Expense, Net The components of “Interest expense, net” line item in the condensed consolidated statements of operations, were as follows: Three Months Ended Six Months Ended (Dollars in thousands) June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Interest on revolving credit facility $ 1,388 $ 2,179 $ 2,467 $ 4,430 Interest rate swap settlements 336 (79) 422 (201) Line of credit fees 152 127 318 253 Debt issuance amortization costs 138 138 276 276 Interest on finance leases 32 31 65 63 Interest income (269) (375) (589) (864) Other 2 17 27 19 Total interest expense, net $ 1,779 $ 2,038 $ 2,986 $ 3,976

Recent Accounting Standards

Recent Accounting Standards	6 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
Recent Accounting Standards	Recently Issued Standards In March 2020, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting . This ASU applies only to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate that is expected to be discontinued after reference rate reform. This ASU provides optional expedients and exceptions to accounting under GAAP for contract modifications that replace a reference rate affected by reference rate reform. The amendments in this update were effective as of March 12, 2020 and we may elect to apply the amendments to contract modifications or hedging relationships entered into through December 31, 2022. We are currently evaluating the potential impact of adopting this guidance on our consolidated financial statements. Recently Adopted Standards Reflected in Our 2020 Financial Statements In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments . This ASU replaces the incurred loss model with a new expected loss impairment model that applies to certain financial assets measured at amortized cost, including trade and other receivables and contract assets. We adopted this update in January 2020 using the modified-retrospective approach, and it did not have a material impact on our condensed consolidated financial statements.

Recent Accounting Standards (Po

Recent Accounting Standards (Policies)	6 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
Recently Issued Standards and Recently Adopted Standards Reflected in Our 2019 Financial Statements	Recent Accounting Standards Recently Issued Standards In March 2020, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting . This ASU applies only to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate that is expected to be discontinued after reference rate reform. This ASU provides optional expedients and exceptions to accounting under GAAP for contract modifications that replace a reference rate affected by reference rate reform. The amendments in this update were effective as of March 12, 2020 and we may elect to apply the amendments to contract modifications or hedging relationships entered into through December 31, 2022. We are currently evaluating the potential impact of adopting this guidance on our consolidated financial statements. Recently Adopted Standards Reflected in Our 2020 Financial Statements In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments . This ASU replaces the incurred loss model with a new expected loss impairment model that applies to certain financial assets measured at amortized cost, including trade and other receivables and contract assets. We adopted this update in January 2020 using the modified-retrospective approach, and it did not have a material impact on our condensed consolidated financial statements.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Schedule of Available-for-sale Residual Pension Surplus Investment Balance	As a result of our pension termination and settlement efforts in late 2019 and the first half of 2020, we have a pension surplus investment balance, which is now accounted for as an available-for-sale investment as of June 2020. For additional information regarding this balance, refer to “Note 11 – Pension Benefits and Other Postretirement Benefits.” Available-for-sale investments measured at fair value on a recurring basis, categorized by the level of inputs used in the valuation, were as follows: Available-for-Sale Investment at Fair Value as of June 30, 2020 (Dollars in thousands) Level 1 Level 2 Level 3 Total Pension surplus investment (1) $ — $ 9,744 $ — $ 9,744 (1) This balance was invested in a fund comprised of fixed income and short-term cash securities, and was recorded in the “Other long-term assets” line item in the condensed consolidated statements of financial position. As of June 30, 2020, the fair value of this investment approximated its carrying value.
Assets Measured at Fair Value on a Recurring Basis, Categorized by the Level of Inputs Used in the Valuation	Derivative instruments measured at fair value on a recurring basis, categorized by the level of inputs used in the valuation, were as follows: Derivative Instruments at Fair Value as of June 30, 2020 (Dollars in thousands) Level 1 Level 2 Level 3 Total (1) Foreign currency contracts $ — $ (95) $ — $ (95) Copper derivative contracts $ — $ 1,541 $ — $ 1,541 Interest rate swap contract $ — $ (2,770) $ — $ (2,770) Derivative Instruments at Fair Value as of December 31, 2019 (Dollars in thousands) Level 1 Level 2 Level 3 Total (1) Foreign currency contracts $ — $ (6) $ — $ (6) Copper derivative contracts $ — $ 1,147 $ — $ 1,147 Interest rate swap contract $ — $ (1,254) $ — $ (1,254) (1) All balances were recorded in the “Other current assets” or “Other accrued liabilities” line items in the condensed consolidated statements of financial position, except the 2020 and 2019 interest rate swap balance, which was recorded in the “Other long-term liabilities” line item.

Hedging Transactions and Deri_2

Hedging Transactions and Derivative Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Notional Amounts of Outstanding Derivative Positions	As of June 30, 2020, the notional values of the remaining foreign currency forward contracts were as follows: Notional Values of Foreign Currency Derivatives USD/CNH $ 25,492,958 KRW/USD ₩ 11,961,700,000 EUR/USD € 8,018,710 As of June 30, 2020, the volume of our copper contracts outstanding was as follows: Volume of Copper Derivatives July 2020 - September 2020 201 metric tons per month October 2020 - December 2020 201 metric tons per month January 2021 - March 2021 256 metric tons per month April 2021 - June 2021 256 metric tons per month July 2021 - September 2021 171 metric tons per month
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance	The impacts from our derivative instruments on the statement of operations and statements of comprehensive income (loss) were as follows: Three Months Ended Six Months Ended (Dollars in thousands) Financial Statement Line Item June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Foreign Currency Contracts Contracts not designated as hedging instruments Other (expense) income, net $ (27) $ 125 $ (555) $ (586) Copper Derivative Contracts Contracts not designated as hedging instruments Other (expense) income, net $ 964 $ (775) $ (171) $ (465) Interest Rate Swap Contract designated as hedging instrument Other comprehensive income (loss) $ 173 $ (1,113) $ (1,517) $ (1,745)

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	6 Months Ended
	Jun. 30, 2020
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Balances Related to Each Component of Accumulated Other Comprehensive Income (Loss)	The changes in accumulated other comprehensive loss by component were as follows: (Dollars and accompanying footnotes in thousands) Foreign Currency Translation Adjustments Pension and Other Postretirement Benefits (1) Derivative Instrument Designated as Cash Flow Hedge (2) Total Balance as of December 31, 2019 $ (35,478) $ (10,455) $ (972) $ (46,905) Other comprehensive income (loss) before reclassifications (1,265) 626 (866) (1,505) Amounts reclassified from accumulated other comprehensive loss — 85 (334) (249) Net current-period other comprehensive income (loss) (1,265) 711 (1,200) (1,754) Balance as of June 30, 2020 $ (36,743) $ (9,744) $ (2,172) $ (48,659) Balance as of December 31, 2018 $ (30,488) $ (48,700) $ 354 $ (78,834) Other comprehensive loss before reclassifications (2,075) — (1,204) (3,279) Amounts reclassified from accumulated other comprehensive loss — 313 (156) 157 Net current-period other comprehensive income (loss) (2,075) 313 (1,360) (3,122) Balance as of June 30, 2019 $ (32,563) $ (48,387) $ (1,006) $ (81,956) (1) Net of taxes of $2,172 and $2,368 as of June 30, 2020 and December 31, 2019, respectively. Net of taxes of $9,893 and $9,984 as of June 30, 2019 and December 31, 2018, respectively. (2) Net of taxes of $598 and $282 as of June 30, 2020 and December 31, 2019, respectively. Net of taxes of $278 and $(106) as of June 30, 2019 and December 31, 2018, respectively.

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Jun. 30, 2020
Inventory Disclosure [Abstract]
Inventories	Inventories, which are valued at the lower of cost or net realizable value, consisted of the following: (Dollars in thousands) June 30, 2020 December 31, 2019 Raw materials $ 59,832 $ 61,338 Work-in-process 27,561 30,043 Finished goods 37,354 41,478 Total inventories $ 124,747 $ 132,859

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The changes in the net carrying amount of goodwill by operating segment were as follows: (Dollars in thousands) Advanced Connectivity Solutions Elastomeric Material Solutions Power Electronics Solutions Other Total December 31, 2019 $ 51,694 $ 142,030 $ 66,982 $ 2,224 $ 262,930 Foreign currency translation adjustment — (598) 137 — $ (461) June 30, 2020 $ 51,694 $ 141,432 $ 67,119 $ 2,224 $ 262,469
Schedule of Intangible Assets	The gross and net carrying amounts, as well as the accumulated amortization of other intangible assets were as follows: June 30, 2020 December 31, 2019 (Dollars in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Customer relationships $ 149,180 $ 46,109 $ 103,071 $ 149,317 $ 39,018 $ 110,299 Technology 80,935 48,181 32,754 80,938 45,190 35,748 Trademarks and trade names 11,967 5,185 6,782 11,994 4,361 7,633 Covenants not to compete 1,340 666 674 1,340 505 835 Total definite-lived other intangible assets 243,422 100,141 143,281 243,589 89,074 154,515 Indefinite-lived other intangible asset 4,441 — 4,441 4,432 — 4,432 Total other intangible assets $ 247,863 $ 100,141 $ 147,722 $ 248,021 $ 89,074 $ 158,947
Schedule of Weighted Average Amortization Period, by Intangible Asset Class	The weighted average amortization period as of June 30, 2020, by definite-lived other intangible asset class, was as follows: Definite-Lived Other Intangible Asset Class Weighted Average Remaining Amortization Period Customer relationships 5.0 years Technology 4.0 years Trademarks and trade names 3.2 years Covenants not to compete 1.4 years Total definite-lived other intangible assets 4.7 years

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2020
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings Per Share	The following table sets forth the computation of basic and diluted earnings per share: (Dollars and shares in thousands, except per share amounts) Three Months Ended Six Months Ended June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Numerator: Net income $ 14,520 $ 24,293 $ 27,779 $ 52,692 Denominator: Weighted-average shares outstanding - basic 18,676 18,568 18,673 18,562 Effect of dilutive shares 5 162 13 149 Weighted-average shares outstanding - diluted 18,681 18,730 18,686 18,711 Basic earnings per share $ 0.78 $ 1.31 $ 1.49 $ 2.84 Diluted earnings per share $ 0.78 $ 1.30 $ 1.49 $ 2.82

Capital Stock and Equity Comp_2

Capital Stock and Equity Compensation (Tables)	6 Months Ended
	Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Assumptions Used in Calculation of Fair Value	The following table sets forth the assumptions used in the Monte Carlo calculation for each material award granted in 2020 and 2019: February 12, 2020 June 3, 2019 February 7, 2019 Expected volatility 41.0% 39.7% 36.7% Expected term (in years) 2.9 2.6 2.9 Risk-free interest rate 1.41% 1.78% 2.43%
Performance-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock Activities	A summary of activity of the outstanding performance-based restricted stock units for the six months ended June 30, 2020 is presented below: Performance-Based Awards outstanding as of December 31, 2019 106,943 Awards granted 87,244 Stock issued (75,486) Awards forfeited (4,962) Awards outstanding as of June 30, 2020 113,739
Time-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock Activities	A summary of activity of the outstanding time-based restricted stock units for the six months ended June 30, 2020 is presented below: Time-Based Awards outstanding as of December 31, 2019 101,685 Awards granted 58,042 Stock issued (47,197) Awards forfeited (3,585) Awards outstanding as of June 30, 2020 108,945
Deferred Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock Activities	A summary of activity of the outstanding deferred stock units for the six months ended June 30, 2020 is presented below: Deferred Stock Units Awards outstanding as of December 31, 2019 7,150 Awards granted 9,400 Stock issued (5,100) Awards outstanding as of June 30, 2020 11,450

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2020
Leases [Abstract]
Schedule of lease expense and payments for operating leases	Our expenses and payments for operating leases were as follows: Three Months Ended Six Months Ended (Dollars in thousands) June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Operating leases expense $ 694 $ 775 $ 1,422 $ 1,493 Short-term leases expense $ 107 $ 43 $ 230 $ 82 Payments on operating lease obligations $ 722 $ 760 $ 1,468 $ 1,524 The following table includes information regarding the lease term and discount rates utilized in the calculation of the present value of net future minimum lease payments: Finance Operating Weighted Average Remaining Lease Term 1.0 year 2.5 years Weighted Average Discount Rate 3.00% 4.97%
Assets and Liabilities Balance Related to Finance and Operating Leases	Our assets and liabilities balances related to finance and operating leases reflected in the condensed consolidated statements of financial position were as follows: (Dollars in thousands) Location in Statements of Financial Position June 30, 2020 December 31, 2019 Finance lease right-of-use assets Property, plant and equipment, net $ 6,125 $ 6,280 Operating lease right-of-use assets Other long-term assets $ 4,643 $ 4,656 Finance lease obligations, current portion Other accrued liabilities $ 4,350 $ 400 Finance lease obligations, non-current portion Other long-term liabilities $ — $ 4,140 Total finance lease obligations $ 4,350 $ 4,540 Operating lease obligations, current portion Other accrued liabilities $ 2,326 $ 2,343 Operating lease obligations, non-current portion Other long-term liabilities $ 2,339 $ 2,334 Total operating lease obligations $ 4,665 $ 4,677
Future minimum lease payments for financing leases	The following table includes future minimum lease payments under finance and operating leases together with the present value of the net future minimum lease payments as of June 30, 2020: Finance Operating (Dollars in thousands) Leases Signed Less: Leases Not Yet Commenced Total Leases Leases Signed Less: Leases Not Yet Commenced Total Leases 2020 $ 266 $ — $ 266 $ 1,362 $ (11) $ 1,351 2021 4,445 (235) 4,210 1,970 (29) 1,941 2022 235 (235) — 1,063 (29) 1,034 2023 211 (211) — 433 (18) 415 2024 — — — 199 — 199 Thereafter — — — 5 — 5 Total lease payments 5,157 (681) 4,476 5,032 (87) 4,945 Less: Interest (212) 86 (126) (285) 5 (280) Present Value of Net Future Minimum Lease Payments $ 4,945 $ (595) $ 4,350 $ 4,747 $ (82) $ 4,665
Future minimum lease payments for operating leases	The following table includes future minimum lease payments under finance and operating leases together with the present value of the net future minimum lease payments as of June 30, 2020: Finance Operating (Dollars in thousands) Leases Signed Less: Leases Not Yet Commenced Total Leases Leases Signed Less: Leases Not Yet Commenced Total Leases 2020 $ 266 $ — $ 266 $ 1,362 $ (11) $ 1,351 2021 4,445 (235) 4,210 1,970 (29) 1,941 2022 235 (235) — 1,063 (29) 1,034 2023 211 (211) — 433 (18) 415 2024 — — — 199 — 199 Thereafter — — — 5 — 5 Total lease payments 5,157 (681) 4,476 5,032 (87) 4,945 Less: Interest (212) 86 (126) (285) 5 (280) Present Value of Net Future Minimum Lease Payments $ 4,945 $ (595) $ 4,350 $ 4,747 $ (82) $ 4,665

Pension Benefits and Other Po_2

Pension Benefits and Other Postretirement Benefit Plans (Tables)	6 Months Ended
	Jun. 30, 2020
Retirement Benefits [Abstract]
Components of Net Periodic Benefit Cost	The components of net periodic benefit (credit) cost were as follows: Pension Benefits Other Postretirement Benefits Three Months Ended Six Months Ended Three Months Ended Six Months Ended June 30, June 30, June 30, June 30, (Dollars in thousands) 2020 2019 2020 2019 2020 2019 2020 2019 Service cost $ — $ — $ — $ — $ 17 $ 18 $ 34 $ 36 Interest cost 231 1,785 462 3,569 10 15 20 30 Expected return of plan assets (393) (2,192) (786) (4,384) — — — — Amortization of prior service credit — — — — (28) (253) (56) (506) Amortization of net loss 114 456 228 910 — — — — Settlement benefit (63) — (63) — — — — — Net periodic benefit (credit) cost $ (111) $ 49 $ (159) $ 95 $ (1) $ (220) $ (2) $ (440)

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Schedule of Liability for Unpaid Claims and Claims Adjustment Expense	The following table summarizes the change in number of asbestos claims outstanding for the six months ended June 30, 2020: Asbestos Claims Claims outstanding as of January 1, 2020 592 New claims filed 47 Pending claims concluded (1) (83) Claims outstanding as of June 30, 2020 556 (1) For the six months ended June 30, 2020, 69 claims were dismissed and 14 claims were settled. Settlements totaled approximately $2.4 million for the six months ended June 30, 2020.
Schedule of Asbestos-Related Claims and Insurance Receivables	Our projected asbestos-related liabilities and insurance receivables were as follows: (Dollars in thousands) June 30, 2020 December 31, 2019 Asbestos-related liabilities $ 85,703 $ 85,880 Asbestos-related insurance receivables $ 78,316 $ 78,316

Operating Segment Information (

Operating Segment Information (Tables)	6 Months Ended
	Jun. 30, 2020
Segment Reporting [Abstract]
Reportable Segment Information	The following table presents a disaggregation of revenue from contracts with customers and other pertinent financial information, for the periods indicated; inter-segment sales have been eliminated from the net sales data: (Dollars in thousands) Advanced Connectivity Solutions Elastomeric Material Solutions Power Electronics Solutions Other Total Three Months Ended June 30, 2020 Net sales - recognized over time $ — $ 2,667 $ 45,060 $ 3,077 $ 50,804 Net sales - recognized at a point in time 70,940 68,959 160 294 140,353 Total net sales $ 70,940 $ 71,626 $ 45,220 $ 3,371 $ 191,157 Operating income $ 15,624 $ 2,995 $ 1,446 $ 1,027 $ 21,092 Three Months Ended June 30, 2019 Net sales - recognized over time $ — $ 2,965 $ 51,319 $ 4,313 $ 58,597 Net sales - recognized at a point in time 92,529 90,929 343 454 184,255 Total net sales $ 92,529 $ 93,894 $ 51,662 $ 4,767 $ 242,852 Operating income (loss) $ 18,458 $ 15,326 $ (1,884) $ 1,313 $ 33,213 Six Months Ended June 30, 2020 Net sales - recognized over time $ — $ 5,494 $ 91,461 $ 6,727 $ 103,682 Net sales - recognized at a point in time 135,493 149,658 480 654 286,285 Total net sales $ 135,493 $ 155,152 $ 91,941 $ 7,381 $ 389,967 Operating income $ 21,086 $ 14,512 $ 762 $ 2,207 $ 38,567 Six Months Ended June 30, 2019 Net sales - recognized over time $ — $ 5,971 $ 110,921 $ 8,917 $ 125,809 Net sales - recognized at a point in time 172,999 180,685 555 2,602 356,841 Total net sales $ 172,999 $ 186,656 $ 111,476 $ 11,519 $ 482,650 Operating income $ 31,522 $ 28,757 $ 2,383 $ 3,351 $ 66,013 Net sales by operating segment and by geographic area were as follows: (Dollars in thousands) Net Sales (1) Region/Country Advanced Connectivity Solutions Elastomeric Material Solutions Power Electronics Solutions Other Total Three Months Ended June 30, 2020 United States $ 17,396 $ 30,073 $ 5,489 $ 707 $ 53,665 Other Americas 681 1,668 77 48 2,474 Total Americas 18,077 31,741 5,566 755 56,139 China 35,580 20,159 9,120 1,024 65,883 Other APAC 8,575 9,835 4,864 453 23,727 Total APAC 44,155 29,994 13,984 1,477 89,610 Germany 2,708 4,799 15,699 44 23,250 Other EMEA 6,000 5,092 9,971 1,095 22,158 Total EMEA 8,708 9,891 25,670 1,139 45,408 Total net sales $ 70,940 $ 71,626 $ 45,220 $ 3,371 $ 191,157 Three Months Ended June 30, 2019 United States $ 16,272 $ 41,370 $ 8,208 $ 1,079 $ 66,929 Other Americas 1,039 2,190 229 206 3,664 Total Americas 17,311 43,560 8,437 1,285 70,593 China 49,333 23,846 11,283 953 85,415 Other APAC 17,026 15,534 6,625 760 39,945 Total APAC 66,359 39,380 17,908 1,713 125,360 Germany 3,951 3,471 14,305 130 21,857 Other EMEA 4,908 7,483 11,012 1,639 25,042 Total EMEA 8,859 10,954 25,317 1,769 46,899 Total net sales $ 92,529 $ 93,894 $ 51,662 $ 4,767 $ 242,852 (1) Net sales are allocated to countries based on the location of the customer. The table above lists individual countries with 10% or more of net sales for the periods indicated. (Dollars in thousands) Net Sales (1) Region/Country Advanced Connectivity Solutions Elastomeric Material Solutions Power Electronics Solutions Other Total Six Months Ended June 30, 2020 United States $ 31,849 $ 68,640 $ 13,661 $ 1,686 $ 115,836 Other Americas 1,625 4,117 186 359 6,287 Total Americas 33,474 72,757 13,847 2,045 122,123 China 60,205 38,534 17,428 1,249 117,416 Other APAC 23,894 22,788 9,224 1,001 56,907 Total APAC 84,099 61,322 26,652 2,250 174,323 Germany 6,381 8,433 28,755 193 43,762 Other EMEA 11,539 12,640 22,687 2,893 49,759 Total EMEA 17,920 21,073 51,442 3,086 93,521 Total net sales $ 135,493 $ 155,152 $ 91,941 $ 7,381 $ 389,967 Six Months Ended June 30, 2019 United States $ 29,343 $ 84,835 $ 15,685 $ 2,369 $ 132,232 Other Americas 1,791 4,273 249 397 6,710 Total Americas 31,134 89,108 15,934 2,766 138,942 China 91,822 46,265 22,347 3,466 163,900 Other APAC 31,167 30,022 11,963 1,569 74,721 Total APAC 122,989 76,287 34,310 5,035 238,621 Germany 8,423 6,907 36,252 276 51,858 Other EMEA 10,453 14,354 24,980 3,442 53,229 Total EMEA 18,876 21,261 61,232 3,718 105,087 Total net sales $ 172,999 $ 186,656 $ 111,476 $ 11,519 $ 482,650 (1) Net sales are allocated to countries based on the location of the customer. The table above lists individual countries with 10% or more of net sales for the periods indicated. Contract assets by operating segment were as follows: (Dollars in thousands) June 30, 2020 December 31, 2019 Advanced Connectivity Solutions $ — $ — Elastomeric Material Solutions 1,004 1,077 Power Electronics Solutions 16,312 19,471 Other 1,964 1,907 Total contract assets $ 19,280 $ 22,455

Supplemental Financial Inform_2

Supplemental Financial Information (Tables)	6 Months Ended
	Jun. 30, 2020
Supplemental Income Statement Elements [Abstract]
Schedule of Restructuring and Impairment Charges	The components of “Restructuring and impairment charges” line item in the condensed consolidated statements of operations, were as follows: Three Months Ended Six Months Ended (Dollars in thousands) June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Restructuring Charges $ — $ 143 $ — $ 949 Impairment charges — 940 — 956 Total restructuring and impairment charges $ — $ 1,083 $ — $ 1,905
Schedule Of Other Operating Expense	The components of “Other operating (income) expense, net” line item in the condensed consolidated statements of operations, were as follows: Three Months Ended Six Months Ended (Dollars in thousands) June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Lease income $ — $ (329) $ — $ (876) Depreciation on leased assets — 366 — 1,551 Loss on sale or disposal of property, plant and equipment 33 3 53 276 Economic incentive grants (145) — (145) — Total other operating (income) expense, net $ (112) $ 40 $ (92) $ 951
Interest Income and Interest Expense Disclosure	The components of “Interest expense, net” line item in the condensed consolidated statements of operations, were as follows: Three Months Ended Six Months Ended (Dollars in thousands) June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Interest on revolving credit facility $ 1,388 $ 2,179 $ 2,467 $ 4,430 Interest rate swap settlements 336 (79) 422 (201) Line of credit fees 152 127 318 253 Debt issuance amortization costs 138 138 276 276 Interest on finance leases 32 31 65 63 Interest income (269) (375) (589) (864) Other 2 17 27 19 Total interest expense, net $ 1,779 $ 2,038 $ 2,986 $ 3,976

Fair Value Measurements - Avail

Fair Value Measurements - Available-for-sale Pension Surplus (Details) - Fair Value, Measurements, Recurring $ in Thousands	Jun. 30, 2020USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pension surplus investment	$ 9,744
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pension surplus investment	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pension surplus investment	9,744
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pension surplus investment	$ 0

Fair Value Measurements (Variou

Fair Value Measurements (Various Instruments That Require Fair Value Measurement) (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Foreign currency contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of derivatives	$ (95)	$ (6)
Foreign currency contracts | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of derivatives	0	0
Foreign currency contracts | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of derivatives	(95)	(6)
Foreign currency contracts | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of derivatives	0	0
Copper derivative contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of derivatives	1,541	1,147
Copper derivative contracts | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of derivatives	0	0
Copper derivative contracts | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of derivatives	1,541	1,147
Copper derivative contracts | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of derivatives	0	0
Interest rate swap contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of derivatives	(2,770)	(1,254)
Interest rate swap contract | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of derivatives	0	0
Interest rate swap contract | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of derivatives	(2,770)	(1,254)
Interest rate swap contract | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of derivatives	$ 0	$ 0

Hedging Transactions and Deri_3

Hedging Transactions and Derivative Financial Instruments (Additional Information) (Details)	6 Months Ended
	Jun. 30, 2020USD ($)Contract	Mar. 31, 2017USD ($)	Feb. 17, 2017USD ($)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount expected to be reclassified from accumulated other comprehensive income into earnings in the next twelve months	$ 1,700,000
Bank Term Loan
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of derivative contracts related to minimizing risk associated with potential rise in copper prices (in contracts) | Contract	26
Third Amended Credit Agreement | Revolving Credit Facility
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Maximum borrowing capacity			$ 450,000,000
Interest rate swap contract | Third Amended Credit Agreement | Revolving Credit Facility
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Hedged balance on debt instrument		$ 75,000,000

Hedging Transactions and Deri_4

Hedging Transactions and Derivative Financial Instruments (Notional Values of Derivative Instruments) (Details)	Jun. 30, 2020USD ($)tons_per_month	Jun. 30, 2020KRW (₩)tons_per_month	Jun. 30, 2020EUR (€)tons_per_month
Contracts not designated as hedging instruments | USD/CNH | Foreign Exchange Forward
Derivative [Line Items]
Notional Values of Foreign Currency Derivatives | $	$ 25,492,958
Contracts not designated as hedging instruments | EUR/USD | Foreign Exchange Forward
Derivative [Line Items]
Notional Values of Foreign Currency Derivatives | €			€ 8,018,710
Contracts not designated as hedging instruments | KRW/USD | Foreign Exchange Forward
Derivative [Line Items]
Notional Values of Foreign Currency Derivatives | ₩		₩ 11,961,700,000
Contract designated as hedging instrument | July 2020 - September 2020
Derivative [Line Items]
Volume of Copper Derivatives (in metric tons per month)	201	201	201
Contract designated as hedging instrument | October 2020 - December 2020
Derivative [Line Items]
Volume of Copper Derivatives (in metric tons per month)	201	201	201
Contract designated as hedging instrument | January 2021 - March 2021
Derivative [Line Items]
Volume of Copper Derivatives (in metric tons per month)	256	256	256
Contract designated as hedging instrument | April 2021 - June 2021
Derivative [Line Items]
Volume of Copper Derivatives (in metric tons per month)	256	256	256
Contract designated as hedging instrument | July 2021 - September 2021
Derivative [Line Items]
Volume of Copper Derivatives (in metric tons per month)	171	171	171

Hedging Transactions and Deri_5

Hedging Transactions and Derivative Financial Instruments (Effect and Fair Value of Derivative Instruments) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Derivative [Line Items]
Derivative, gain (loss) on derivative, net	$ (336)	$ 79	$ (422)	$ 201
Contracts not designated as hedging instruments | Other (expense) income, net | Foreign Currency Contracts
Derivative [Line Items]
Derivative, gain (loss) on derivative, net	(27)	125	(555)	(586)
Contracts not designated as hedging instruments | Other (expense) income, net | Copper Derivative Contracts
Derivative [Line Items]
Derivative, gain (loss) on derivative, net	964	(775)	(171)	(465)
Contract designated as hedging instrument | Other comprehensive income (loss) | Interest rate swap contract
Derivative [Line Items]
Derivative, gain (loss) on derivative, net	$ 173	$ (1,113)	$ (1,517)	$ (1,745)

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss (Components of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period			$ 933,900
Other comprehensive income (loss)	$ 6,390	$ 1,467	(1,754)	$ (3,122)
Balance, end of period	962,582	897,514	962,582	897,514
AOCI, pension and other postretirement benefit plans, tax benefits (expense)	2,172	9,893	2,172	9,893	$ 2,368	$ 9,984
AOCI, cumulative changes in net gain (loss) from cash flow hedges, tax benefit (expense)	598	278	598	278	$ 282	$ (106)
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period			(35,478)	(30,488)
Other comprehensive loss before reclassifications			(1,265)	(2,075)
Amounts reclassified from accumulated other comprehensive loss			0	0
Other comprehensive income (loss)			(1,265)	(2,075)
Balance, end of period	(36,743)	(32,563)	(36,743)	(32,563)
Pension and Other Postretirement Benefits
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period			(10,455)	(48,700)
Other comprehensive loss before reclassifications			626	0
Amounts reclassified from accumulated other comprehensive loss			85	313
Other comprehensive income (loss)			711	313
Balance, end of period	(9,744)	(48,387)	(9,744)	(48,387)
Derivative Instrument Designated as Cash Flow Hedge
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period			(972)	354
Other comprehensive loss before reclassifications			(866)	(1,204)
Amounts reclassified from accumulated other comprehensive loss			(334)	(156)
Other comprehensive income (loss)			(1,200)	(1,360)
Balance, end of period	(2,172)	(1,006)	(2,172)	(1,006)
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(55,049)	(83,423)	(46,905)	(78,834)
Other comprehensive loss before reclassifications			(1,505)	(3,279)
Amounts reclassified from accumulated other comprehensive loss			(249)	157
Other comprehensive income (loss)	6,390	1,467	(1,754)	(3,122)
Balance, end of period	$ (48,659)	$ (81,956)	$ (48,659)	$ (81,956)

Inventories (Details)

Inventories (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Inventory Disclosure [Abstract]
Raw materials	$ 59,832	$ 61,338
Work-in-process	27,561	30,043
Finished goods	37,354	41,478
Total inventories	$ 124,747	$ 132,859

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill by Segment (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2020USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 262,930
Foreign currency translation adjustment	(461)
Goodwill, ending balance	262,469
Advanced Connectivity Solutions
Goodwill [Roll Forward]
Goodwill, beginning balance	51,694
Foreign currency translation adjustment	0
Goodwill, ending balance	51,694
Elastomeric Material Solutions
Goodwill [Roll Forward]
Goodwill, beginning balance	142,030
Foreign currency translation adjustment	(598)
Goodwill, ending balance	141,432
Power Electronics Solutions
Goodwill [Roll Forward]
Goodwill, beginning balance	66,982
Foreign currency translation adjustment	137
Goodwill, ending balance	67,119
Other
Goodwill [Roll Forward]
Goodwill, beginning balance	2,224
Foreign currency translation adjustment	0
Goodwill, ending balance	$ 2,224

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 243,422	$ 243,589
Indefinite-lived other intangible asset	4,441	4,432
Total other intangible assets, gross carrying amount	247,863	248,021
Accumulated Amortization	100,141	89,074
Net Carrying Amount	143,281	154,515
Total other intangible assets, net carrying amount	147,722	158,947
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	149,180	149,317
Accumulated Amortization	46,109	39,018
Net Carrying Amount	103,071	110,299
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	80,935	80,938
Accumulated Amortization	48,181	45,190
Net Carrying Amount	32,754	35,748
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	11,967	11,994
Accumulated Amortization	5,185	4,361
Net Carrying Amount	6,782	7,633
Covenants not to compete
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,340	1,340
Accumulated Amortization	666	505
Net Carrying Amount	$ 674	$ 835

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 7.6	$ 4.4	$ 11.2	$ 8.9
Annual Future Amortization Expense
Anticipated future amortization expense for the remainder of 2020	30.8		30.8
Anticipated future amortization expense for 2021	12.3		12.3
Anticipated future amortization expense for 2022	11.8		11.8
Anticipated future amortization expense for 2023	11.2		11.2
Anticipated future amortization expense for 2024	$ 9.9		$ 9.9

Goodwill and Other Intangible_6

Goodwill and Other Intangible Assets - Weighted Average Amortization Period by Intangible Asset Class (Details)	6 Months Ended
	Jun. 30, 2020
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	4 years 8 months 12 days
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	5 years
Technology
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	4 years
Trademarks and trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	3 years 2 months 12 days
Covenants not to compete
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	1 year 4 months 24 days

Earnings Per Share (Computation

Earnings Per Share (Computation of Basic and Diluted) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Numerator:
Net income	$ 14,520	$ 24,293	$ 27,779	$ 52,692
Denominator:
Weighted-average shares outstanding - basic (in shares)	18,676,000	18,568,000	18,673,000	18,562,000
Effect of dilutive shares (in shares)	5,000	162,000	13,000	149,000
Weighted-average shares outstanding - dilutive (in shares)	18,681,000	18,730,000	18,686,000	18,711,000
Basic earnings per share (in dollars per share)	$ 0.78	$ 1.31	$ 1.49	$ 2.84
Diluted earnings per share (in dollars per share)	$ 0.78	$ 1.30	$ 1.49	$ 2.82
Anti-dilutive shares excluded (in shares)	55,961	6,256

Capital Stock and Equity Comp_3

Capital Stock and Equity Compensation (Additional Information) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Performance-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock award program, measurement period (years)			3 years
Expected dividend yield (percent)			0.00%
Compensation expense	$ 1.3	$ 1.1	$ 2.7	$ 2
Performance-Based Restricted Stock Units | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock award program, awarded shares as a percentage of the original award amount (percent)			0.00%
Performance-Based Restricted Stock Units | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock award program, awarded shares as a percentage of the original award amount (percent)			200.00%
Time-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense	1.5	1.4	$ 3.1	2.9
Deferred Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense	$ 1	$ 1.1	$ 1	$ 1.1
Vesting period			13 months
Conversion ratio			1

Capital Stock and Equity Comp_4

Capital Stock and Equity Compensation (Monte Carlo Calculation Assumptions) (Details) - Performance-Based Restricted Stock Units	Feb. 12, 2020	Jun. 03, 2019	Feb. 07, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility (percent)	41.00%	39.70%	36.70%
Expected term (in years)	2 years 10 months 24 days	2 years 7 months 6 days	2 years 10 months 24 days
Risk-free interest rate (percent)	1.41%	1.78%	2.43%

Capital Stock and Equity Comp_5

Capital Stock and Equity Compensation (Performance-Based Restricted Stock Awards) (Details) - Performance-Based Restricted Stock Units	6 Months Ended
	Jun. 30, 2020shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Awards outstanding beginning balance (shares)	106,943
Awards granted (shares)	87,244
Stock issued (shares)	(75,486)
Awards forfeited (shares)	(4,962)
Awards outstanding ending balance (shares)	113,739

Capital Stock and Equity Comp_6

Capital Stock and Equity Compensation (Time-Based Restricted Stock Awards) (Details) - Time-Based Restricted Stock Units	6 Months Ended
	Jun. 30, 2020shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Awards outstanding beginning balance (shares)	101,685
Awards granted (shares)	58,042
Stock issued (shares)	(47,197)
Awards forfeited (shares)	(3,585)
Awards outstanding ending balance (shares)	108,945

Capital Stock and Equity Comp_7

Capital Stock and Equity Compensation (Deferred Stock Units) (Details) - Deferred Stock Units	6 Months Ended
	Jun. 30, 2020shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Awards outstanding beginning balance (shares)	7,150
Awards granted (shares)	9,400
Stock issued (shares)	(5,100)
Awards outstanding ending balance (shares)	11,450

Debt (Additional Information) (

Debt (Additional Information) (Details)	Jul. 29, 2020USD ($)	Feb. 17, 2017USD ($)	Feb. 28, 2017USD ($)	Jun. 30, 2020USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2020USD ($)	Jun. 30, 2019USD ($)	Jul. 30, 2020USD ($)	Mar. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Mar. 31, 2017USD ($)
Debt Instrument [Line Items]
Debt instrument, leverage ratio, maximum		2.75		2.75		2.75
Borrowings under revolving credit facility				$ 223,000,000		$ 223,000,000				$ 123,000,000
Interest expense incurred on outstanding debt				1,700,000	$ 2,100,000	2,900,000	$ 4,200,000
Maximum
Debt Instrument [Line Items]
Dividends		$ 20,000,000
Credit Agreement
Debt Instrument [Line Items]
Variable rate lower range, basis spread		0.375%
Variable rate higher range, basis spread		0.75%
Third Amended Credit Agreement
Debt Instrument [Line Items]
Leverage ratio		3.25
One-time leverage ratio maximum option		3.50
ICR covenant limit		3
Discretionary principal payments on revolving credit facility				50,000,000
Eurocurrency loans | Credit Agreement
Debt Instrument [Line Items]
Line of credit, LIBOR rate, minimum basis spread		1.375%
Line of credit, LIBOR rate, maximum basis spread		1.75%
Revolving Credit Facility
Debt Instrument [Line Items]
Borrowings									$ 150,000,000
Revolving Credit Facility | Subsequent Event
Debt Instrument [Line Items]
Borrowings								$ 98,000,000
Discretionary principal payments on revolving credit facility	$ 125,000,000
Revolving Credit Facility | Third Amended Credit Agreement
Debt Instrument [Line Items]
Debt instrument, term			5 years
Maximum borrowing capacity		$ 450,000,000
Additional borrowing capacity			$ 175,000,000
Revolving Credit Facility | Third Amended Credit Agreement | Minimum
Debt Instrument [Line Items]
Unused capacity, commitment fee percentage		0.20%
Revolving Credit Facility | Third Amended Credit Agreement | Maximum
Debt Instrument [Line Items]
Unused capacity, commitment fee percentage		0.30%
Third Amended Credit Agreement
Debt Instrument [Line Items]
Outstanding line of credit issuance costs				$ 900,000		$ 900,000				$ 1,200,000
Interest rate swap contract | Revolving Credit Facility | Third Amended Credit Agreement
Debt Instrument [Line Items]
Hedged balance on debt instrument											$ 75,000,000
Federal Funds Rate | Credit Agreement
Debt Instrument [Line Items]
Basis spread on variable rate		0.50%
London Interbank Offered Rate (LIBOR) | Third Amended Credit Agreement
Debt Instrument [Line Items]
Basis spread on variable rate						1.50%
London Interbank Offered Rate (LIBOR) | Credit Agreement
Debt Instrument [Line Items]
Basis spread on variable rate		1.00%

Leases (Narrative) (Details)

Leases (Narrative) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Finance lease obligation	$ 4,350	$ 4,540
Finance lease right-of-use assets	6,125	6,280
Germany
Lessee, Lease, Description [Line Items]
Finance lease obligation	4,400	4,500
Finance lease right-of-use assets	6,100	6,300
Finance lease right-of-use asset, accumulated amortization	$ 3,900	$ 3,800

Leases (Lease Expenses) (Detail

Leases (Lease Expenses) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Leases [Abstract]
Operating leases expense	$ 694	$ 775	$ 1,422	$ 1,493
Short-term leases expense	107	43	230	82
Payments on operating lease obligations	$ 722	$ 760	$ 1,468	$ 1,524

Leases (Assets and Liabilities

Leases (Assets and Liabilities Balance Related to Finance and Operating Leases) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Leases [Abstract]
Finance lease right-of-use assets	$ 6,125	$ 6,280
Operating lease right-of-use assets	4,643	4,656
Finance lease obligations, current portion	4,350	400
Finance lease obligations, non-current portion	0	4,140
Total finance lease obligations	4,350	4,540
Operating lease obligations, current portion	2,326	2,343
Operating lease obligations, non-current portion	2,339	2,334
Total operating lease obligations	$ 4,665	$ 4,677
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssetsNoncurrent
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesCurrent
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesCurrent
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesNoncurrent
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesNoncurrent

Leases (Lease Payments) (Detail

Leases (Lease Payments) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Finance Leases
2020	$ 266
2021	4,445
2022	235
2023	211
2024	0
Thereafter	0
Total lease payments	5,157
Less: Interest	212
Present Value of Net Future Minimum Lease Payments	4,945
Finance Leases Less: Leases Not Yet Commenced
2020	0
2021	(235)
2022	(235)
2023	(211)
2024	0
Thereafter	0
Total lease payments	(681)
Less: Interest	86
Present Value of Net Future Minimum Lease Payments	(595)
Total Leases
2020	266
2021	4,210
2022	0
2023	0
2024	0
Thereafter	0
Total lease payments	4,476
Less: Interest	(126)
Total finance lease obligations	4,350	$ 4,540
Operating Leases Signed
2020	1,362
2021	1,970
2022	1,063
2023	433
2024	199
Thereafter	5
Total lease payments	5,032
Less: Interest	(285)
Present Value of Net Future Minimum Lease Payments	4,747
Operating Lease Less: Leases Not Yet Commenced
2020	(11)
2021	(29)
2022	(29)
2023	(18)
2024	0
Thereafter	0
Total lease payments	(87)
Less: Interest	5
Present Value of Net Future Minimum Lease Payments	(82)
Operating Leases
2020	1,351
2021	1,941
2022	1,034
2023	415
2024	199
Thereafter	5
Total lease payments	4,945
Less: Interest	(280)
Total operating lease obligations	$ 4,665	$ 4,677

Leases (Lease Term and Discount

Leases (Lease Term and Discount Rate) (Details)	Jun. 30, 2020
Leases [Abstract]
Finance leases, weighted average remaining lease term	1 year
Finance leases, weighted average discount rate (percent)	3.00%
Operating leases, weighted average remaining lease term	2 years 6 months
Operating leases, weighted average discount rate (percent)	4.97%

Pension Benefits and Other Po_3

Pension Benefits and Other Postretirement Benefits (Additional Information) (Details)	Oct. 17, 2019USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2019USD ($)	Jun. 30, 2020USD ($)	Dec. 31, 2019USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2020USD ($)	Jun. 30, 2019USD ($)	Dec. 31, 2019USD ($)plan	Jul. 27, 2020USD ($)
Defined Benefit Plan Disclosure [Line Items]
Number of qualified noncontributory defined benefit plans | plan									2
Pension assets		$ 12,790,000	$ 12,790,000	$ 4,173,000	$ 12,790,000		$ 4,173,000		$ 12,790,000
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Payment for settlement	$ 123,300,000	$ 1,300,000
Lump sum distributions			$ 38,900,000
Settlement charge				0	$ (53,200,000)
Pension assets				9,700,000			9,700,000
Contributions				0		$ 0	0
Pension Benefits | Subsequent Event
Defined Benefit Plan Disclosure [Line Items]
Pension assets										$ 7,400,000
Pension Benefits | Union Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Contributions				$ 0		$ 0	$ 0	$ 0
Pension Benefits | Merged Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Contributions								$ 0

Pension Benefits and Other Po_4

Pension Benefits and Other Postretirement Benefits (Components of Net Periodic Benefit Cost) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Defined Benefit Plan Disclosure [Line Items]
Settlement benefit	$ 55	$ 0	$ 55	$ 0
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	0	0
Interest cost	231	1,785	462	3,569
Expected return of plan assets	(393)	(2,192)	(786)	(4,384)
Amortization of prior service credit	0	0	0	0
Amortization of net loss	114	456	228	910
Settlement benefit	(63)	0	(63)	0
Net periodic benefit (credit) cost	(111)	49	(159)	95
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	17	18	34	36
Interest cost	10	15	20	30
Expected return of plan assets	0	0	0	0
Amortization of prior service credit	(28)	(253)	(56)	(506)
Amortization of net loss	0	0	0	0
Settlement benefit	0	0	0	0
Net periodic benefit (credit) cost	$ (1)	$ (220)	$ (2)	$ (440)

Commitments and Contingencies_2

Commitments and Contingencies (Details) - Connecticut Voluntary Corrective Action Program $ in Millions	6 Months Ended
	Jun. 30, 2020USD ($)
Loss Contingencies [Line Items]
Environmental remediation expense incurred	$ 1.7
Accrual for future remediation efforts	$ 1

Commitments and Contingencies_3

Commitments and Contingencies (Schedule of Loss Contingencies) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2020USD ($)claim
Liability for Asbestos and Environmental Claims [Roll Forward]
Claims outstanding as of January 1, 2020	592
New claims filed	47
Pending claims concluded	(83)
Claims outstanding as of June 30, 2020	556
Number of claims dismissed	69
Number of claims settled	14
Settlements | $	$ 2.4

Commitments and Contingencies_4

Commitments and Contingencies (Schedule of Total Estimated Liability for Asbestos) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Asbestos-related liabilities	$ 85,703	$ 85,880
Asbestos-related insurance receivables	$ 78,316	$ 78,316

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Effective tax rate (percent)	30.60%	22.90%	26.10%	18.50%
Unrecognized tax benefits	$ 14.2		$ 14.2
Unrecognized tax benefits that would affect the effective tax rate if recognized	13.8		13.8
Unrecognized tax benefits, penalties accrued	$ 0.9		$ 0.9

Operating Segment Information -

Operating Segment Information - Income by Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Segment Reporting Information [Line Items]
Net sales	$ 191,157	$ 242,852	$ 389,967	$ 482,650
Operating income	21,092	33,213	38,567	66,013
Advanced Connectivity Solutions
Segment Reporting Information [Line Items]
Net sales	70,940	92,529	135,493	172,999
Operating income	15,624	18,458	21,086	31,522
Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	71,626	93,894	155,152	186,656
Operating income	2,995	15,326	14,512	28,757
Power Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	45,220	51,662	91,941	111,476
Operating income	1,446	(1,884)	762	2,383
Other
Segment Reporting Information [Line Items]
Net sales	3,371	4,767	7,381	11,519
Operating income	1,027	1,313	2,207	3,351
Recognized over time
Segment Reporting Information [Line Items]
Net sales	50,804	58,597	103,682	125,809
Recognized over time | Advanced Connectivity Solutions
Segment Reporting Information [Line Items]
Net sales	0	0	0	0
Recognized over time | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	2,667	2,965	5,494	5,971
Recognized over time | Power Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	45,060	51,319	91,461	110,921
Recognized over time | Other
Segment Reporting Information [Line Items]
Net sales	3,077	4,313	6,727	8,917
Recognized at a point in time
Segment Reporting Information [Line Items]
Net sales	140,353	184,255	286,285	356,841
Recognized at a point in time | Advanced Connectivity Solutions
Segment Reporting Information [Line Items]
Net sales	70,940	92,529	135,493	172,999
Recognized at a point in time | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	68,959	90,929	149,658	180,685
Recognized at a point in time | Power Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	160	343	480	555
Recognized at a point in time | Other
Segment Reporting Information [Line Items]
Net sales	294	454	654	2,602
United States
Segment Reporting Information [Line Items]
Net sales	53,665	66,929	115,836	132,232
United States | Advanced Connectivity Solutions
Segment Reporting Information [Line Items]
Net sales	17,396	16,272	31,849	29,343
United States | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	30,073	41,370	68,640	84,835
United States | Power Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	5,489	8,208	13,661	15,685
United States | Other
Segment Reporting Information [Line Items]
Net sales	707	1,079	1,686	2,369
Other Americas
Segment Reporting Information [Line Items]
Net sales	2,474	3,664	6,287	6,710
Other Americas | Advanced Connectivity Solutions
Segment Reporting Information [Line Items]
Net sales	681	1,039	1,625	1,791
Other Americas | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	1,668	2,190	4,117	4,273
Other Americas | Power Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	77	229	186	249
Other Americas | Other
Segment Reporting Information [Line Items]
Net sales	48	206	359	397
Total Americas
Segment Reporting Information [Line Items]
Net sales	56,139	70,593	122,123	138,942
Total Americas | Advanced Connectivity Solutions
Segment Reporting Information [Line Items]
Net sales	18,077	17,311	33,474	31,134
Total Americas | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	31,741	43,560	72,757	89,108
Total Americas | Power Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	5,566	8,437	13,847	15,934
Total Americas | Other
Segment Reporting Information [Line Items]
Net sales	755	1,285	2,045	2,766
China
Segment Reporting Information [Line Items]
Net sales	65,883	85,415	117,416	163,900
China | Advanced Connectivity Solutions
Segment Reporting Information [Line Items]
Net sales	35,580	49,333	60,205	91,822
China | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	20,159	23,846	38,534	46,265
China | Power Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	9,120	11,283	17,428	22,347
China | Other
Segment Reporting Information [Line Items]
Net sales	1,024	953	1,249	3,466
Other APAC
Segment Reporting Information [Line Items]
Net sales	23,727	39,945	56,907	74,721
Other APAC | Advanced Connectivity Solutions
Segment Reporting Information [Line Items]
Net sales	8,575	17,026	23,894	31,167
Other APAC | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	9,835	15,534	22,788	30,022
Other APAC | Power Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	4,864	6,625	9,224	11,963
Other APAC | Other
Segment Reporting Information [Line Items]
Net sales	453	760	1,001	1,569
Total APAC
Segment Reporting Information [Line Items]
Net sales	89,610	125,360	174,323	238,621
Total APAC | Advanced Connectivity Solutions
Segment Reporting Information [Line Items]
Net sales	44,155	66,359	84,099	122,989
Total APAC | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	29,994	39,380	61,322	76,287
Total APAC | Power Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	13,984	17,908	26,652	34,310
Total APAC | Other
Segment Reporting Information [Line Items]
Net sales	1,477	1,713	2,250	5,035
Germany
Segment Reporting Information [Line Items]
Net sales	23,250	21,857	43,762	51,858
Germany | Advanced Connectivity Solutions
Segment Reporting Information [Line Items]
Net sales	2,708	3,951	6,381	8,423
Germany | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	4,799	3,471	8,433	6,907
Germany | Power Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	15,699	14,305	28,755	36,252
Germany | Other
Segment Reporting Information [Line Items]
Net sales	44	130	193	276
Other EMEA
Segment Reporting Information [Line Items]
Net sales	22,158	25,042	49,759	53,229
Other EMEA | Advanced Connectivity Solutions
Segment Reporting Information [Line Items]
Net sales	6,000	4,908	11,539	10,453
Other EMEA | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	5,092	7,483	12,640	14,354
Other EMEA | Power Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	9,971	11,012	22,687	24,980
Other EMEA | Other
Segment Reporting Information [Line Items]
Net sales	1,095	1,639	2,893	3,442
Total EMEA
Segment Reporting Information [Line Items]
Net sales	45,408	46,899	93,521	105,087
Total EMEA | Advanced Connectivity Solutions
Segment Reporting Information [Line Items]
Net sales	8,708	8,859	17,920	18,876
Total EMEA | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	9,891	10,954	21,073	21,261
Total EMEA | Power Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	25,670	25,317	51,442	61,232
Total EMEA | Other
Segment Reporting Information [Line Items]
Net sales	$ 1,139	$ 1,769	$ 3,086	$ 3,718

Operating Segment Information_2

Operating Segment Information - Contract Assets By Operating Segments (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Contract assets	$ 19,280	$ 22,455
Advanced Connectivity Solutions
Segment Reporting Information [Line Items]
Contract assets	0	0
Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Contract assets	1,004	1,077
Power Electronics Solutions
Segment Reporting Information [Line Items]
Contract assets	16,312	19,471
Other
Segment Reporting Information [Line Items]
Contract assets	$ 1,964	$ 1,907

Supplemental Financial Inform_3

Supplemental Financial Information - Restructuring and Impairment Charges (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Supplemental Income Statement Elements [Abstract]
Restructuring Charges	$ 0	$ 143	$ 0	$ 949
Impairment charges	0	940	0	956
Total restructuring and impairment charges	$ 0	$ 1,083	$ 0	$ 1,905

Supplemental Financial Inform_4

Supplemental Financial Information - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 0	$ 143	$ 0	$ 949
Impairment charges	0	940	0	956
Lease income	0	329	0	876
Depreciation on leased assets	$ 0	366	$ 0	1,551
Facility Consolidation
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 100		$ 900

Supplemental Financial Inform_5

Supplemental Financial Information - Other Operating (Income) Expense, Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Supplemental Income Statement Elements [Abstract]
Lease income	$ 0	$ (329)	$ 0	$ (876)
Depreciation on leased assets	0	366	0	1,551
Loss on sale or disposal of property, plant and equipment	33	3	53	276
Economic incentive grants	(145)	0	(145)	0
Total other operating (income) expense, net	$ (112)	$ 40	$ (92)	$ 951

Supplemental Financial Inform_6

Supplemental Financial Information - Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Supplemental Income Statement Elements [Abstract]
Interest on revolving credit facility	$ 1,388	$ 2,179	$ 2,467	$ 4,430
Interest rate swap settlements	336	(79)	422	(201)
Line of credit fees	152	127	318	253
Debt issuance amortization costs	138	138	276	276
Interest on finance leases	32	31	65	63
Interest income	(269)	(375)	(589)	(864)
Other	2	17	27	19
Total interest expense, net	$ 1,779	$ 2,038	$ 2,986	$ 3,976