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Goodwill and Intangibles (Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 118,632	$ 115,920
Accumulated amortization	(56,864)	(53,806)
Net carrying amount	61,768	62,114
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	59,740	58,041
Accumulated amortization	(19,232)	(17,674)
Net carrying amount	$ 40,508	$ 40,367
Weighted-average lives	10 years	11 years
Technology, trademark and trade name
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 40,443	$ 40,518
Accumulated amortization	(22,206)	(20,949)
Net carrying amount	$ 18,237	$ 19,569
Weighted-average lives	7 years	7 years
Production know-how
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 10,413	$ 9,325
Accumulated amortization	(8,299)	(8,167)
Net carrying amount	$ 2,114	$ 1,158
Weighted-average lives	7 years	7 years
Patents
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 8,036	$ 8,036
Accumulated amortization	(7,127)	(7,016)
Net carrying amount	$ 909	$ 1,020
Weighted-average lives	8 years	8 years

X

- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004

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-Section 50
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- Definition

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959

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