Goodwill and Other Intangibles Other Intangibles (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Finite-lived Intangible Assets [Roll Forward]
Beginning Balance	$ 536,851	$ 546,334
Foreign currency translation adjustments and other	28,567	(9,483)
Ending Balance	565,418	536,851	$ 546,334
Beginning Balance	(182,229)	(160,191)
Amortization	(24,922)	(27,122)	(28,000)
Foreign currency translation adjustments and other	(9,162)	5,084
Ending Balance	(216,313)	(182,229)	(160,191)
Net Book Value	349,105	354,622
Customer Lists and Relationships
Finite-lived Intangible Assets [Roll Forward]
Beginning Balance	422,462	428,372
Foreign currency translation adjustments and other	26,286	(5,910)
Ending Balance	448,748	422,462	428,372
Beginning Balance	(116,749)	(95,797)
Amortization	(22,575)	(23,020)
Foreign currency translation adjustments and other	(7,962)	2,068
Ending Balance	(147,286)	(116,749)	(95,797)
Net Book Value	301,462	305,713
Trademarks and trade names
Finite-lived Intangible Assets [Roll Forward]
Beginning Balance	18,087	18,453
Foreign currency translation adjustments and other	623	(366)
Ending Balance	18,710	18,087	18,453
Beginning Balance	(7,938)	(8,176)
Amortization	0	0
Foreign currency translation adjustments and other	(238)	238
Ending Balance	(8,176)	(7,938)	(8,176)
Net Book Value	10,534	10,149
Patents and Technology
Finite-lived Intangible Assets [Roll Forward]
Beginning Balance	55,020	55,801
Foreign currency translation adjustments and other	3,076	(781)
Ending Balance	58,096	55,020	55,801
Beginning Balance	(36,197)	(35,248)
Amortization	(1,377)	(1,388)
Foreign currency translation adjustments and other	(1,926)	439
Ending Balance	(39,500)	(36,197)	(35,248)
Net Book Value	18,596	18,823
Other
Finite-lived Intangible Assets [Roll Forward]
Beginning Balance	41,282	43,708
Foreign currency translation adjustments and other	(1,418)	(2,426)
Ending Balance	39,864	41,282	43,708
Beginning Balance	(21,345)	(20,970)
Amortization	(970)	(2,714)
Foreign currency translation adjustments and other	964	2,339
Ending Balance	(21,351)	(21,345)	$ (20,970)
Net Book Value	$ 18,513	$ 19,937

Finite lived intangible assets accumulated amortization foreign exchange impact.

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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

+ References

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- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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No definition available.

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

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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