Goodwill and Other Intangibles Other Intangibles (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Finite-lived Intangible Assets [Roll Forward]
Beginning Balance	$ 546,334	$ 557,167
Foreign currency translation adjustments and other	(9,483)	(10,833)
Ending Balance	536,851	546,334	$ 557,167
Beginning Balance	(160,191)	(135,664)
Amortization	(27,122)	(27,979)	(25,100)
Foreign currency translation adjustments and other	5,084	3,452
Ending Balance	(182,229)	(160,191)	(135,664)
Net Book Value	354,622	386,143
Customer Lists and Relationships
Finite-lived Intangible Assets [Roll Forward]
Beginning Balance	428,372	439,312
Foreign currency translation adjustments and other	(5,910)	(10,940)
Ending Balance	422,462	428,372	439,312
Beginning Balance	(95,797)	(74,704)
Amortization	(23,020)	(23,402)
Foreign currency translation adjustments and other	2,068	2,309
Ending Balance	(116,749)	(95,797)	(74,704)
Net Book Value	305,713	332,575
Trademarks and trade names
Finite-lived Intangible Assets [Roll Forward]
Beginning Balance	18,453	18,981
Foreign currency translation adjustments and other	(366)	(528)
Ending Balance	18,087	18,453	18,981
Beginning Balance	(8,176)	(8,295)
Amortization	0	0
Foreign currency translation adjustments and other	238	119
Ending Balance	(7,938)	(8,176)	(8,295)
Net Book Value	10,149	10,277
Patents and Technology
Finite-lived Intangible Assets [Roll Forward]
Beginning Balance	55,801	61,618
Foreign currency translation adjustments and other	(781)	(5,817)
Ending Balance	55,020	55,801	61,618
Beginning Balance	(35,248)	(35,203)
Amortization	(1,388)	(1,450)
Foreign currency translation adjustments and other	439	1,405
Ending Balance	(36,197)	(35,248)	(35,203)
Net Book Value	18,823	20,553
Other
Finite-lived Intangible Assets [Roll Forward]
Beginning Balance	43,708	37,256
Foreign currency translation adjustments and other	(2,426)	6,452
Ending Balance	41,282	43,708	37,256
Beginning Balance	(20,970)	(17,462)
Amortization	(2,714)	(3,127)
Foreign currency translation adjustments and other	2,339	(381)
Ending Balance	(21,345)	(20,970)	$ (17,462)
Net Book Value	$ 19,937	$ 22,738

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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