Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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.

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

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Goodwill and Intangible Assets - Intangible assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Gross	$ 187,057		$ 187,057		$ 162,043
Accumulated Amortization	(117,052)		(117,052)		(116,208)
Net	70,005		$ 70,005		45,835
Weighted Average Useful Life Remaining (in years)			7 years 7 months 6 days
Amortization expense	3,302	$ 2,502	$ 5,980	$ 4,929
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross	49,886		49,886		53,062
Accumulated Amortization	(45,145)		(45,145)		(45,613)
Net	4,741		$ 4,741		7,449
Weighted Average Useful Life Remaining (in years)			2 years 3 months 18 days
Acquired technology
Finite-Lived Intangible Assets [Line Items]
Gross	36,290		$ 36,290		17,518
Accumulated Amortization	(6,301)		(6,301)		(5,430)
Net	29,989		$ 29,989		12,088
Weighted Average Useful Life Remaining (in years)			6 years 6 months
Trade names
Finite-Lived Intangible Assets [Line Items]
Gross	31,227		$ 31,227		20,448
Accumulated Amortization	(11,020)		(11,020)		(10,438)
Net	20,207		$ 20,207		10,010
Weighted Average Useful Life Remaining (in years)			11 years 1 month 6 days
Patent costs
Finite-Lived Intangible Assets [Line Items]
Gross	20,836		$ 20,836		21,852
Accumulated Amortization	(11,600)		(11,600)		(11,812)
Net	9,236		$ 9,236		10,040
Weighted Average Useful Life Remaining (in years)			11 years
Trade secrets
Finite-Lived Intangible Assets [Line Items]
Gross	19,585		$ 19,585		19,924
Accumulated Amortization	(19,130)		(19,130)		(18,971)
Net	455		$ 455		953
Weighted Average Useful Life Remaining (in years)			7 months 6 days
Acquired patents
Finite-Lived Intangible Assets [Line Items]
Gross	16,202		$ 16,202		16,257
Accumulated Amortization	(15,945)		(15,945)		(15,945)
Net	257		$ 257		312
Weighted Average Useful Life Remaining (in years)			6 years 4 months 24 days
Other
Finite-Lived Intangible Assets [Line Items]
Gross	13,031		$ 13,031		12,982
Accumulated Amortization	(7,911)		(7,911)		(7,999)
Net	$ 5,120		$ 5,120		$ 4,983
Weighted Average Useful Life Remaining (in years)			3 years 10 months 24 days