Goodwill and Other Intangible Assets - Intangible Assets Other than Goodwill (Details ) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets, Net [Abstract]
Gross Carrying Amount	$ 413,613	$ 191,659
Accumulated Amortization	(155,596)	(146,032)
Net Book Value	258,017	45,627
Intangible assets not subject to amortization:
Gross Carrying Amount	417,830	191,659
Net Book Value	262,234	45,627
In-process research and development
Intangible assets not subject to amortization:
In-process research and development	4,217	0
Software and technology
Finite-Lived Intangible Assets, Net [Abstract]
Gross Carrying Amount	111,455	67,691
Accumulated Amortization	(65,064)	(63,046)
Net Book Value	$ 46,391	4,645
Software and technology | Minimum
Finite-Lived Intangible Assets, Net [Abstract]
Estimated useful life (in years)	3 years
Software and technology | Maximum
Finite-Lived Intangible Assets, Net [Abstract]
Estimated useful life (in years)	5 years
Customer relationships
Finite-Lived Intangible Assets, Net [Abstract]
Gross Carrying Amount	$ 234,543	97,008
Accumulated Amortization	(72,366)	(66,030)
Net Book Value	$ 162,177	30,978
Customer relationships | Minimum
Finite-Lived Intangible Assets, Net [Abstract]
Estimated useful life (in years)	3 years
Customer relationships | Maximum
Finite-Lived Intangible Assets, Net [Abstract]
Estimated useful life (in years)	10 years
Trademarks
Finite-Lived Intangible Assets, Net [Abstract]
Gross Carrying Amount	$ 67,265	26,610
Accumulated Amortization	(18,063)	(16,888)
Net Book Value	$ 49,202	9,722
Trademarks | Minimum
Finite-Lived Intangible Assets, Net [Abstract]
Estimated useful life (in years)	3 years
Trademarks | Maximum
Finite-Lived Intangible Assets, Net [Abstract]
Estimated useful life (in years)	10 years
Non-compete agreements
Finite-Lived Intangible Assets, Net [Abstract]
Estimated useful life (in years)	5 years
Gross Carrying Amount	$ 350	350
Accumulated Amortization	(103)	(68)
Net Book Value	$ 247	$ 282