Intangible Assets - Carrying Value of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Intangible Assets [Line Items]
Goodwill, Gross carrying amount	$ 1,251,938	$ 1,243,669
Goodwill, Accumulated Amortization	0	0
Goodwill, Net Carrying Amount	1,251,938	1,243,669	$ 1,206,877
Finite-lived intangible assets, Gross Carrying Amount	812,387	789,335
Finite-lived intangible assets, Accumulated Amortization	(556,379)	(490,736)
Finite-lived intangible assets, Net Carrying Amount	256,008	298,599
Indefinite-lived intangible assets, Carrying Amount	31,063	40,906
Intangible assets, Gross Carrying Amount	843,450	830,241
Intangible assets, Net Carrying Amount	287,071	339,505	$ 359,931
Trademarks
Intangible Assets [Line Items]
Indefinite-lived intangible assets, Carrying Amount	31,063	40,106
In-process research and development
Intangible Assets [Line Items]
Indefinite-lived intangible assets, Carrying Amount	0	800
Developed technologies
Intangible Assets [Line Items]
Finite-lived intangible assets, Gross Carrying Amount	428,187	413,310
Finite-lived intangible assets, Accumulated Amortization	(369,849)	(331,696)
Finite-lived intangible assets, Net Carrying Amount	58,338	81,614
Customer relationships
Intangible Assets [Line Items]
Finite-lived intangible assets, Gross Carrying Amount	295,382	297,595
Finite-lived intangible assets, Accumulated Amortization	(128,796)	(110,732)
Finite-lived intangible assets, Net Carrying Amount	166,586	186,863
Trademarks
Intangible Assets [Line Items]
Finite-lived intangible assets, Gross Carrying Amount	65,861	56,393
Finite-lived intangible assets, Accumulated Amortization	(36,539)	(30,213)
Finite-lived intangible assets, Net Carrying Amount	29,322	26,180
In-process research and development
Intangible Assets [Line Items]
Finite-lived intangible assets, Gross Carrying Amount	11,536	10,702
Finite-lived intangible assets, Accumulated Amortization	(9,774)	(7,160)
Finite-lived intangible assets, Net Carrying Amount	1,762	3,542
Backlog
Intangible Assets [Line Items]
Finite-lived intangible assets, Gross Carrying Amount	11,421	11,335
Finite-lived intangible assets, Accumulated Amortization	(11,421)	(10,935)
Finite-lived intangible assets, Net Carrying Amount	$ 0	$ 400