Acquired Intangible Assets and Goodwill - Schedule of Acquired Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 542,933	$ 538,899
Accumulated Amortization	(339,337)	(304,175)
Net Carrying Amount	203,596	234,724
Completed technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	179,254	172,346
Accumulated Amortization	(123,963)	(111,435)
Net Carrying Amount	55,291	60,911
Customer-related intangible assets
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	355,189	358,032
Accumulated Amortization	(208,798)	(186,733)
Net Carrying Amount	146,391	171,299
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	353	373
Accumulated Amortization	(170)	(77)
Net Carrying Amount	183	296
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	7,647	7,658
Accumulated Amortization	(5,916)	(5,440)
Net Carrying Amount	1,731	2,218
Acquired license rights
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	490	490
Accumulated Amortization	(490)	(490)
Net Carrying Amount	$ 0	$ 0