Goodwill and Acquired Intangible Assets - Schedule of Acquired Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 478,492	$ 442,326
Accumulated Amortization	(283,541)	(262,895)
Net Carrying Amount	194,951	179,431
Completed technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	154,170	153,722
Accumulated Amortization	(102,539)	(94,088)
Net Carrying Amount	51,631	59,634
Customer-related intangible assets
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	315,465	279,684
Accumulated Amortization	(174,845)	(163,155)
Net Carrying Amount	140,620	116,529
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	819	830
Accumulated Amortization	(657)	(529)
Net Carrying Amount	162	301
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	7,548	7,600
Accumulated Amortization	(5,010)	(4,633)
Net Carrying Amount	2,538	2,967
Acquired license rights
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	490	490
Accumulated Amortization	(490)	(490)
Net Carrying Amount	$ 0	$ 0