Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020
Other intangible assets:
Gross carrying amount, finite-lived	$ 833,127		$ 828,297
Gross carrying amount, indefinite-lived	25,400		29,343
Total intangible assets	858,527		857,640
Accumulated Amortization	(301,141)	$ (268,439)	(268,439)
Total	531,986		559,858
Net, indefinite-lived intangible assets	25,400		29,343
Total intangible assets, net	557,386		589,201
Trade name
Other intangible assets:
Gross carrying amount, indefinite-lived	23,400		27,343
Net, indefinite-lived intangible assets	23,400		27,343
Service provider network
Other intangible assets:
Gross carrying amount, indefinite-lived	2,000		2,000
Net, indefinite-lived intangible assets	2,000		2,000
Developed technology
Other intangible assets:
Gross carrying amount, finite-lived	798,198		798,260
Accumulated Amortization	(283,880)		(254,629)
Total	514,318		543,631
Customer relationships
Other intangible assets:
Gross carrying amount, finite-lived	20,145		19,072
Accumulated Amortization	(6,835)		(4,042)
Total	13,310		15,030
Software
Other intangible assets:
Gross carrying amount, finite-lived	10,946		10,865
Accumulated Amortization	(9,965)		(9,693)
Total	981		1,172
Trade name
Other intangible assets:
Gross carrying amount, finite-lived	3,738		0
Accumulated Amortization	(374)		0
Total	3,364		0
Other
Other intangible assets:
Gross carrying amount, finite-lived	100		100
Accumulated Amortization	(87)		(75)
Total	$ 13		$ 25