Deferred Revenue - Schedule of Changes in Deferred Revenue (Details) - USD ($) $ in Thousands		3 Months Ended
	Mar. 31, 2021	Mar. 31, 2021
Revenue From Contract With Customer [Abstract]
Deferred revenue balance at December 31, 2020		$ 236,937
Additions to deferred revenue during the period		7,118
Revenue recognized during the period	$ 19,000	(21,351)
Deferred revenue balance at March 31, 2021	$ 222,704	$ 222,704