Deferred Revenue - Schedule of Changes in Deferred Revenue (Details) - USD ($) $ in Thousands		12 Months Ended
	Dec. 31, 2019	Dec. 31, 2019
Revenue From Contract With Customer [Abstract]
Deferred revenue balance at December 31, 2018		$ 13,399
Additions to deferred revenue during the period		317,551
Revenue recognized during the period	$ 8,500	(50,624)
Deferred revenue balance at December 31, 2019	$ 280,326	$ 280,326