Revenue from Contracts with Customers - Changes in the Balance of Deferred Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Changes in the Balance of Deferred Revenue [Roll Forward]
Balance at beginning of the year	$ 104,184	$ 67,540	$ 39,739
Add: Billings during the year	427,011	286,303	200,178
Less: Revenue recognized during the year	(371,022)	(249,659)	(172,377)
Balance at end of the year	$ 160,173	$ 104,184	$ 67,540