Revenue Recognition - Accounts Receivable and Deferred Revenue (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Assets
Accounts receivable	$ 167,862	$ 122,074
Liabilities:
Deferred revenue, current portion	13,914	7,404
Deferred revenue, long-term portion	20,543	21,318
Total deferred revenues	$ 34,457	$ 28,722	$ 32,885	$ 72,930