Revenues and Accounts Receivable - Schedule of Accounts Receivable, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues And Accounts Receivable [Abstract]
Accounts receivable, invoiced	$ 84,501	$ 101,709
Accounts receivable, other	799	1,385
Allowance for doubtful accounts	(3,650)	(4,581)	$ (4,265)
Accounts receivable—net	$ 81,650	$ 98,513