Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Related Party Transaction [Line Items]
Accounts receivable, allowance for credit loss, current	$ 4,288	$ 4,825
Related party receivable, allowance for credit loss, current	1,509	1,509
Long-term portion of deferred revenue	$ 23,023	$ 23,023
Common stock, shares authorized (in shares)	400,000,000	400,000,000
Common stock, shares issued (in shares)	206,739,874	187,663,207
Common stock, shares outstanding (in shares)	206,739,874	187,663,207
Related Parties, Aggregated
Related Party Transaction [Line Items]
Long-term portion of deferred revenue	$ 21,205	$ 21,205