Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets
Accounts receivable allowance for credit losses	$ 5,562	$ 4,825
Related party receivable, allowance for credit losses	1,509	1,509
Current liabilities
Deferred revenue, net of current portion, related party	$ 23,023	$ 23,023
Shareholders' equity
Common stock, no par value (in usd per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	400,000,000	400,000,000
Common stock, shares issued (in shares)	206,738,499	187,663,207
Common stock, shares outstanding (in shares)	206,738,499	187,663,207
Related Parties, Aggregated
Current liabilities
Deferred revenue, net of current portion, related party	$ 21,205	$ 21,205

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