Accounts Receivable - Schedule of Accounts Receivable (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Accounts Receivable Net [Abstract]
Government receivables	$ 34,251	$ 10,392
Pharmacy rebates	29,608	25,888
Other receivables	2,659	3,860
Total accounts receivable	66,518	40,140
Allowance for credit losses	(46)	0
Accounts receivable, net	$ 66,472	$ 40,140