Balance Sheet Account Detail - Schedule of Amounts Presented in Accounts Payable and Other Accrued Obligations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Accounts Payable And Other Accrued Liabilities [Roll Forward]
Beginning balance	$ 7,842	$ 20,523
(Less): Payments and credits against GTN accruals	(1,274)	(12,681)
Ending balance	6,568	7,842
Commercial/Medicaid Rebates and Government Chargebacks
Accounts Payable And Other Accrued Liabilities [Roll Forward]
Beginning balance	2,601	14,671
(Less): Payments and credits against GTN accruals	(1,159)	(12,070)
Ending balance	1,442	2,601
Distribution, Data, Inventory, and GPO Administrative Fees
Accounts Payable And Other Accrued Liabilities [Roll Forward]
Beginning balance	942	1,138
(Less): Payments and credits against GTN accruals	0	(196)
Ending balance	942	942
Product Return Allowances
Accounts Payable And Other Accrued Liabilities [Roll Forward]
Beginning balance	4,299	4,714
(Less): Payments and credits against GTN accruals	(115)	(415)
Ending balance	$ 4,184	$ 4,299