Balance Sheet Account Detail - Schedule of Amounts Presented in Accounts Payable and Other Accrued Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Accounts Payable and Other Liabilities [Roll Forward]
Beginning balance	$ 6,568	$ 7,842
(Less): Payments and credits against GTN accruals	(299)	(1,274)
Ending balance	6,269	6,568
Commercial/Medicaid Rebates and Government Chargebacks
Accounts Payable and Other Liabilities [Roll Forward]
Beginning balance	1,442	2,601
(Less): Payments and credits against GTN accruals	(35)	(1,159)
Ending balance	1,407	1,442
Distribution, Data, Inventory and GPO Administrative Fees
Accounts Payable and Other Liabilities [Roll Forward]
Beginning balance	942	942
(Less): Payments and credits against GTN accruals	0	0
Ending balance	942	942
Product Return Allowances
Accounts Payable and Other Liabilities [Roll Forward]
Beginning balance	4,184	4,299
(Less): Payments and credits against GTN accruals	(264)	(115)
Ending balance	$ 3,920	$ 4,184