Related Party Transactions - Related Party Agreements (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
AzaTech Pharma LLC - supply agreement
Related Party Transaction [Line Items]
Trade accounts receivable, net	$ 78		$ 0
Rondo Class B unit holders - tax distributions
Related Party Transaction [Line Items]
Accounts payable and accrued expenses	3,777		0
Research and development - Parking Space Lease | Kashiv Biosciences LLC
Related Party Transaction [Line Items]
Amounts of transaction with related party	25	$ 17
Research and Development - Development and Commercialization Agreement - Ganirelix Acetate and Centrorelix Acetate | Kashiv Biosciences LLC
Related Party Transaction [Line Items]
Amounts of transaction with related party	0	50
Cost of Goods Sold Development And Commercialization Agreement - Filgrastim And Pegfilgrastim | Kashiv Biosciences LLC
Related Party Transaction [Line Items]
Amounts of transaction with related party	4,526	144
Research and Development Storage Income | Kashiv Biosciences LLC
Related Party Transaction [Line Items]
Amounts of transaction with related party	(77)	(48)
Inventory and Cost of Goods Sold | Kashiv Biosciences LLC
Related Party Transaction [Line Items]
Amounts of transaction with related party	1,216	0
Inventory and Cost of Goods Sold | Kanan, LLC - operating lease
Related Party Transaction [Line Items]
Amounts of transaction with related party	592	566
Inventory and Cost of Goods Sold | Sutaria Family Realty, LLC - operating lease
Related Party Transaction [Line Items]
Amounts of transaction with related party	314	305
Inventory and Cost of Goods Sold | Apace Packaging, LLC - packaging agreement
Related Party Transaction [Line Items]
Amounts of transaction with related party	5,001	1,836
Inventory and Cost of Goods Sold | AzaTech Pharma LLC - supply agreement
Related Party Transaction [Line Items]
Amounts of transaction with related party	2,312	575
Inventory and Cost of Goods Sold | Alkermes
Related Party Transaction [Line Items]
Amounts of transaction with related party	12	2
Research and Development - Generic Development Supply Agreement - Research and Development Material | Kashiv Biosciences LLC
Related Party Transaction [Line Items]
Amounts of transaction with related party	(48)	0
Deferred Revenue - Generic Development Supply Agreement - Development Activity Deferred Income | Kashiv Biosciences LLC
Related Party Transaction [Line Items]
Amounts of transaction with related party	(422)	0
Research and Development
Related Party Transaction [Line Items]
Amounts of transaction with related party	500	0
Research and Development | Avtar Investments LLC - consulting services
Related Party Transaction [Line Items]
Amounts of transaction with related party	69	188
Selling, General and Administrative - Operating Lease | Tracy Properties LLC - operating lease
Related Party Transaction [Line Items]
Amounts of transaction with related party	143	169
Selling, General and Administrative - Operating Lease | AvPROP, LLC - operating lease
Related Party Transaction [Line Items]
Amounts of transaction with related party	44	47
Selling, General and Administrative - Logistics Services | R&S Solutions - logistics services
Related Party Transaction [Line Items]
Amounts of transaction with related party	0	20
Other Expense | Members - tax receivable agreement
Related Party Transaction [Line Items]
Amounts of transaction with related party	1,948	$ 826
Related Party
Related Party Transaction [Line Items]
Trade accounts receivable, net	1,521		955
Accounts payable and accrued expenses	17,075		7,321
Other long-term liabilities	11,394		11,776
Related Party | Kashiv Biosciences LLC
Related Party Transaction [Line Items]
Trade accounts receivable, net	1,434		954
Accounts payable and accrued expenses	5,773		3,179
Other long-term liabilities	530		430
Related Party | Apace Packaging, LLC - packaging agreement
Related Party Transaction [Line Items]
Trade accounts receivable, net	9		0
Accounts payable and accrued expenses	1,863		1,091
Related Party | AzaTech Pharma LLC - supply agreement
Related Party Transaction [Line Items]
Accounts payable and accrued expenses	1,650		1,958
Related Party | Avtar Investments LLC - consulting services
Related Party Transaction [Line Items]
Accounts payable and accrued expenses	22		100
Related Party | Sellers of AvKARE LLC and R&S - accrued interest on Sellers Notes
Related Party Transaction [Line Items]
Accounts payable and accrued expenses	442		442
Related Party | Alkermes Plc
Related Party Transaction [Line Items]
Accounts payable and accrued expenses	16		2
Related Party | Sellers of AvKARE LLC and R&S - accrued interest on Sellers Notes
Related Party Transaction [Line Items]
Other long-term liabilities	8,691		8,139
Related Party | Alkermes
Related Party Transaction [Line Items]
Trade accounts receivable, net	0		1
Related Party | Members - tax receivable agreement
Related Party Transaction [Line Items]
Accounts payable and accrued expenses	3,532		549
Other long-term liabilities	$ 2,173		$ 3,207