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Inventory - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Dec. 31, 2021
Inventory [Line Items] |  |  |  |  |
Total inventory | $ 52,239 |  | $ 52,239 |  | $ 48,382
ZYNRELEF |  |  |  |  |
Inventory [Line Items] |  |  |  |  |
Total inventory | 36,200 |  | 36,200 |  | 23,600
Cost of product sales, charges | 2,000 |  | 4,500 |  |
SUSTOL |  |  |  |  |
Inventory [Line Items] |  |  |  |  |
Total inventory | 2,600 |  | 2,600 |  | 1,700
Cost of product sales, charges |  | $ 400 |  | $ 3,500 |
CINVANTI |  |  |  |  |
Inventory [Line Items] |  |  |  |  |
Total inventory | $ 13,400 |  | $ 13,400 |  | $ 23,100

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