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REVENUE - Schedule of Disaggregated Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | $ 35,627 | $ 34,212 | $ 119,084 | $ 105,884
Total product sales, net |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 35,137 | 34,279 | 116,989 | 105,258
INDOCIN products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 17,948 | 21,869 | 76,369 | 66,067
ROLVEDON |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 7,132 | 0 | 7,132 | 0
Otrexup |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 2,807 | 3,004 | 9,222 | 8,699
Sympazan |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 2,103 | 0 | 7,232 | 0
SPRIX |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 2,545 | 2,455 | 6,807 | 6,437
CAMBIA |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 1,993 | 5,808 | 6,062 | 17,464
Zipsor |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 597 | 259 | 2,751 | 2,704
Other products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 12 | 884 | 1,414 | 3,887
Royalties and milestone revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 490 | 473 | 1,910 | 1,916
Other revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | $ 0 | $ (540) | $ 185 | $ (1,290)

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