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Goodwill and Intangible Assets - Cost, accumulated amortization, and carrying amount of intangible assets (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
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Finite-Lived Intangible Assets [Line Items] |  |
Cost | $ 951,170 | $ 956,170
Accumulated Amortization | (494,948) | (388,702)
Carrying Amount | $ 456,222 | 567,468
Belbuca |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortization Period (Years) | 4 years 9 months 18 days |
Cost | $ 360,000 | 360,000
Accumulated Amortization | (114,973) | (58,428)
Carrying Amount | $ 245,027 | 301,572
Nucynta Products (1) |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortization Period (Years) | 8 years 6 months |
Cost | $ 521,170 | 521,170
Accumulated Amortization | (368,865) | (319,628)
Carrying Amount | $ 152,305 | 201,542
Symproic |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortization Period (Years) | 9 years 7 months 6 days |
Cost | $ 70,000 | 70,000
Accumulated Amortization | (11,110) | (5,646)
Carrying Amount | $ 58,890 | 64,354
Elyxyb |  |
Finite-Lived Intangible Assets [Line Items] |  |
Cost |  | 5,000
Accumulated Amortization |  | $ (5,000)

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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