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Goodwill and Intangible Assets - Cost, accumulated amortization, and carrying amount of intangible assets (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Goodwill and Intangible Assets
Cost	$ 951,170	$ 951,170
Accumulated Amortization	(563,979)	(529,462)
Carrying Amount	387,191	421,708
Belbuca
Goodwill and Intangible Assets
Cost	360,000	360,000
Accumulated Amortization	(152,669)	(133,821)
Carrying Amount	207,331	226,179
Nucynta Products
Goodwill and Intangible Assets
Cost	521,170	521,170
Accumulated Amortization	(396,555)	(382,710)
Carrying Amount	124,615	138,460
Symproic
Goodwill and Intangible Assets
Cost	70,000	70,000
Accumulated Amortization	(14,755)	(12,931)
Carrying Amount	$ 55,245	$ 57,069

X

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(16))
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
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-Section 50
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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 928
-SubTopic 340
-Name Accounting Standards Codification
-Section 50
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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 926
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 20
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