Goodwill and Intangible Assets - Amortization Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 18,923	$ 16,795
Nucynta Products
Finite-Lived Intangible Assets [Line Items]
Amortization expense	16,795	$ 16,795
Belbuca
Finite-Lived Intangible Assets [Line Items]
Amortization expense	1,937
Symproic
Finite-Lived Intangible Assets [Line Items]
Amortization expense	182
Elyxyb
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 9