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Revenue from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue
Product revenues, net	$ 144,767	$ 83,751
Xtampza ER
Disaggregation of Revenue
Product revenues, net	47,869	31,518
Belbuca
Disaggregation of Revenue
Product revenues, net	44,212	3,310
Nucynta IR
Disaggregation of Revenue
Product revenues, net	27,899	29,335
Nucynta ER
Disaggregation of Revenue
Product revenues, net	21,136	19,263
Symproic
Disaggregation of Revenue
Product revenues, net	$ 3,651	300
Other
Disaggregation of Revenue
Product revenues, net		$ 25

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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