Revenue from Contracts with Customers - Schedule of Provisions for Sales Discounts and Allowances (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2026 USD ($)
Disaggregation of Revenue [Line Items]
Beginning balance	$ 316,035
Current provisions relating to sales in current year	1,055,198
Adjustments relating to prior years	(37,627)
Payments relating to sales in current year	(797,894)
Payments relating to sales in prior years	(168,593)
Ending Balance	396,140
Avadel Acquisition
Disaggregation of Revenue [Line Items]
Avadel beginning balance as of February 12, 2026	29,021
Contractual Adjustments
Disaggregation of Revenue [Line Items]
Beginning balance	211,440
Current provisions relating to sales in current year	500,579
Adjustments relating to prior years	(29,155)
Payments relating to sales in current year	(298,219)
Payments relating to sales in prior years	(128,047)
Ending Balance	258,073
Contractual Adjustments \| Avadel Acquisition
Disaggregation of Revenue [Line Items]
Avadel beginning balance as of February 12, 2026	1,475
Discounts
Disaggregation of Revenue [Line Items]
Beginning balance	41,327
Current provisions relating to sales in current year	425,495
Adjustments relating to prior years	(4,559)
Payments relating to sales in current year	(404,110)
Payments relating to sales in prior years	(17,344)
Ending Balance	56,308
Discounts \| Avadel Acquisition
Disaggregation of Revenue [Line Items]
Avadel beginning balance as of February 12, 2026	15,499
Product Returns
Disaggregation of Revenue [Line Items]
Beginning balance	55,455
Current provisions relating to sales in current year	20,679
Adjustments relating to prior years	(5,055)
Payments relating to sales in current year	(238)
Payments relating to sales in prior years	(8,323)
Ending Balance	63,242
Product Returns \| Avadel Acquisition
Disaggregation of Revenue [Line Items]
Avadel beginning balance as of February 12, 2026	724
Other
Disaggregation of Revenue [Line Items]
Beginning balance	7,813
Current provisions relating to sales in current year	108,445
Adjustments relating to prior years	1,142
Payments relating to sales in current year	(95,327)
Payments relating to sales in prior years	(14,879)
Ending Balance	18,517
Other \| Avadel Acquisition
Disaggregation of Revenue [Line Items]
Avadel beginning balance as of February 12, 2026	$ 11,323