Product Revenue, Net - Schedule of Gross to Net Adjustments Reserve (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2026 USD ($)
Contract with Customer, Asset, Allowance for Credit Loss [Roll Forward]
Balance, beginning	$ 99,342
Provision related to sales in the current year	166,774
Adjustments related to prior year sales	(4,345)
Payments and customer credits issued	(118,209)
Balance, ending	143,562
Chargebacks, Discounts for Prompt Pay and Other Allowances
Contract with Customer, Asset, Allowance for Credit Loss [Roll Forward]
Balance, beginning	8,838
Provision related to sales in the current year	37,824
Adjustments related to prior year sales	(1,978)
Payments and customer credits issued	(23,850)
Balance, ending	20,834
Rebates, Co-Pay Assistance, Returns, and Other
Contract with Customer, Asset, Allowance for Credit Loss [Roll Forward]
Balance, beginning	90,504
Provision related to sales in the current year	128,950
Adjustments related to prior year sales	(2,367)
Payments and customer credits issued	(94,359)
Balance, ending	$ 122,728