Product Revenue, Net - Schedule of Gross to Net Adjustments Reserve (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2026 USD ($)
Contract with Customer, Asset, Allowance for Credit Loss [Roll Forward]
Balance, beginning	$ 99,342
Provision related to sales in the current year	549,431
Adjustments related to prior year sales	(5,336)
Payments and customer credits issued	(435,106)
Balance, ending	208,331
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	128,225
Adjustments related to prior year sales	(2,449)
Payments and customer credits issued	(106,375)
Balance, ending	28,239
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	421,206
Adjustments related to prior year sales	(2,887)
Payments and customer credits issued	(328,731)
Balance, ending	$ 180,092