Product Revenues, Net, Accounts Receivable, Net and Reserves for Product Revenues - Summary of Product Revenues (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Product Information [Line Items]
Products, net	$ 1,787,960	$ 1,144,876	$ 843,769
PMO Products [Member]
Product Information [Line Items]
Products, net	967,169	944,520	843,769
PMO Products [Member] | United States [Member]
Product Information [Line Items]
Products, net	816,920	797,944	747,101
PMO Products [Member] | Rest of World [Member]
Product Information [Line Items]
Products, net	150,249	146,576	96,668
ELEVIDYS [Member]
Product Information [Line Items]
Products, net	820,791	200,356	0
ELEVIDYS [Member] | United States [Member]
Product Information [Line Items]
Products, net	$ 820,791	$ 200,356	$ 0