Related Party Transactions - Schedule of Expenses Related to Related Party Which are Settled in Cash (Details) - USD ($)		3 Months Ended		6 Months Ended
		Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Related Party Transaction [Line Items]
Total related party expense (excludes stock-based compensation)	[1]	$ 65,503,000	$ 40,145,000	$ 125,914,000	$ 81,768,000
Related Party
Related Party Transaction [Line Items]
Total related party expense (excludes stock-based compensation)		0	0	3,100,000	2,600,000
Paragon and License Agreement | Related Party
Related Party Transaction [Line Items]
Total related party expense (excludes stock-based compensation)		0	0	3,100,000	2,600,000
License Agreement | Related Party
Related Party Transaction [Line Items]
Total related party expense (excludes stock-based compensation)		0	0	3,000,000.0	2,500,000
Other Paragon Reimbursable Expenses | Related Party
Related Party Transaction [Line Items]
Total related party expense (excludes stock-based compensation)		$ 0	$ 0	$ 100,000	$ 100,000

[1] Includes de minimis related party expenses for the three months ended June 30, 2026 and 2025. Includes related party expenses of $3.1 million and $2.6 million for the six months ended June 30, 2026 and 2025, respectively.