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Collaboration Agreements - Biogen (Details) - Biogen - USD ($)	66 Months Ended
	Mar. 31, 2026	Dec. 31, 2025
Collaborative Arrangement
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Remaining performance obligation	$ 0	$ 0
Contract liability	0	$ 0
Biogen Collaborative Arrangement | Product
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Total collaboration revenue	0
Biogen Collaborative Arrangement | Milestone Triggered
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Total collaboration revenue	$ 0

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