Related Party Transactions - Additional Information (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
	Jan. 01, 2024	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Related Party Transaction [Line Items]
Quarterly fee				$ 1.3
Research and Development Expense [Member]
Related Party Transaction [Line Items]
Quarterly fee	$ 0.6	$ 0.6	$ 0.6	1.8	$ 1.8
Adimab Assignment Agreement [Member]
Related Party Transaction [Line Items]
Payments For Royalties		0.5	0.5	1.4	0.5
Adimab Assignment Agreement [Member] \| IPR&D Expense [Member]
Related Party Transaction [Line Items]
Related Party Transaction Expenses From Transaction With Related Party		0.0	0.0	0.0	0.0
Adimab Assignment Agreement [Member] \| Research and Development Expense [Member]
Related Party Transaction [Line Items]
Related Party Transaction Expenses From Transaction With Related Party		0.0	0.0	0.0	0.0
Adimab [Member]
Related Party Transaction [Line Items]
Due To Related Parties		0.7		0.7		$ 1.3
Due from Related Party		0.0		0.0		$ 0.0
Adimab Collaboration Agreement [Member] \| Research and Development Expense [Member]
Related Party Transaction [Line Items]
Related Party Transaction Expenses From Transaction With Related Party		0.0	0.0	0.0	0.0
Quarterly fee		0.6	0.6	1.8	1.8
Adimab Platform Transfer Agreement [Member] \| Research and Development Expense [Member]
Related Party Transaction [Line Items]
Related Party Transaction Expenses From Transaction With Related Party		0.5	0.5	1.5	1.5
Maximum [Member] \| Adimab Assignment Agreement [Member] \| Research and Development Expense [Member]
Related Party Transaction [Line Items]
Related Party Transaction Expenses From Transaction With Related Party		$ 0.1	$ 0.1	$ 0.1	$ 0.1