Related Party Transactions - Additional Information (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
	Jan. 01, 2024	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
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	1.2	$ 1.2
Adimab Assignment Agreement [Member]
Related Party Transaction [Line Items]
Payments For Royalties		0.6	0.4	1.2	0.9
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		0.6		0.6		$ 0.7
Due from Related Party		0.0		0.0		$ 0.0
Adimab [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
Adimab Collaboration 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 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	1.2	1.2
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	1.0	1.0
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		$ 0.0	$ 0.0	$ 0.0	$ 0.0