License and Collaboration Agreements - Additional Information (Details) - USD ($)	1 Months Ended		3 Months Ended		6 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
License and Collaboration Agreements [Line Items]
License and collaboration revenue			$ 1,157,000	$ 0	$ 2,240,000	$ 52,000
Lepu Biotech Co., Ltd.
License and Collaboration Agreements [Line Items]
One-time upfront payment		$ 4,500,000
Collaboration agreement transaction price		4,500,000
License and collaboration revenue			0	0	0	0
Lepu Biotech Co., Ltd. \| Maximum
License and Collaboration Agreements [Line Items]
Regulatory milestone payments		2,500,000
Commercial milestone payments		$ 57,500,000
Kissei Pharmaceutical Co., Ltd.
License and Collaboration Agreements [Line Items]
One-time upfront payment	$ 10,000,000
License and collaboration revenue				$ 0
Royalties	0
Kissei Pharmaceutical Co., Ltd. \| Maximum
License and Collaboration Agreements [Line Items]
Commercial milestone payments	67,000,000
Development and regulatory milestone payments	33,000,000
License and collaboration revenue			$ 100,000		$ 100,000	$ 100,000
Kissei Pharmaceutical Co., Ltd. \| Series D Redeemable Convertible Preferred Stock
License and Collaboration Agreements [Line Items]
Purchase of redeemable convertible preferred stock	$ 30,000,000