Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Thousands		9 Months Ended	232 Months Ended
	May 31, 2005	Sep. 30, 2024	Sep. 30, 2024	Dec. 31, 2023
Purchase Commitment
Purchase Commitment, Excluding Long-Term Commitment [Line Items]
Cash paid		$ 30,100	$ 30,100	$ 15,100
Other current assets		24,000	24,000	7,900
Other assets		6,100	6,100	$ 7,200
Product | Bristol-Myers Squibb Company
Purchase Commitment, Excluding Long-Term Commitment [Line Items]
Company made an upfront payment			10,800
Payment of milestone amount		$ 5,000	$ 5,000
Obliged to make milestone payments	$ 14,750
License expiration period		10 years
Product | Bristol-Myers Squibb Company | Minimum
Purchase Commitment, Excluding Long-Term Commitment [Line Items]
Royalty payment, percentage (as a percent)	5.00%
Product | Bristol-Myers Squibb Company | Maximum
Purchase Commitment, Excluding Long-Term Commitment [Line Items]
Royalty payment, percentage (as a percent)	9.00%