Marketable Securities and Fair Value of Financial Assets and Liabilities - Schedule of Financial Assets and Liabilities at Fair Value on Recurring Basis (Detail) - Recurring Basis [Member] - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Assets:
Total assets	$ 129,581	$ 274,858
Level 1 [Member]
Assets:
Total assets	19,331	85,946
Level 2 [Member]
Assets:
Total assets	110,250	188,912
Money Market Funds [Member]
Assets:
Cash equivalents	19,331	85,946
Money Market Funds [Member] | Level 1 [Member]
Assets:
Cash equivalents	19,331	85,946
U.S. Treasury Bills and Notes [Member]
Assets:
Marketable Securities	110,250	188,912
U.S. Treasury Bills and Notes [Member] | Level 2 [Member]
Assets:
Marketable Securities	$ 110,250	$ 188,912