Fair Value Measurements - Schedule of Fair Value of Cash Equivalents and Marketable Securities (Detail) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Marketable securities:
Fair Value	$ 155,181	$ 206,389
Cash Equivalents and Marketable Securities [Member]
Marketable securities:
Total cash equivalents and marketable securities	226,131	230,303
Corporate Bonds [Member]
Marketable securities:
Fair Value	52,127	123,245
Cash Equivalents [Member]
Cash equivalents:
Total cash equivalents	70,950	23,914
US Government and Agency Securities [Member]
Cash equivalents:
Total cash equivalents	4,978	2,496
Marketable securities:
Fair Value	103,054	83,144
Money Market Mutual Funds [Member] \| Cash Equivalents [Member]
Cash equivalents:
Total cash equivalents	65,972	21,418
Level 2
Marketable securities:
Fair Value	155,181	206,389
Level 2 \| Cash Equivalents and Marketable Securities [Member]
Marketable securities:
Total cash equivalents and marketable securities	226,131	230,303
Level 2 \| Corporate Bonds [Member]
Marketable securities:
Fair Value	52,127	123,245
Level 2 \| Cash Equivalents [Member]
Cash equivalents:
Total cash equivalents	70,950	23,914
Level 2 \| US Government and Agency Securities [Member]
Cash equivalents:
Total cash equivalents	4,978	2,496
Marketable securities:
Fair Value	103,054	83,144
Level 2 \| Money Market Mutual Funds [Member] \| Cash Equivalents [Member]
Cash equivalents:
Total cash equivalents	$ 65,972	$ 21,418