FAIR VALUE OF FINANCIAL INSTRUMENTS - Schedule of Financial Assets Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Marketable securities:
Fair Value	$ 385,083	$ 383,715
Total	640,218	768,887
Corporate notes and obligations
Cash equivalents:
Money market funds	1,479	524
Marketable securities:
Fair Value	285,929	238,237
U.S. treasury securities
Marketable securities:
Fair Value	94,562	127,045
Commercial paper
Cash equivalents:
Money market funds	8,501
Marketable securities:
Fair Value	4,592	18,433
Money market funds
Cash equivalents:
Money market funds	245,155	384,648
Level 1
Marketable securities:
Total	339,717	511,693
Level 1 | Corporate notes and obligations
Cash equivalents:
Money market funds	0	0
Marketable securities:
Fair Value	0	0
Level 1 | U.S. treasury securities
Marketable securities:
Fair Value	94,562	127,045
Level 1 | Commercial paper
Cash equivalents:
Money market funds	0
Marketable securities:
Fair Value	0	0
Level 1 | Money market funds
Cash equivalents:
Money market funds	245,155	384,648
Level 2
Marketable securities:
Total	300,501	257,194
Level 2 | Corporate notes and obligations
Cash equivalents:
Money market funds	1,479	524
Marketable securities:
Fair Value	285,929	238,237
Level 2 | U.S. treasury securities
Marketable securities:
Fair Value	0	0
Level 2 | Commercial paper
Cash equivalents:
Money market funds	8,501
Marketable securities:
Fair Value	4,592	18,433
Level 2 | Money market funds
Cash equivalents:
Money market funds	$ 0	$ 0