v3.25.2
Investments and Fair Value Measurements - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Mar. 31, 2025
Assets, Fair Value Disclosure [Abstract]    
Investments: $ 148,198  
Total financial assets 970,835 $ 831,681
Mutual funds    
Assets, Fair Value Disclosure [Abstract]    
Investments: 1,456 714
U.S. treasury securities    
Assets, Fair Value Disclosure [Abstract]    
Investments: 104,330 106,679
Corporate debt securities    
Assets, Fair Value Disclosure [Abstract]    
Investments: 24,526 22,514
Commercial paper    
Assets, Fair Value Disclosure [Abstract]    
Investments: 6,190 6,183
U.S. government agency securities    
Assets, Fair Value Disclosure [Abstract]    
Investments: 13,152 11,747
Money market funds    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents: 818,589 679,675
U.S. treasury securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents: 1,349 1,577
Commercial paper    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents: 1,243 1,596
U.S. government agency securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents:   996
Level 1    
Assets, Fair Value Disclosure [Abstract]    
Total financial assets 820,045 680,389
Level 1 | Mutual funds    
Assets, Fair Value Disclosure [Abstract]    
Investments: 1,456 714
Level 1 | U.S. treasury securities    
Assets, Fair Value Disclosure [Abstract]    
Investments: 0 0
Level 1 | Corporate debt securities    
Assets, Fair Value Disclosure [Abstract]    
Investments: 0 0
Level 1 | Commercial paper    
Assets, Fair Value Disclosure [Abstract]    
Investments: 0 0
Level 1 | U.S. government agency securities    
Assets, Fair Value Disclosure [Abstract]    
Investments: 0 0
Level 1 | Money market funds    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents: 818,589 679,675
Level 1 | U.S. treasury securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents: 0 0
Level 1 | Commercial paper    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents: 0 0
Level 1 | U.S. government agency securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents:   0
Level 2    
Assets, Fair Value Disclosure [Abstract]    
Total financial assets 150,790 151,292
Level 2 | Mutual funds    
Assets, Fair Value Disclosure [Abstract]    
Investments: 0 0
Level 2 | U.S. treasury securities    
Assets, Fair Value Disclosure [Abstract]    
Investments: 104,330 106,679
Level 2 | Corporate debt securities    
Assets, Fair Value Disclosure [Abstract]    
Investments: 24,526 22,514
Level 2 | Commercial paper    
Assets, Fair Value Disclosure [Abstract]    
Investments: 6,190 6,183
Level 2 | U.S. government agency securities    
Assets, Fair Value Disclosure [Abstract]    
Investments: 13,152 11,747
Level 2 | Money market funds    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents: 0 0
Level 2 | U.S. treasury securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents: 1,349 1,577
Level 2 | Commercial paper    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents: 1,243 1,596
Level 2 | U.S. government agency securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents:   996
Level 3    
Assets, Fair Value Disclosure [Abstract]    
Total financial assets 0 0
Level 3 | Mutual funds    
Assets, Fair Value Disclosure [Abstract]    
Investments: 0 0
Level 3 | U.S. treasury securities    
Assets, Fair Value Disclosure [Abstract]    
Investments: 0 0
Level 3 | Corporate debt securities    
Assets, Fair Value Disclosure [Abstract]    
Investments: 0 0
Level 3 | Commercial paper    
Assets, Fair Value Disclosure [Abstract]    
Investments: 0 0
Level 3 | U.S. government agency securities    
Assets, Fair Value Disclosure [Abstract]    
Investments: 0 0
Level 3 | Money market funds    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents: 0 0
Level 3 | U.S. treasury securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents: 0 0
Level 3 | Commercial paper    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents: $ 0 0
Level 3 | U.S. government agency securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents:   $ 0