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Investments and Fair Value Measurements (Tables)
 12 Months Ended
Mar. 31, 2024
Fair Value Disclosures [Abstract]  
Schedule of Debt Securities, Available-for-Sale
The following table summarizes the amortized cost, unrealized gains and losses, and fair value of our available-for-sale investments, including those securities classified within “Cash and cash equivalents” in the consolidated balance sheets (in thousands):
March 31, 2024
Amortized CostGross Unrealized GainsGross Unrealized LossesFair Value
U.S. treasury securities$149,978 $— $(229)$149,749 
Investments Classified by Contractual Maturity Date
As of March 31, 2024, the fair values of available-for-sale investments, excluding those securities classified within “Cash and cash equivalents” in the consolidated balance sheets, by remaining contractual maturity are as follows (in thousands):
Due within one year$57,891 
Due in one year through five years46,248 
   Total$104,139 
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis
The following tables present the Company’s financial assets that have been measured at fair value on a recurring basis as of March 31, 2024 and 2023, and indicate the fair value hierarchy of the valuation inputs utilized to determine such fair value (in thousands):
March 31, 2024
Level 1Level 2Level 3Total
Cash equivalents:
Money market funds$477,102 $— $— $477,102 
U.S. treasury securities— 45,610 — 45,610 
Investments:
Mutual funds102 — — 102 
U.S. treasury securities— 104,139 — 104,139 
Total financial assets$477,204 $149,749 $— $626,953 
March 31, 2023
Level 1Level 2Level 3Total
Cash equivalents:
Money market funds$338,746 $— $— $338,746 
Total financial assets$338,746 $— $— $338,746