Short-Term Investments - Narrative (Details) - USD ($)	12 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Accrued interest receivable	$ 500,000
Short-term investments	104,966,000	$ 0	$ 0
Summary of Investment Holdings [Line Items]
Ending allowance for credit losses	$ 0
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]	Short-term investments	Short-term investments
U.S. Treasury securities
Investments, Debt and Equity Securities [Abstract]
Short-term investments	$ 104,966,000
Summary of Investment Holdings [Line Items]
Gross Unrealized Losses	449,000
Gains or losses	$ 0