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Description of Business and Basis of Presentation (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2025	Apr. 30, 2024	Jan. 31, 2025	Jan. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accumulated deficit	$ (1,948,559)		$ (1,891,438)
Cash, cash equivalents, and restricted cash and short-term investments	196,349	$ 292,259	$ 224,971	$ 357,810
Net cash used in operating activities	$ (32,968)	$ (62,542)

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Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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Amount of accumulated undistributed earnings (deficit).

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