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Summary of Significant Accounting Policies - Long-Lived Assets, Including Goodwill and Other Acquired Intangible Assets (Details) - USD ($)	12 Months Ended
	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Accounting Policies [Abstract]
Goodwill impairment	$ 0	$ 0	$ 0

Amount of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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