Income Taxes - Schedule of Components of Income (Loss) Before Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Income Tax Disclosure [Abstract]
United States	$ (195,803)	$ (261,057)	$ (262,894)
Foreign	11,636	10,286	9,569
Loss before provision for income taxes	$ (184,167)	$ (250,771)	$ (253,325)