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Property and Equipment, Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2025	Jul. 31, 2024	Jan. 31, 2025
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 117,566		$ 117,566		$ 116,028
Less: accumulated depreciation	(81,844)		(81,844)		(76,339)
Total property and equipment, net	35,722		35,722		$ 39,689
Depreciation expense	2,700	$ 2,900	$ 5,500	$ 5,800
Geographic Concentration Risk \| UNITED STATES \| Property, Plant and Equipment
Property, Plant and Equipment [Line Items]
Concentration risk, percentage			92.00%		91.00%
Computer software
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	25,486		$ 25,486		$ 24,086
Office equipment
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	23,611		23,611		23,529
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	7,827		7,827		7,894
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	60,273		60,273		59,944
Construction in progress
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	17		17		27
Software in progress
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 352		$ 352		$ 548