Description of Business and Basis of Presentation (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Jan. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accumulated deficit	$ 1,686,171		$ 1,614,372
Cash, cash equivalents and restricted cash	292,300
Net cash used in operations	$ 62,542	$ 104,245