Description of Business and Basis of Presentation (Details) - USD ($) $ in Thousands	9 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Jan. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accumulated deficit	$ 1,519,625		$ 1,156,763
Cash, cash equivalents and restricted cash	397,400
Net cash used in operations	$ 287,488	$ 216,651