Condensed Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Class A Common Stock	Class B Common Stock	Common Stock Class A Common Stock	Common Stock Class B Common Stock	Treasury Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning balance (in shares) at Jan. 31, 2023				474,160	82,453	0
Beginning balance at Jan. 31, 2023	$ 1,920,158			$ 5	$ 1	$ 0	$ 3,736,838	$ 7,612	$ (1,824,298)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)				898
Issuance of common stock upon exercise of stock options	1,175						1,175
Issuance of common stock upon settlement of restricted stock units (in shares)				4,246
Tax withholdings on settlement of restricted stock units (in shares)				(1,463)
Tax withholdings on settlement of restricted stock units	(25,697)						(25,697)
Charitable donation of Class A common stock (in shares)				281
Charitable donation of Class A common stock	4,215						4,215
Stock-based compensation	85,125						85,125
Other comprehensive (loss) income, net	2,462							2,462
Net loss	(31,901)	$ (27,186)	$ (4,715)						(31,901)
Ending balance (in shares) at Apr. 30, 2023				478,122	82,453	0
Ending balance at Apr. 30, 2023	1,955,537			$ 5	$ 1	$ 0	3,801,656	10,074	(1,856,199)
Beginning balance (in shares) at Jan. 31, 2024		492,660	82,453	492,660	82,453	(5,840)
Beginning balance at Jan. 31, 2024	$ 2,016,114			$ 5	$ 1	$ (102,615)	4,024,079	8,825	(1,914,181)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)	1,428			1,426
Issuance of common stock upon exercise of stock options	$ 311						311
Issuance of common stock upon settlement of restricted stock units (in shares)				3,843
Tax withholdings on settlement of restricted stock units (in shares)				(1,317)
Tax withholdings on settlement of restricted stock units	(29,944)						(29,944)
Charitable donation of Class A common stock (in shares)				281
Charitable donation of Class A common stock	6,564						6,564
Repurchase of Class A common stock (in shares)				(900)		(938)
Repurchase of Class A Common Stock	(22,005)					$ (22,005)
Stock-based compensation	88,785						88,785
Other comprehensive (loss) income, net	(4,085)							(4,085)
Net loss	(28,736)	$ (24,579)	$ (4,157)						(28,736)
Ending balance (in shares) at Apr. 30, 2024		496,893	82,453	496,893	82,453	(6,778)
Ending balance at Apr. 30, 2024	$ 2,027,004			$ 5	$ 1	$ (124,620)	$ 4,089,795	$ 4,740	$ (1,942,917)