CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Class A & B common stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive loss
Beginning balance (in shares) at Jan. 31, 2021		152,056,808
Beginning balance at Jan. 31, 2021	$ 2,266,320	$ 2	$ 965,670	$ 1,299,656	$ 992
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)		1,074,939
Issuance of common stock upon exercise of stock options	43,310		43,310
Issuance of common stock upon vesting of restricted stock units (in shares)		663,283
Shares withheld related to net share settlement (in shares)		(122,612)
Shares withheld related to net share settlement	(37,624)		(37,624)
Stock-based compensation expense	173,791		173,791
Change in other comprehensive loss	(6,730)				(6,730)
Net income	330,294			330,294
Ending balance (in shares) at Oct. 31, 2021		153,672,418
Ending balance at Oct. 31, 2021	2,769,361	$ 2	1,145,147	1,629,950	(5,738)
Beginning balance (in shares) at Jul. 31, 2021		153,358,259
Beginning balance at Jul. 31, 2021	2,620,097	$ 2	1,098,703	1,524,081	(2,689)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)		185,148
Issuance of common stock upon exercise of stock options	5,368		5,368
Issuance of common stock upon vesting of restricted stock units (in shares)		197,998
Shares withheld related to net share settlement (in shares)		(68,987)
Shares withheld related to net share settlement	(21,239)		(21,239)
Stock-based compensation expense	62,315		62,315
Change in other comprehensive loss	(3,049)				(3,049)
Net income	105,869			105,869
Ending balance (in shares) at Oct. 31, 2021		153,672,418
Ending balance at Oct. 31, 2021	2,769,361	$ 2	1,145,147	1,629,950	(5,738)
Beginning balance (in shares) at Jan. 31, 2022		154,196,597
Beginning balance at Jan. 31, 2022	$ 2,911,637	$ 2	1,196,547	1,727,046	(11,958)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)	978,792	978,792
Issuance of common stock upon exercise of stock options	$ 30,116		30,116
Issuance of common stock upon vesting of restricted stock units (in shares)		702,297
Shares withheld related to net share settlement (in shares)		(245,662)
Shares withheld related to net share settlement	(48,152)		(48,152)
Stock-based compensation expense	259,702		259,702
Change in other comprehensive loss	(33,684)				(33,684)
Net income	299,173			299,173
Ending balance (in shares) at Oct. 31, 2022		155,632,024
Ending balance at Oct. 31, 2022	3,418,792	$ 2	1,438,213	2,026,219	(45,642)
Beginning balance (in shares) at Jul. 31, 2022		155,224,674
Beginning balance at Jul. 31, 2022	3,243,931	$ 2	1,353,502	1,917,762	(27,335)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)		233,435
Issuance of common stock upon exercise of stock options	4,575		4,575
Issuance of common stock upon vesting of restricted stock units (in shares)		263,447
Shares withheld related to net share settlement (in shares)		(89,532)
Shares withheld related to net share settlement	(15,481)		(15,481)
Stock-based compensation expense	95,617		95,617
Change in other comprehensive loss	(18,307)				(18,307)
Net income	108,457			108,457
Ending balance (in shares) at Oct. 31, 2022		155,632,024
Ending balance at Oct. 31, 2022	$ 3,418,792	$ 2	$ 1,438,213	$ 2,026,219	$ (45,642)