CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2022	Apr. 30, 2021
Income Statement [Abstract]
Revenue	$ 1,073,800	$ 956,237
Cost of revenue	261,821	264,994
Gross profit	811,979	691,243
Operating expenses:
Research and development	144,291	65,175
Sales and marketing	362,783	245,667
General and administrative	117,840	154,089
Total operating expenses	624,914	464,931
Income from operations	187,065	226,312
Losses on strategic investments, net	(36,404)	0
Other (expense) income, net	(6,989)	2,619
Income before provision for income taxes	143,672	228,931
Provision for income taxes	30,014	1,400
Net income	113,658	227,531
Undistributed earnings attributable to participating securities	(18)	(148)
Net income attributable to common stockholders	$ 113,640	$ 227,383
Net income per share attributable to common stockholders:
Basic (in dollars per share)	$ 0.38	$ 0.77
Diluted (in dollars per share)	$ 0.37	$ 0.74
Weighted-average shares used in computing net income per share attributable to common stockholders:
Basic (in shares)	299,147,105	293,794,778
Diluted (in shares)	306,614,220	305,412,419