CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
Income Statement [Abstract]
Revenue	$ 1,099,458	$ 1,021,495	$ 2,173,258	$ 1,977,732
Cost of revenue	273,611	261,256	535,432	526,250
Gross profit	825,847	760,239	1,637,826	1,451,482
Operating expenses:
Research and development	172,564	82,311	316,855	147,486
Sales and marketing	400,474	271,179	763,257	516,846
General and administrative	131,066	112,146	248,906	266,235
Total operating expenses	704,104	465,636	1,329,018	930,567
Income from operations	121,743	294,603	308,808	520,915
(Losses) gains on strategic investments, net	(34,712)	32,076	(71,116)	32,076
Other income (expense), net	3,368	(2,795)	(3,621)	(176)
Income before provision for income taxes	90,399	323,884	234,071	552,815
Provision for income taxes	44,649	6,800	74,663	8,200
Net income	45,750	317,084	159,408	544,615
Undistributed earnings attributable to participating securities	(4)	(154)	(19)	(309)
Net income attributable to common stockholders	$ 45,746	$ 316,930	$ 159,389	$ 544,306
Net income per share attributable to common stockholders:
Basic (in dollars per share)	$ 0.15	$ 1.07	$ 0.53	$ 1.85
Diluted (in dollars per share)	$ 0.15	$ 1.04	$ 0.52	$ 1.78
Weighted-average shares used in computing net income per share attributable to common stockholders:
Basic (in shares)	298,553,379	295,712,675	298,865,676	294,769,619
Diluted (in shares)	307,160,840	305,861,051	306,902,964	305,652,628