CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2023	Jul. 31, 2022
Income Statement [Abstract]
Revenue	$ 1,138,676	$ 1,099,458	$ 2,244,040	$ 2,173,258
Cost of revenue	266,559	273,611	530,506	535,432
Gross profit	872,117	825,847	1,713,534	1,637,826
Operating expenses:
Research and development	191,802	172,564	401,073	316,855
Sales and marketing	373,373	400,474	795,877	763,257
General and administrative	129,324	131,066	329,224	248,906
Total operating expenses	694,499	704,104	1,526,174	1,329,018
Income from operations	177,618	121,743	187,360	308,808
Gains (losses) on strategic investments, net	31,670	(34,712)	33,945	(71,116)
Other income (expense), net	41,085	3,368	72,298	(3,621)
Income before provision for income taxes	250,373	90,399	293,603	234,071
Provision for income taxes	68,399	44,649	96,185	74,663
Net income	181,974	45,750	197,418	159,408
Undistributed earnings attributable to participating securities	0	(4)	0	(19)
Net income attributable to common stockholders	$ 181,974	$ 45,746	$ 197,418	$ 159,389
Net income per share attributable to common stockholders:
Basic (in dollars per share)	$ 0.61	$ 0.15	$ 0.66	$ 0.53
Diluted (in dollars per share)	$ 0.59	$ 0.15	$ 0.65	$ 0.52
Weighted-average shares used in computing net income per share attributable to common stockholders:
Basic (in shares)	299,093,452	298,553,379	297,281,846	298,865,676
Diluted (in shares)	305,932,596	307,160,840	305,054,771	306,902,964