CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2026	Jul. 31, 2025	Jul. 31, 2026	Jul. 31, 2025
Income Statement [Abstract]
Revenue	$ 1,277,217	$ 1,217,227	$ 2,516,223	$ 2,391,942
Cost of revenue	291,722	273,165	566,009	551,567
Gross profit	985,495	944,062	1,950,214	1,840,375
Operating expenses:
Research and development	242,497	206,447	470,423	411,863
Sales and marketing	330,521	338,995	660,571	685,965
General and administrative	98,161	76,885	194,431	179,220
Total operating expenses	671,179	622,327	1,325,425	1,277,048
Income from operations	314,316	321,735	624,789	563,327
Gains on strategic investments, net	1,614,203	45,056	1,766,500	31,437
Other income, net	66,448	81,371	135,298	169,163
Income before provision for income taxes	1,994,967	448,162	2,526,587	763,927
Provision for income taxes	452,522	89,570	558,465	150,732
Net income	$ 1,542,445	$ 358,592	$ 1,968,122	$ 613,195
Net income per share:
Basic (in dollars per share)	$ 5.27	$ 1.19	$ 6.70	$ 2.02
Diluted (in dollars per share)	$ 5.15	$ 1.16	$ 6.56	$ 1.97
Weighted-average shares used in computing net income per share:
Basic (in shares)	292,879,238	301,779,114	293,688,378	303,354,835
Diluted (in shares)	299,746,342	308,224,372	300,021,287	310,515,069