CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2025	Jul. 31, 2024
Income Statement [Abstract]
Revenue	$ 1,217,227	$ 1,162,520	$ 2,391,942	$ 2,303,754
Cost of revenue	273,165	285,089	551,567	558,391
Gross profit	944,062	877,431	1,840,375	1,745,363
Operating expenses:
Research and development	206,447	206,756	411,863	412,314
Sales and marketing	338,995	358,770	685,965	706,778
General and administrative	76,885	109,535	179,220	220,879
Total operating expenses	622,327	675,061	1,277,048	1,339,971
Income from operations	321,735	202,370	563,327	405,392
Gains on strategic investments, net	45,056	3,107	31,437	20,461
Other income, net	81,371	87,412	169,163	159,000
Income before provision for income taxes	448,162	292,889	763,927	584,853
Provision for income taxes	89,570	73,874	150,732	149,530
Net income	$ 358,592	$ 219,015	$ 613,195	$ 435,323
Net income per share:
Basic (in dollars per share)	$ 1.19	$ 0.71	$ 2.02	$ 1.41
Diluted (in dollars per share)	$ 1.16	$ 0.70	$ 1.97	$ 1.38
Weighted-average shares used in computing net income per share:
Basic (in shares)	301,779,114	309,137,807	303,354,835	308,921,610
Diluted (in shares)	308,224,372	314,027,192	310,515,069	314,696,351