CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2024	Jul. 31, 2023
Income Statement [Abstract]
Revenue	$ 1,162,520	$ 1,138,676	$ 2,303,754	$ 2,244,040
Cost of revenue	285,089	266,559	558,391	530,506
Gross profit	877,431	872,117	1,745,363	1,713,534
Operating expenses:
Research and development	206,756	191,802	412,314	401,073
Sales and marketing	358,770	373,373	706,778	795,877
General and administrative	109,535	129,324	220,879	329,224
Total operating expenses	675,061	694,499	1,339,971	1,526,174
Income from operations	202,370	177,618	405,392	187,360
Gains on strategic investments, net	3,107	31,670	20,461	33,945
Other income, net	87,412	41,085	159,000	72,298
Income before provision for income taxes	292,889	250,373	584,853	293,603
Provision for income taxes	73,874	68,399	149,530	96,185
Net income	$ 219,015	$ 181,974	$ 435,323	$ 197,418
Net income per share:
Basic (in dollars per share)	$ 0.71	$ 0.61	$ 1.41	$ 0.66
Diluted (in dollars per share)	$ 0.70	$ 0.59	$ 1.38	$ 0.65
Weighted-average shares used in computing net income per share:
Basic (in shares)	309,137,807	299,093,452	308,921,610	297,281,846
Diluted (in shares)	314,027,192	305,932,596	314,696,351	305,054,771