CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2023
Income Statement [Abstract]
Revenue	$ 4,665,433	$ 4,527,224	$ 4,392,960
Cost of revenue	1,129,627	1,077,801	1,100,451
Gross profit	3,535,806	3,449,423	3,292,509
Operating expenses:
Research and development	852,415	803,187	774,059
Sales and marketing	1,427,384	1,541,307	1,696,590
General and administrative	442,712	579,650	576,431
Total operating expenses	2,722,511	2,924,144	3,047,080
Income from operations	813,295	525,279	245,429
Gains (losses) on strategic investments, net	177,142	109,770	(37,571)
Other income, net	325,147	197,263	41,418
Income before provision for income taxes	1,315,584	832,312	249,276
Provision for income taxes	305,346	194,850	145,565
Net income	1,010,238	637,462	103,711
Undistributed earnings attributable to participating securities	0	0	(7)
Net income attributable to common stockholders	$ 1,010,238	$ 637,462	$ 103,704
Net income per share attributable to common stockholders:
Basic (in dollars per share)	$ 3.28	$ 2.12	$ 0.35
Diluted (in dollars per share)	$ 3.21	$ 2.07	$ 0.34
Weighted-average shares used in computing net income per share attributable to common stockholders:
Basic (in shares)	307,981,971	300,748,162	296,560,501
Diluted (in shares)	315,069,582	308,519,897	304,231,350