CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Income Statement [Abstract]
Revenue	$ 4,868,769	$ 4,665,433	$ 4,527,224
Cost of revenue	1,119,036	1,129,627	1,077,801
Gross profit	3,749,733	3,535,806	3,449,423
Operating expenses:
Research and development	844,875	852,415	803,187
Sales and marketing	1,388,297	1,427,384	1,541,307
General and administrative	392,928	442,712	579,650
Total operating expenses	2,626,100	2,722,511	2,924,144
Income from operations	1,123,633	813,295	525,279
Gains on strategic investments, net	969,822	177,142	109,770
Other income, net	328,830	325,147	197,263
Income before provision for income taxes	2,422,285	1,315,584	832,312
Provision for income taxes	522,137	305,346	194,850
Net income	$ 1,900,148	$ 1,010,238	$ 637,462
Net income per share:
Basic (in dollars per share)	$ 6.32	$ 3.28	$ 2.12
Diluted (in dollars per share)	$ 6.18	$ 3.21	$ 2.07
Weighted-average shares used in computing net income per share:
Basic (in shares)	300,503,787	307,981,971	300,748,162
Diluted (in shares)	307,333,185	315,069,582	308,519,897