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

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jul. 31, 2026	Jul. 31, 2025
Cash flows from operating activities:
Net income	$ 1,968,122	$ 613,195
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation expense	358,737	390,268
Amortization of deferred contract acquisition costs	107,155	139,563
Depreciation and amortization	65,112	67,479
Deferred income taxes	341,465	(53,271)
Gains on strategic investments, net	(1,766,500)	(31,437)
Provision for accounts receivable allowances	5,326	10,120
Unrealized foreign exchange losses (gains)	3,001	(8,539)
Non-cash operating lease cost	12,048	12,494
Amortization of discount/premium on marketable securities	(6,257)	(21,635)
Other	987	3,812
Changes in operating assets and liabilities:
Accounts receivable	(40,250)	(23,608)
Prepaid expenses and other assets	45,906	3,160
Deferred contract acquisition costs	(186,162)	(129,552)
Accounts payable	5,948	4,794
Accrued expenses and other liabilities	(13,960)	(81,985)
Deferred revenue	129,774	125,015
Operating lease liabilities, net	(14,091)	(14,672)
Net cash provided by operating activities	1,016,361	1,005,201
Cash flows from investing activities:
Purchases of marketable securities	(4,488,122)	(2,227,043)
Maturities of marketable securities	1,238,601	2,088,081
Sales of marketable securities	3,428,694	12,525
Purchases of property and equipment	(43,466)	(33,876)
Purchases of strategic investments	(441,074)	(27,495)
Proceeds from strategic investments	309	2,505
Cash paid for acquisition, net of cash acquired	(248,655)	0
Payments to Acquire Intangible Assets	(524)	(500)
Net cash used in investing activities	(554,237)	(185,803)
Cash flows from financing activities:
Proceeds from exercise of stock options	1,552	1,375
Proceeds from issuance of common stock for employee stock purchase plan	40,892	36,057
Proceeds from employee equity transactions to be remitted (remitted) to employees and tax authorities, net	6,285	(2,083)
Cash paid for repurchases of common stock, including excise taxes	(722,189)	(883,284)
Taxes paid related to net share settlement of equity awards	(121,761)	(137,457)
Net cash used in financing activities	(795,221)	(985,392)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	(2,136)	13,276
Net decrease in cash, cash equivalents, and restricted cash	(335,233)	(152,718)
Cash, cash equivalents, and restricted cash – beginning of period	1,283,781	1,361,417
Cash, cash equivalents, and restricted cash – end of period	948,548	1,208,699
Reconciliation of cash, cash equivalents, and restricted cash within the condensed consolidated balance sheets to the amounts shown in the condensed consolidated statements of cash flows above:
Cash and cash equivalents	931,992	1,198,576
Restricted cash, current included in prepaid expenses and other current assets	16,556	10,123
Total cash, cash equivalents, and restricted cash	$ 948,548	$ 1,208,699

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jul. 31, 2026	Jan. 31, 2026
Current assets:
Cash and cash equivalents	$ 931,992	$ 1,272,877
Marketable securities	6,317,729	6,544,031
Accounts receivable, net of allowances of $18,426 and $18,348 as of July 31, 2026 and January 31, 2026, respectively	532,958	497,339
Deferred contract acquisition costs, current	139,034	108,856
Prepaid expenses and other current assets	193,688	234,856
Total current assets	8,115,401	8,657,959
Deferred contract acquisition costs, noncurrent	264,361	215,533
Property and equipment, net	254,705	264,525
Operating lease right-of-use assets	56,402	52,423
Strategic investments	3,785,876	1,578,611
Goodwill	599,181	400,392
Deferred tax assets	328,894	646,640
Other assets, noncurrent	180,576	144,333
Total assets	13,585,396	11,960,416
Current liabilities:
Accounts payable	14,364	6,268
Accrued expenses and other current liabilities	557,561	581,773
Deferred revenue, current	1,549,428	1,411,149
Total current liabilities	2,121,353	1,999,190
Deferred revenue, noncurrent	12,735	13,195
Operating lease liabilities, noncurrent	33,340	30,710
Other liabilities, noncurrent	114,357	109,063
Total liabilities	2,281,785	2,152,158
Commitments and contingencies (Note 7)
Stockholders’ equity:
Common stock, $0.001 par value per share, 2,000,000,000 Class A shares authorized as of July 31, 2026 and January 31, 2026; 263,750,816 and 266,805,638 shares issued and outstanding as of July 31, 2026 and January 31, 2026, respectively; 300,000,000 Class B shares authorized as of July 31, 2026 and January 31, 2026; 28,577,134 and 28,721,770 shares issued and outstanding as of July 31, 2026 and January 31, 2026, respectively	292	295
Additional paid-in capital	3,666,536	4,099,753
Accumulated other comprehensive income	(31,005)	8,544
Retained earnings	7,667,788	5,699,666
Total stockholders’ equity	11,303,611	9,808,258
Total liabilities and stockholders’ equity	$ 13,585,396	$ 11,960,416