CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Oct. 31, 2025	Oct. 31, 2024
Cash flows from operating activities:
Net income	$ 1,226,068	$ 642,373
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation expense	575,550	708,370
Amortization of deferred contract acquisition costs	210,779	211,040
Depreciation and amortization	99,870	88,041
Deferred income taxes	133	(72,135)
Gains on strategic investments, net	(437,497)	(26,785)
Provision for accounts receivable allowances	13,666	17,039
Unrealized foreign exchange (gains) losses	(8,548)	4,801
Non-cash operating lease cost	18,907	17,861
Amortization of discount/premium on marketable securities	(26,340)	(54,765)
Other	6,158	3,418
Changes in operating assets and liabilities:
Accounts receivable	84,453	74,272
Prepaid expenses and other assets	25,057	(5,754)
Deferred contract acquisition costs	(192,320)	(166,795)
Accounts payable	6,373	(1,447)
Accrued expenses and other liabilities	(35,289)	(2,968)
Deferred revenue	88,423	106,248
Operating lease liabilities, net	(20,916)	(22,072)
Net cash provided by operating activities	1,634,527	1,520,742
Cash flows from investing activities:
Purchases of marketable securities	(3,352,960)	(3,702,166)
Maturities of marketable securities	3,078,276	2,690,418
Sales of marketable securities	17,525	47,482
Purchases of property and equipment	(48,885)	(128,226)
Purchases of strategic investments	(27,495)	(13,500)
Proceeds from strategic investments	3,868	4,854
Purchases of intangible assets	(500)	0
Net cash used in investing activities	(330,171)	(1,101,138)
Cash flows from financing activities:
Proceeds from exercise of stock options	1,854	3,752
Proceeds from issuance of common stock for employee stock purchase plan	36,057	34,263
Proceeds from employee equity transactions (remitted) to be remitted to employees and tax authorities, net	(100)	2,190
Cash paid for repurchases of common stock, including excise taxes	(1,296,990)	(739,311)
Taxes paid related to net share settlement of equity awards	(192,268)	0
Net cash used in financing activities	(1,451,447)	(699,106)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	13,262	(3,020)
Net decrease in cash, cash equivalents, and restricted cash	(133,829)	(282,522)
Cash, cash equivalents, and restricted cash – beginning of period	1,361,417	1,565,380
Cash, cash equivalents, and restricted cash – end of period	1,227,588	1,282,858
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	1,215,877	1,273,823
Restricted cash, current included in prepaid expenses and other current assets	11,711	9,035
Total cash, cash equivalents, and restricted cash	$ 1,227,588	$ 1,282,858