CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jul. 31, 2024	Jul. 31, 2023
Cash flows from operating activities:
Net income	$ 435,323	$ 197,418
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation expense	467,375	543,854
Amortization of deferred contract acquisition costs	139,813	138,744
Depreciation and amortization	55,751	50,202
Deferred income taxes	(57,866)	13,975
Gains on strategic investments, net	(20,461)	(33,945)
Provision for accounts receivable allowances	12,518	22,204
Unrealized foreign exchange losses	7,229	4,683
Non-cash operating lease cost	11,957	10,657
Amortization of discount/premium on marketable securities	(35,840)	(18,014)
Other	(1,225)	(3,415)
Changes in operating assets and liabilities:
Accounts receivable	7,637	13,631
Prepaid expenses and other assets	61,035	(83,888)
Deferred contract acquisition costs	(110,719)	(92,927)
Accounts payable	267	4,999
Accrued expenses and other liabilities	(53,967)	(58,951)
Deferred revenue	133,629	56,332
Operating lease liabilities, net	(14,931)	(11,101)
Net cash provided by operating activities	1,037,525	754,458
Cash flows from investing activities:
Purchases of marketable securities	(2,181,315)	(1,826,166)
Maturities of marketable securities	1,644,169	1,543,120
Purchases of property and equipment	(102,742)	(68,426)
Purchases of strategic investments	(13,500)	(51,000)
Proceeds from strategic investments	4,654	107,244
Cash paid for acquisition, net of cash acquired	0	(204,918)
Net cash used in investing activities	(648,734)	(500,146)
Cash flows from financing activities:
Proceeds from exercise of stock options	1,855	7,686
Proceeds from issuance of common stock for employee stock purchase plan	34,263	32,513
Proceeds from employee equity transactions to be remitted to employees and tax authorities, net	2,859	1,259
Cash paid for repurchases of common stock	(437,693)	0
Net cash (used in) provided by financing activities	(398,716)	41,458
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	(6,146)	(3,781)
Net (decrease) increase in cash, cash equivalents, and restricted cash	(16,071)	291,989
Cash, cash equivalents, and restricted cash – beginning of period	1,565,380	1,100,243
Cash, cash equivalents, and restricted cash – end of period	1,549,309	1,392,232
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	1,539,457	1,380,121
Restricted cash, current included in prepaid expenses and other current assets	9,852	11,856
Restricted cash, noncurrent included in other assets, noncurrent	0	255
Total cash, cash equivalents, and restricted cash	$ 1,549,309	$ 1,392,232