CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jul. 31, 2023	Jul. 31, 2022
Cash flows from operating activities:
Net income	$ 197,418	$ 159,408
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation expense	543,854	464,878
Amortization of deferred contract acquisition costs	138,744	119,502
Depreciation and amortization	50,202	36,155
Deferred income taxes	13,975	0
(Gains) losses on strategic investments, net	(33,945)
(Gains) losses on strategic investments, net		71,116
Provision for accounts receivable allowances	22,204	26,727
Unrealized foreign exchange losses	4,683	19,472
Non-cash operating lease cost	10,657	11,067
Amortization of discount/premium on marketable securities	(18,014)	4,821
Other	(3,415)	(167)
Changes in operating assets and liabilities:
Accounts receivable	13,631	(125,898)
Prepaid expenses and other assets	(83,888)	(136,619)
Deferred contract acquisition costs	(92,927)	(157,005)
Accounts payable	4,999	16,441
Accrued expenses and other liabilities	(58,951)	64,262
Deferred revenue	56,332	220,550
Operating lease liabilities, net	(11,101)	(11,350)
Net cash provided by operating activities	754,458	783,360
Cash flows from investing activities:
Purchases of marketable securities	(1,826,166)	(1,576,853)
Maturities of marketable securities	1,543,120	1,306,676
Purchases of property and equipment	(68,426)	(52,870)
Purchases of strategic investments	(51,000)	(61,550)
Proceeds from strategic investments	107,244	0
Cash paid for acquisition, net of cash acquired	(204,918)	(120,553)
Purchases of intangible assets	0	(3,211)
Net cash used in investing activities	(500,146)	(508,361)
Cash flows from financing activities:
Proceeds from exercise of stock options	7,686	5,065
Proceeds from issuance of common stock for employee stock purchase plan	32,513	34,605
Proceeds from employee equity transactions to be remitted (remitted) to employees and tax authorities, net	1,259	(2,545)
Cash paid for repurchases of common stock	0	(425,946)
Net cash provided by (used in) financing activities	41,458	(388,821)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	(3,781)	(16,111)
Net increase (decrease) in cash, cash equivalents, and restricted cash	291,989	(129,933)
Cash, cash equivalents, and restricted cash – beginning of period	1,100,243	1,073,353
Cash, cash equivalents, and restricted cash – end of period	1,392,232	943,420
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	1,380,121	937,443
Restricted cash, current included in prepaid expenses and other current assets	11,856	5,708
Restricted cash, noncurrent included in other assets, noncurrent	255	269
Total cash, cash equivalents, and restricted cash	$ 1,392,232	$ 943,420