CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2024	Apr. 30, 2023
Cash flows from operating activities:
Net income	$ 216,308	$ 15,444
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation expense	229,425	282,345
Amortization of deferred contract acquisition costs	68,125	73,230
Depreciation and amortization	26,667	24,076
Deferred income taxes	(7,952)	21,511
Gains on strategic investments, net	(17,354)	(2,275)
Provision for accounts receivable allowances	6,782	15,433
Unrealized foreign exchange losses	7,237	3,316
Non-cash operating lease cost	5,368	5,381
Amortization of discount/premium on marketable securities	(17,668)	(6,765)
Other	98	(5,471)
Changes in operating assets and liabilities:
Accounts receivable	12,260	(29,101)
Prepaid expenses and other assets	35,839	(6,659)
Deferred contract acquisition costs	(40,128)	(46,338)
Accounts payable	7,276	1,881
Accrued expenses and other liabilities	(14,942)	24,640
Deferred revenue	77,964	53,340
Operating lease liabilities, net	(7,114)	(5,501)
Net cash provided by operating activities	588,191	418,487
Cash flows from investing activities:
Purchases of marketable securities	(867,911)	(768,230)
Maturities of marketable securities	776,941	559,686
Purchases of property and equipment	(18,508)	(21,826)
Purchases of strategic investments	(3,000)	(51,000)
Proceeds from strategic investments	4,654	0
Cash paid for acquisition, net of cash acquired	0	(199,416)
Net cash used in investing activities	(107,824)	(480,786)
Cash flows from financing activities:
Proceeds from exercise of stock options	1,016	4,268
Proceeds from employee equity transactions to be remitted to employees and tax authorities, net	6,581	2,751
Cash paid for repurchases of common stock	(150,048)	0
Net cash (used in) provided by financing activities	(142,451)	7,019
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	(6,852)	(2,553)
Net increase (decrease) in cash, cash equivalents, and restricted cash	331,064	(57,833)
Cash, cash equivalents, and restricted cash – beginning of period	1,565,380	1,100,243
Cash, cash equivalents, and restricted cash – end of period	1,896,444	1,042,410
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	1,885,603	1,029,546
Restricted cash, current included in prepaid expenses and other current assets	10,588	12,610
Restricted cash, noncurrent included in other assets, noncurrent	253	254
Total cash, cash equivalents, and restricted cash	$ 1,896,444	$ 1,042,410