CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2023	Apr. 30, 2022
Cash flows from operating activities:
Net income	$ 15,444	$ 113,658
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation expense	282,345	209,363
Amortization of deferred contract acquisition costs	73,230	56,780
Depreciation and amortization	24,076	15,280
Deferred income taxes	21,511	0
(Gains) losses on strategic investments, net	(2,275)
(Gains) losses on strategic investments, net		36,404
Provision for accounts receivable allowances	15,433	13,097
Unrealized foreign exchange losses	3,316	11,980
Non-cash operating lease cost	5,381	5,451
Amortization of discount/premium on marketable securities	(6,765)	3,604
Other	(5,471)	750
Changes in operating assets and liabilities:
Accounts receivable	(29,101)	(83,605)
Prepaid expenses and other assets	(6,659)	(27,235)
Deferred contract acquisition costs	(46,338)	(65,690)
Accounts payable	1,881	11,153
Accrued expenses and other liabilities	24,640	78,236
Deferred revenue	53,340	152,974
Operating lease liabilities, net	(5,501)	(6,049)
Net cash provided by operating activities	418,487	526,151
Cash flows from investing activities:
Purchases of marketable securities	(768,230)	(611,662)
Maturities of marketable securities	559,686	609,327
Purchases of property and equipment	(21,826)	(25,038)
Purchases of strategic investments	(51,000)	(11,750)
Cash paid for acquisition, net of cash acquired	(199,416)	0
Purchases of intangible assets	0	(3,211)
Net cash used in investing activities	(480,786)	(42,334)
Cash flows from financing activities:
Proceeds from exercise of stock options	4,268	3,255
Proceeds from employee equity transactions to be remitted (remitted) to employees and tax authorities, net	2,751	(4,086)
Cash paid for repurchases of common stock	0	(132,412)
Net cash provided by (used in) financing activities	7,019	(133,243)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	(2,553)	(9,425)
Net increase in cash, cash equivalents, and restricted cash	(57,833)	341,149
Cash, cash equivalents, and restricted cash – beginning of period	1,100,243	1,073,353
Cash, cash equivalents, and restricted cash – end of period	1,042,410	1,414,502
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	1,029,546	1,407,305
Restricted cash, current included in prepaid expenses and other current assets	12,610	6,923
Restricted cash, noncurrent included in other assets, noncurrent	254	274
Total cash, cash equivalents, and restricted cash	$ 1,042,410	$ 1,414,502