CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Oct. 31, 2024	Oct. 31, 2023
Cash flows from operating activities:
Net income	$ 642,373	$ 338,630
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation expense	708,370	802,788
Amortization of deferred contract acquisition costs	211,040	203,908
Depreciation and amortization	88,041	77,179
Deferred income taxes	(72,135)	20,056
Gains on strategic investments, net	(26,785)	(8,474)
Provision for accounts receivable allowances	17,039	29,062
Unrealized foreign exchange losses	4,801	23,281
Non-cash operating lease cost	17,861	15,841
Amortization of discount/premium on marketable securities	(54,765)	(33,307)
Other	3,418	(5,251)
Changes in operating assets and liabilities:
Accounts receivable	74,272	71,993
Prepaid expenses and other assets	(5,754)	(124,455)
Deferred contract acquisition costs	(166,795)	(146,354)
Accounts payable	(1,447)	(2,258)
Accrued expenses and other liabilities	(2,968)	(15)
Deferred revenue	106,248	1,918
Operating lease liabilities, net	(22,072)	(16,931)
Net cash provided by operating activities	1,520,742	1,247,611
Cash flows from investing activities:
Purchases of marketable securities	(3,702,166)	(2,963,597)
Maturities of marketable securities	2,690,418	2,358,078
Sales of marketable securities	47,482	0
Purchases of property and equipment	(128,226)	(108,413)
Purchases of strategic investments	(13,500)	(52,800)
Proceeds from strategic investments	4,854	107,244
Cash paid for acquisition, net of cash acquired	0	(204,918)
Net cash used in investing activities	(1,101,138)	(864,406)
Cash flows from financing activities:
Proceeds from exercise of stock options	3,752	8,336
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	2,190	(4,897)
Cash paid for repurchases of common stock	(739,311)	0
Net cash (used in) provided by financing activities	(699,106)	35,952
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	(3,020)	(21,273)
Net (decrease) increase in cash, cash equivalents, and restricted cash	(282,522)	397,884
Cash, cash equivalents, and restricted cash – beginning of period	1,565,380	1,100,243
Cash, cash equivalents, and restricted cash – end of period	1,282,858	1,498,127
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	1,273,823	1,492,910
Restricted cash, current included in prepaid expenses and other current assets	9,035	4,972
Restricted cash, noncurrent included in other assets, noncurrent	0	245
Total cash, cash equivalents, and restricted cash	$ 1,282,858	$ 1,498,127