CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Oct. 31, 2022	Oct. 31, 2021
Cash flows from operating activities
Net loss	$ (546,654)	$ (1,198,274)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities
Depreciation and amortization	73,446	74,625
Amortization of deferred commissions	81,409	110,105
Amortization of investment premiums (accretion of discounts), net	(2,062)	1,088
Amortization of debt discount and issuance costs	7,878	98,958
Losses on facility exits	10,000	52,524
Non-cash operating lease costs	(3,079)	(255)
Stock-based compensation	601,745	590,957
Deferred income taxes	(1,434)	(1,668)
Other	97	33
Changes in operating assets and liabilities, net of acquisition
Accounts receivable, net	407,983	425,735
Prepaid expenses and other assets	96,708	16,940
Deferred commissions	(102,366)	(136,847)
Accounts payable	(40,773)	9,526
Accrued compensation	(148,794)	15,747
Accrued expenses and other liabilities	(46,224)	64,884
Deferred revenue	(214,238)	(128,719)
Net cash provided by (used in) operating activities	173,642	(4,641)
Cash flows from investing activities
Purchases of property and equipment	(9,229)	(9,830)
Capitalized software development costs	(5,806)	(5,843)
Purchases of marketable securities	(988,904)	(358,749)
Maturities of marketable securities	352,864	124,454
Purchases of strategic investments	(6,359)	(15,450)
Acquisition, net of cash acquired	0	(80,333)
Other investment activities	1,534	947
Net cash used in investing activities	(655,900)	(344,804)
Cash flows from financing activities
Proceeds from the exercise of stock options	1,398	1,866
Proceeds from employee stock purchase plan	48,596	48,246
Proceeds from the issuance of convertible senior notes, net of issuance costs	0	982,210
Repurchases of common stock	0	(1,000,000)
Taxes paid related to net share settlement of equity awards	(163,498)	(149,560)
Net cash used in financing activities	(113,504)	(117,238)
Net decrease in cash and cash equivalents	(595,762)	(466,683)
Cash and cash equivalents at beginning of period	1,428,691	1,771,064
Cash and cash equivalents at end of period	832,929	1,304,381
Supplemental disclosures
Cash paid for income taxes	10,692	9,491
Cash paid for interest	24,452	13,909
Non-cash investing and financing activities
Increase in accrued purchases of property and equipment	2,848	2,906
Equity consideration for acquisition	0	939
Vesting of early exercised options	1	87
Costs related to issuance of convertible senior notes included in accrued expenses and other liabilities	$ 0	$ 290