Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Oct. 31, 2023	Oct. 31, 2022
Cash flows from operating activities
Net loss	$ (123,799)	$ (300,663)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	16,555	12,993
Amortization of deferred contract acquisition costs	52,828	37,967
Net amortization on marketable securities	(19,556)	501
Stock-based compensation expense	283,025	270,797
Charitable donation of Class A common stock	4,215	5,499
Amortization of operating lease right-of-use assets	9,663	8,555
Provision for deferred income taxes	(1,040)	1,171
Abandonment and impairment charges	0	2,881
Other non-cash credits, net	(4,864)	(1,714)
Changes in operating assets and liabilities:
Accounts receivable	(1,507)	(33,449)
Contract assets	(14,875)	(27,735)
Deferred contract acquisition costs	(71,727)	(69,657)
Prepaid expenses and other assets	17,247	(27,361)
Accounts payable	5,767	2,414
Accrued expenses and other liabilities	22,309	(13,785)
Accrued compensation and employee benefits	(40,590)	(26,096)
Operating lease liabilities, net	(10,296)	(488)
Deferred revenue	30,125	54,232
Net cash provided by (used in) operating activities	153,480	(103,938)
Cash flows from investing activities
Purchases of marketable securities	(1,006,606)	(204,311)
Maturities of marketable securities	576,480	93,298
Purchases of property and equipment	(3,558)	(21,614)
Payments related to business acquisition, net of cash acquired	0	(29,542)
Other investing, net	2,754	(507)
Net cash used in investing activities	(430,930)	(162,676)
Cash flows from financing activities
Repurchases of Class A common stock	(52,649)	0
Proceeds from exercise of stock options	5,421	7,605
Payments of tax withholdings on net settlement of equity awards	(75,495)	(53,300)
Net payments of tax withholdings on sell-to-cover equity award transactions	(645)	(10,132)
Proceeds from employee stock purchase plan contributions	14,253	13,525
Payment of deferred consideration related to business acquisition	(5,863)	0
Repurchase of unvested early exercised stock options	0	(1,493)
Net cash used in financing activities	(114,978)	(43,795)
Effect of exchange rate changes	(6,167)	(7,162)
Net decrease in cash, cash equivalents, and restricted cash	(398,595)	(317,571)
Cash, cash equivalents, and restricted cash - beginning of period	1,402,119	1,768,723
Cash, cash equivalents, and restricted cash - end of period	1,003,524	1,451,152
Supplemental disclosure of cash flow information
Cash paid for interest	515	720
Cash paid for income taxes	9,136	19,060
Supplemental disclosure of non-cash investing and financing activities
Reduction in accrued expenses and other liabilities for vesting of early exercised stock options	1	1,355
Value of shares issued in payment of business acquisitions	0	2,965
Payable for marketable securities purchase	9,747	2,894
Loan notes issued in connection with business acquisitions	0	11,433
Tax withholdings on net settlement of restricted stock units, accrued but not yet paid	$ 6,833	$ 2,517