Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2022
Cash flows from operating activities:
Net loss	$ (89,883)	$ (328,352)	$ (525,586)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	22,597	18,723	14,705
Amortization of deferred contract acquisition costs	75,471	59,826	39,257
Net amortization on marketable securities	(28,246)	(1,782)	1,954
Stock-based compensation expense	371,955	369,840	515,583
Charitable donation of Class A common stock	4,215	5,499	0
Non-cash operating lease expense	13,047	11,675	8,875
Abandonment and impairment charges	0	2,881	0
Provision for deferred income taxes	554	861	(5,832)
Other non-cash (credits) charges, net	(3,700)	(2,465)	1,983
Changes in operating assets and liabilities:
Accounts receivable	(64,217)	(123,783)	(86,387)
Contract assets	(14,694)	(185)	(43,660)
Deferred contract acquisition costs	(118,833)	(118,909)	(130,186)
Prepaid expenses and other assets	4,222	(59,810)	(15,360)
Accounts payable	(5,052)	(1,571)	3,507
Accrued expenses and other liabilities	11,804	(14,954)	45,729
Accrued compensation and employee benefits	(4,039)	15,086	24,038
Operating lease liabilities, net	(13,590)	(3,307)	(9,064)
Deferred revenue	137,471	160,746	105,481
Net cash provided by (used in) operating activities	299,082	(9,981)	(54,963)
Cash flows from investing activities:
Purchases of marketable securities	(1,485,965)	(388,409)	(212,512)
Sales of marketable securities	0	0	89,383
Maturities of marketable securities	1,050,984	151,426	107,745
Purchases of property and equipment	(7,342)	(23,815)	(8,879)
Payments related to business acquisitions, net of cash acquired	0	(29,542)	(5,498)
Capitalized software development costs	0	0	(2,950)
Other investing, net	2,754	1,197	(2,731)
Net cash used in investing activities	(439,569)	(289,143)	(35,442)
Cash flows from financing activities:
Repurchases of Class A common stock	(102,615)	0	0
Proceeds from exercise of stock options	6,740	8,388	12,197
Payments of tax withholdings on net settlement of equity awards	(112,067)	(73,095)	(10,467)
Net (payments) receipts of tax withholdings on sell-to-cover equity award transactions	(645)	(9,480)	10,432
Proceeds from employee stock purchase plan contributions	17,555	15,011	19,040
Payment of deferred consideration related to business acquisition	(5,863)	0	0
Repurchase of unvested early exercised stock options	0	(1,493)	0
Proceeds from initial public offering, net of underwriting discounts and commissions	0	0	692,369
Payments of initial public offering costs	0	0	(3,734)
Proceeds from issuance of convertible preferred stock	0	0	750,000
Issuance costs related to convertible preferred stock	0	0	(164)
Net cash (used in) provided by financing activities	(196,895)	(60,669)	1,469,673
Effect of exchange rate changes	(2,621)	(6,811)	18,265
Net (decrease) increase in cash, cash equivalents, and restricted cash	(340,003)	(366,604)	1,397,533
Cash, cash equivalents, and restricted cash at beginning of period	1,402,119	1,768,723	371,190
Cash, cash equivalents, and restricted cash at end of period	1,062,116	1,402,119	1,768,723
Supplemental disclosures of cash flow information:
Cash paid for interest	563	651	691
Cash paid for income taxes	10,822	20,999	8,454
Supplemental disclosures of non-cash investing and financing activity:
Stock-based compensation capitalized for software development	0	0	4,487
Value of shares issued in payment of business acquisitions	0	2,965	30,467
Loan notes issued in connection with business acquisitions	0	11,433	0
Reduction in accrued expenses and other liabilities for vesting of early exercised stock options	2	1,357	3,017
Tax withholdings on net settlement of restricted stock units, accrued but not yet paid	3,354	2,213	270
Purchases of property and equipment included in accounts payable	$ 511	$ 1,056	$ 1,863