Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2022
CASH FLOW FROM OPERATING ACTIVITIES:
Net loss	$ (338,693)	$ (378,678)	$ (271,101)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	38,912	29,721	7,909
Amortization of deferred contract acquisition costs	48,682	36,417	21,670
Non-cash operating lease costs	4,020	3,559	2,862
Stock-based compensation expense	216,870	164,466	87,889
Accretion of discounts, and amortization of premiums on investments, net	(19,943)	(12,217)	0
Net gain on strategic investments	(2,703)	0	0
Other	4,637	(1,187)	(456)
Changes in operating assets and liabilities, net of effects of acquisitions
Accounts receivable	(61,949)	(44,442)	(59,082)
Prepaid expenses and other current assets	(1,207)	(14,499)	(7,319)
Deferred contract acquisition costs	(81,039)	(61,289)	(53,565)
Accounts payable	(4,499)	3,670	(2,076)
Accrued liabilities	4,271	4,976	18,080
Accrued payroll and benefits	19,140	(7,205)	41,462
Operating lease liabilities	(4,410)	(5,320)	(3,139)
Deferred revenue	108,197	92,496	115,142
Other liabilities	1,340	(3,755)	6,136
Net cash used in operating activities	(68,374)	(193,287)	(95,588)
CASH FLOW FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(1,304)	(4,953)	(3,653)
Purchases of intangible assets	(3,505)	(407)	(802)
Capitalization of internal-use software	(13,956)	(13,452)	(5,839)
Purchases of investments	(466,253)	(1,938,007)	(6,000)
Sales and maturities of investments	639,193	925,185	0
Cash paid for acquisitions, net of cash and restricted cash acquired	(13,585)	(281,032)	(3,449)
Net cash provided by (used in) investing activities	140,590	(1,312,666)	(19,743)
CASH FLOW FROM FINANCING ACTIVITIES:
Payments of deferred offering costs	0	(186)	(7,416)
Repayment of debt	0	0	(20,000)
Proceeds from exercise of stock options	28,317	17,335	14,622
Proceeds from issuance of common stock under the employee stock purchase plan	19,147	19,159	11,356
Proceeds from initial public offering and private placement, net of underwriting discounts and commissions	0	0	1,388,562
Net cash provided by financing activities	47,464	36,308	1,387,124
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	0	0	1,146
NET CHANGE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	119,680	(1,469,645)	1,272,939
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH–Beginning of period	202,406	1,672,051	399,112
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH–End of period	322,086	202,406	1,672,051
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Interest paid	7	17	409
Income taxes paid, net of refunds	5,111	500	583
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:
Stock-based compensation capitalized as internal-use software	6,693	4,020	4,779
Property and equipment purchased but not yet paid	98	203	913
Vesting of early exercised stock options	186	103	575
Deferred offering costs accrued but not yet paid	0	0	186
Issuance of common stock and assumed equity awards in connection with acquisitions	0	186,332	120,319
Conversion of redeemable convertible preferred stock to common stock upon initial public offering	$ 0	$ 0	$ 621,139