Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2023
CASH FLOW FROM OPERATING ACTIVITIES:
Net loss	$ (288,441)	$ (338,693)	$ (378,678)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	42,766	38,912	29,721
Amortization of deferred contract acquisition costs	66,640	48,682	36,417
Non-cash operating lease costs	4,079	4,020	3,559
Stock-based compensation expense	267,531	216,870	164,466
Accretion of discounts, and amortization of premiums on investments, net	(13,482)	(19,943)	(12,217)
Other	1,257	1,934	(1,187)
Changes in operating assets and liabilities, net of effects of acquisitions:
Accounts receivable	(21,174)	(61,949)	(44,442)
Prepaid expenses and other assets	1,746	(1,207)	(14,499)
Deferred contract acquisition costs	(90,946)	(81,039)	(61,289)
Accounts payable	1,405	(4,499)	3,670
Accrued liabilities and other liabilities	5,075	5,611	1,221
Accrued payroll and benefits	5,286	19,140	(7,205)
Operating lease liabilities	(4,954)	(4,410)	(5,320)
Deferred revenue	56,940	108,197	92,496
Net cash provided by (used in) operating activities	33,728	(68,374)	(193,287)
CASH FLOW FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(1,860)	(1,304)	(4,953)
Purchases of intangible assets	(155)	(3,505)	(407)
Capitalization of internal-use software	(25,121)	(13,956)	(13,452)
Purchases of investments	(804,498)	(466,253)	(1,938,007)
Sales and maturities of investments	737,074	639,193	925,185
Cash paid for acquisitions, net of cash and restricted cash acquired	(123,837)	(13,585)	(281,032)
Net cash provided by (used in) investing activities	(218,397)	140,590	(1,312,666)
CASH FLOW FROM FINANCING ACTIVITIES:
Payments of deferred offering costs	0	0	(186)
Repurchase of early exercised stock options	(21)	0	0
Proceeds from exercise of stock options	33,406	28,317	17,335
Proceeds from issuance of common stock under the employee stock purchase plan	22,500	19,147	19,159
Net cash provided by financing activities	55,885	47,464	36,308
NET CHANGE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	(128,784)	119,680	(1,469,645)
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH–Beginning of period	322,086	202,406	1,672,051
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH–End of period	193,302	322,086	202,406
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Interest paid	30	7	17
Income taxes paid, net of refunds	6,841	5,111	500
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:
Stock-based compensation capitalized as internal-use software	12,761	6,693	4,020
Property and equipment purchased but not yet paid	63	98	203
Vesting of early exercised stock options	0	186	103
Issuance of common stock and assumed equity awards in connection with acquisitions	$ 23,739	$ 0	$ 186,332