Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Oct. 31, 2023	Oct. 31, 2022
CASH FLOW FROM OPERATING ACTIVITIES:
Net loss	$ (266,711)	$ (284,998)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	28,549	20,097
Amortization of deferred contract acquisition costs	34,699	25,871
Non-cash operating lease costs	3,010	2,547
Stock-based compensation expense	163,308	118,318
Accretion of discounts, and amortization of premiums on investments, net	(16,289)	(5,620)
Net gain on strategic investments	(2,706)	0
Other	637	(446)
Accounts receivable	18,846	(12,699)
Prepaid expenses and other assets	10,075	(11,072)
Deferred contract acquisition costs	(47,289)	(38,163)
Accounts payable	1,935	(1,377)
Accrued liabilities	(220)	261
Accrued payroll and benefits	(1,998)	(18,786)
Operating lease liabilities	(4,650)	(4,296)
Deferred revenue	16,311	40,609
Other liabilities	301	(1,464)
Net cash used in operating activities	(62,192)	(171,218)
CASH FLOW FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(1,117)	(4,827)
Purchases of intangible assets	(3,436)	(247)
Capitalization of internal-use software	(9,687)	(10,279)
Purchases of investments	(462,539)	(1,728,162)
Sales and maturities of investments	504,340	778,555
Cash paid for acquisition, net of cash and restricted cash acquired	0	(281,032)
Net cash provided by (used in) investing activities	27,561	(1,245,992)
CASH FLOW FROM FINANCING ACTIVITIES:
Payments of deferred offering costs	0	(186)
Proceeds from exercise of stock options	17,366	11,282
Proceeds from issuance of common stock under the employee stock purchase plan	6,416	8,682
Net cash provided by financing activities	23,782	19,778
NET CHANGE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	(10,849)	(1,397,432)
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH–Beginning of period	202,406	1,672,051
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH–End of period	191,557	274,619
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Income taxes paid, net of refunds	3,021	215
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:
Stock-based compensation capitalized as internal-use software	4,544	2,668
Property and equipment purchased but not yet paid	78	205
Internal-use software capitalized but not yet paid	25	0
Patents capitalized but not yet paid	35	0
Vesting of early exercised stock options	178	18
Issuance of common stock and assumed equity awards in connection with acquisition	$ 0	$ 186,332