Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2023
Cash flows from operating activities:
Net loss	$ (1,154,820)	$ (354,158)	$ (277,746)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	28,868	24,305	22,366
Stock-based compensation	913,913	5,715	6,954
Amortization of deferred commissions	90,303	76,530	81,288
Non-cash interest	34,256	10,117	8,504
Deferred income taxes	1,241	1,937	4,447
Other	(7,249)	(2,836)	(1,034)
Changes in operating assets and liabilities:
Accounts receivable	(44,255)	17,157	8,754
Deferred commissions	(128,816)	(107,148)	(135,016)
Prepaid expenses and other assets	(48,818)	2,251	(32,702)
Accounts payable	4,479	(1,012)	(7,491)
Accrued expenses and other liabilities	45,882	22,872	2,144
Deferred revenue	313,244	299,752	338,819
Net cash provided by (used in) operating activities	48,228	(4,518)	19,287
Cash flows from investing activities:
Purchases of property and equipment	(16,885)	(12,333)	(25,017)
Capitalized internal-use software	(9,714)	(7,675)	(9,281)
Purchases of investments	(797,084)	(246,004)	(219,040)
Sale of investments	32,977	7,503	35,910
Maturities of investments	407,264	255,214	92,240
Payment for business combination, net of cash acquired	0	(90,328)	0
Net cash used in investing activities	(383,442)	(93,623)	(125,188)
Cash flows from financing activities:
Proceeds from initial public offering and underwriters' exercise of over-allotment option, net of underwriting discounts and commissions	815,209	0	0
Taxes paid related to net share settlement of equity awards	(432,512)	0	0
Proceeds from exercise of stock options	8,515	3,383	3,816
Proceeds from issuance of common stock under employee stock purchase plan	11,064	0	0
Repurchases of unvested common stock	0	0	(6)
Payments for deferred offering costs, net	(3,545)	(3,734)	(2,725)
Proceeds from issuance of debt, net of discount	0	96,525	171,463
Payments for debt discount costs	(475)	0	0
Payments for debt issuance costs	(233)	(225)	(725)
Net cash provided by financing activities	398,023	95,949	171,823
Effect of exchange rate on cash, cash equivalents, and restricted cash	(6,274)	(1,355)	(1,009)
Net increase (decrease) in cash, cash equivalents, and restricted cash	56,535	(3,547)	64,913
Cash, cash equivalents, and restricted cash, beginning of year	137,059	140,606	75,693
Cash, cash equivalents, and restricted cash, end of year	193,594	137,059	140,606
Supplemental cash flow information:
Cash paid for income taxes, net of refunds	11,938	5,054	6,018
Cash paid for interest	15,026	9,518	4,946
Non-cash investing and financing activities:
Vesting of early exercised common stock options	0	0	164
Transfers of inventory to property and equipment	102	626	13
Property and equipment received, included in payables and accrued but not paid	816	2,207	1,976
Stock-based compensation capitalized in internal-use software	5,227	0	45
Deferred offering costs accrued but not paid	0	953	300
Fair value of common stock issued as consideration for business combination	$ 0	$ 14,070	$ 0