CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Cash flows from operating activities
Net loss	$ (189,024)	$ (255,536)	$ (257,030)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Allowance for expected credit losses	1,868	3,190	3,140
Depreciation and amortization	22,037	17,543	14,344
Amortization of deferred contract acquisition costs	27,849	25,907	21,972
Stock-based compensation expense	214,843	211,271	202,418
Net accretion of discount on marketable securities	(2,129)	(5,510)	(3,391)
Non-cash lease expense	18,265	17,967	18,090
Impairment of long-lived assets	30,716	6,785	5,009
Amortization of discount on revolving credit facility and term loan issuance costs	122	122	122
Changes in operating assets and liabilities:
Accounts receivable	(23,472)	(4,661)	(9,527)
Prepaid expenses and other current assets	(28,823)	(20,427)	(25,594)
Other assets	(631)	(4,400)	(468)
Accounts payable	7,317	4,443	(569)
Accrued expenses and other liabilities	3,408	6,604	(5,206)
Deferred revenue	31,053	31,581	37,623
Operating lease liabilities	(23,038)	(19,954)	(18,864)
Net cash provided by (used in) operating activities	90,361	14,925	(17,931)
Cash flows from investing activities
Purchases of marketable securities	(179,155)	(234,448)	(319,133)
Sales of marketable securities	23,436	0	18
Maturities of marketable securities	206,264	240,601	43,141
Purchases of property and equipment	(3,792)	(5,569)	(7,721)
Capitalized internal-use software costs	(9,587)	(6,713)	(5,440)
Net cash provided by (used in) investing activities	37,166	(6,129)	(289,135)
Cash flows from financing activities
Repayment of term loan	(3,750)	(2,500)	(3,125)
Repurchases of common stock	(132,206)	(78,354)	0
Proceeds from exercise of stock options	5,021	9,101	4,843
Proceeds from employee stock purchase plan	13,012	13,665	15,069
Taxes paid related to net share settlement of equity awards	0	(5)	(10)
Net cash (used in) provided by financing activities	(117,923)	(58,093)	16,777
Effect of foreign exchange rates on cash, cash equivalents, and restricted cash	5,785	(2,502)	389
Net increase (decrease) in cash, cash equivalents, and restricted cash	15,389	(51,799)	(289,900)
Cash, cash equivalents, and restricted cash
Beginning of period	184,864	236,663	526,563
End of period	200,253	184,864	236,663
Reconciliation of cash, cash equivalents, and restricted cash to the consolidated balance sheets
Cash and cash equivalents	199,835	184,728	236,663
Restricted cash	418	136	0
Total cash, cash equivalents, and restricted cash shown in the consolidated statements of cash flows	200,253	184,864	236,663
Supplemental cash flow data
Cash paid for income taxes	5,025	4,254	3,354
Cash paid for interest	2,882	5,938	3,609
Supplemental non-cash investing and financing information
Purchase of property and equipment in accounts payable and accrued expenses	2,501	633	140
Vesting of early exercised stock options	0	0	109
Stock-based compensation expense capitalized for software development	$ 6,877	$ 4,596	$ 3,778