Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2023	Apr. 30, 2022
Cash flows from operating activities
Net loss	$ (31,901)	$ (122,561)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	5,616	4,039
Amortization of deferred contract acquisition costs	14,072	10,822
Net amortization on marketable securities	(4,097)	473
Stock-based compensation expense	85,048	101,454
Charitable donation of Class A common stock	4,215	0
Amortization of operating lease right-of-use assets	3,071	2,759
Provision for deferred income taxes	(267)	1,594
Other non-cash charges, net	624	2,849
Changes in operating assets and liabilities:
Accounts receivable	141,557	76,864
Contract assets	660	(18,523)
Deferred contract acquisition costs	(15,499)	(20,761)
Prepaid expenses and other assets	(5,860)	(5,231)
Accounts payable	(2,130)	7,554
Accrued expenses and other liabilities	(10,547)	(12,894)
Accrued compensation and employee benefits	(93,390)	(65,083)
Operating lease liabilities, net	(2,946)	(1,950)
Deferred revenue	(20,885)	(14,289)
Net cash provided by (used in) operating activities	67,341	(52,884)
Cash flows from investing activities
Purchases of marketable securities	(215,391)	(21,918)
Maturities of marketable securities	78,955	14,813
Purchases of property and equipment	(1,870)	(9,692)
Other investing, net	2,754	1,100
Net cash used in investing activities	(135,552)	(15,697)
Cash flows from financing activities
Proceeds from exercise of stock options	1,187	2,823
Payments of tax withholdings on net settlement of equity awards	(25,902)	(17,329)
Net payments of tax withholdings on sell-to-cover equity award transactions	(645)	(10,037)
Proceeds from employee stock purchase plan contributions	4,730	6,356
Net cash used in financing activities	(20,630)	(18,187)
Effect of exchange rate changes	(1,702)	(2,738)
Net decrease in cash and cash equivalents	(90,543)	(89,506)
Cash and cash equivalents - beginning of period	1,402,119	1,768,723
Cash and cash equivalents - end of period	1,311,576	1,679,217
Supplemental disclosure of cash flow information
Cash paid for interest	86	277
Cash paid for income taxes	6,218	2,782
Supplemental disclosure of non-cash investing and financing activities
Reduction in accrued expenses and other liabilities for vesting of early exercised stock options	0	1,355
Property and equipment purchases included in accounts payable	65	779
Receivable from maturities of marketable securities included in prepaid expense and other current assets	20,315	0
Tax withholdings on net settlement of restricted stock units, accrued but not yet paid	$ 1,996	$ 7,599