CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jul. 31, 2022	Jul. 31, 2021
Cash flows from operating activities:
Net loss	$ (388,600)	$ (392,939)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	26,113	10,068
Non-cash operating lease costs	21,239	17,040
Amortization of deferred commissions	26,971	17,157
Stock-based compensation, net of amounts capitalized	381,674	315,005
Net amortization of premiums on investments	12,876	25,351
Net unrealized losses (gains) on strategic investments in equity securities	32,032	(8,060)
Deferred income tax	(26,664)	0
Other	2,074	2,782
Changes in operating assets and liabilities, net of effects of a business combination:
Accounts receivable	239,569	55,896
Deferred commissions	(39,906)	(33,931)
Prepaid expenses and other assets	(28,177)	(70,088)
Accounts payable	6,225	3,722
Accrued expenses and other liabilities	10,455	23,720
Operating lease liabilities	(18,186)	(15,992)
Deferred revenue	(8,649)	66,012
Net cash provided by operating activities	249,046	15,743
Cash flows from investing activities:
Purchases of property and equipment	(11,261)	(9,927)
Capitalized internal-use software development costs	(11,540)	(4,824)
Cash paid for a business combination, net of cash and cash equivalents acquired	(177,925)	0
Purchases of intangible assets	(700)	(11,182)
Purchases of investments	(1,925,257)	(1,988,633)
Sales of investments	43,932	392,312
Maturities and redemptions of investments	1,696,512	1,394,223
Net cash used in investing activities	(386,239)	(228,031)
Cash flows from financing activities:
Proceeds from exercise of stock options	23,796	65,865
Proceeds from issuance of common stock under employee stock purchase plan	26,094	26,398
Taxes paid related to net share settlement of equity awards	(84,109)	0
Net cash provided by (used in) financing activities	(34,219)	92,263
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	(7,388)	215
Net decrease in cash, cash equivalents, and restricted cash	(178,800)	(119,810)
Cash, cash equivalents, and restricted cash—beginning of period	1,102,534	835,193
Cash, cash equivalents, and restricted cash—end of period	923,734	715,383
Supplemental disclosures of non-cash investing and financing activities
Property and equipment included in accounts payable and accrued expenses	5,661	1,190
Stock-based compensation included in capitalized software development costs	12,780	13,058
Issuance of common stock in connection with a business combination	438,916	0
Purchases of intangible assets included in accrued expenses and other liabilities	0	4,544
Unpaid taxes related to net share settlement of equity awards included in accrued expenses and other current liabilities	2,025	0
Reconciliation of cash, cash equivalents, and restricted cash:
Cash and cash equivalents	906,663	698,548
Restricted cash—included in other assets and prepaid expenses and other current assets	17,071	16,835
Total cash, cash equivalents, and restricted cash	$ 923,734	$ 715,383