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	$ (453,185)	$ (385,914)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Stock-based compensation	340,702	251,826
Depreciation, amortization and accretion	59,748	44,903
Amortization of debt discount and issuance costs	2,895	42,780
Amortization of deferred commissions	39,537	25,135
Deferred income taxes	1,539	(11,506)
Non-cash charitable contributions	2,014	3,663
Loss on conversion of debt	0	179
Gain on strategic investments	(1,965)	(5,271)
Other, net	461	(290)
Changes in operating assets and liabilities:
Accounts receivable	74,015	(14,798)
Deferred commissions	(50,123)	(55,102)
Prepaid expenses and other assets	(2,236)	718
Operating lease right-of-use assets	13,568	10,732
Accounts payable	24,632	(2,044)
Accrued compensation	(55,219)	(6,507)
Accrued expenses and other liabilities	1,144	10,092
Operating lease liabilities	(12,807)	(13,489)
Deferred revenue	15,062	158,360
Net cash provided by (used in) operating activities	(218)	53,467
Cash flows from investing activities:
Capitalization of internal-use software costs	(5,396)	(378)
Purchases of property and equipment	(7,493)	(4,034)
Purchases of securities available for sale and other	(571,081)	(923,507)
Proceeds from maturities and redemption of securities available for sale	521,815	763,607
Proceeds from sales of securities available for sale and other	0	906
Purchases of intangible assets	(2,497)	(113)
Payments for business acquisitions, net of cash acquired	(4,060)	(148,042)
Net cash used in investing activities	(68,712)	(311,561)
Cash flows from financing activities:
Payments for conversions of convertible senior notes	(6)	(15)
Proceeds from hedges related to convertible senior notes	1	2
Proceeds from stock option exercises	8,977	31,829
Proceeds from shares issued in connection with employee stock purchase plan	18,960	17,417
Net cash provided by financing activities	27,932	49,233
Effects of changes in foreign currency exchange rates on cash, cash equivalents and restricted cash	(6,072)	193
Net decrease in cash, cash equivalents and restricted cash	(47,070)	(208,668)
Cash, cash equivalents and restricted cash at beginning of period	272,656	448,630
Cash, cash equivalents and restricted cash at end of period	225,586	239,962
Cash paid during the period for:
Interest	2,840	2,864
Income taxes	3,303	1,642
Non-cash activities:
Issuance of common stock and value of equity awards assumed in connection with business combination	0	5,409,344
Issuance of common stock for conversions of convertible senior notes	39,564	126,144
Benefit from exercise of hedges related to convertible senior notes	17,502	79,641
Common stock issued as charitable contribution	2,014	0
Operating lease right-of-use assets exchanged for lease liabilities	8,442	7,696
Reconciliation of cash, cash equivalents and restricted cash within the condensed consolidated balance sheets to the amounts shown in the condensed consolidated statements of cash flows above:
Cash and cash equivalents	216,022	225,265
Restricted cash, current included in prepaid expenses and other current assets	2,103	5,037
Restricted cash, noncurrent included in other assets	7,461	9,660
Total cash, cash equivalents and restricted cash	$ 225,586	$ 239,962