CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2021
Cash flows from operating activities
Net loss	$ (277,862)	$ (1,339,097)	$ (907,980)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities
Depreciation and amortization	99,470	99,145	93,666
Amortization of deferred commissions	111,205	144,850	142,095
Amortization of investment premiums (accretion of discounts), net	(4,652)	1,741	(667)
Loss on strategic investment	0	0	4,500
Amortization of debt discount and issuance costs	10,279	140,847	98,977
Gain on extinguishment of convertible senior notes	0	0	(6,952)
Repurchase of convertible senior notes attributable to the accreted interest related to debt discount	0	0	(22,149)
Losses on facility exits	10,000	47,124	0
Non-cash operating lease costs	324	9,191	25,410
Stock-based compensation	789,138	794,818	618,655
Deferred income taxes	(2,695)	(579)	(3,590)
Other	879	785	1,045
Changes in operating assets and liabilities, net of acquisitions
Accounts receivable, net	(337,177)	(87,491)	(153,724)
Prepaid expenses and other assets	42,075	(8,215)	(45,476)
Deferred commissions	(167,496)	(242,080)	(160,001)
Accounts payable	(43,907)	33,115	(9,082)
Accrued compensation	(39,402)	114,966	(3,805)
Accrued expenses and other liabilities	(15,337)	90,079	3,814
Deferred revenue	274,788	328,849	134,402
Net cash provided by (used in) operating activities	449,630	128,048	(190,862)
Cash flows from investing activities
Purchases of property and equipment	(13,620)	(10,671)	(37,107)
Capitalized software development costs	(8,782)	(9,361)	(14,602)
Purchases of marketable securities	(1,536,558)	(388,741)	(87,135)
Maturities of marketable securities	515,950	178,124	995,878
Purchases of strategic investments	(6,734)	(23,750)	0
Acquisitions, net of cash acquired	(21,950)	(80,333)	(56,383)
Other investment activities	1,534	980	(3,461)
Net cash provided by (used in) investing activities	(1,070,160)	(333,752)	797,190
Cash flows from financing activities
Proceeds from the exercise of stock options	1,457	2,430	3,473
Proceeds from employee stock purchase plan	78,318	79,938	79,949
Proceeds from the issuance of convertible senior notes, net of issuance costs	0	981,920	1,246,544
Purchase of capped calls	0	0	(137,379)
Partial repurchase of convertible senior notes	0	0	(668,929)
Repurchases of common stock	0	(1,000,000)	0
Taxes paid related to net share settlement of equity awards	(197,349)	(200,957)	(140,776)
Net cash provided by (used in) financing activities	(117,574)	(136,669)	382,882
Effect of exchange rate changes on cash and cash equivalents	0	0	3,201
Net increase (decrease) in cash and cash equivalents	(738,104)	(342,373)	992,411
Cash and cash equivalents at beginning of period	1,428,691	1,771,064	778,653
Cash and cash equivalents at end of period	690,587	1,428,691	1,771,064
Supplemental disclosures
Cash paid for income taxes	17,131	5,401	9,760
Cash paid for interest	42,111	24,900	29,654
Non-cash investing and financing activities
Increase in accrued purchases of property and equipment	1,348	4,273	4,148
Equity consideration for acquisitions	$ 0	$ 939	$ 7,254