CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands		12 Months Ended
		Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2020
Cash flows from operating activities:
Net loss		$ (797,538)	$ (1,034,260)	$ (872,883)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities
Depreciation and amortization		87,952	94,373	93,773
Stock-based compensation		343,246	358,545	351,998
Change in fair value of derivative liability		198,038	269,265
Loss on debt extinguishment		64,910
Amortization of debt discount and issuance cost		40,233	63,859	31,313
Operating lease cost, net of accretion		36,905	34,757	30,374
Impairment and early exit of lease-related assets		597	1,420	3,002
Non-cash interest expense		19,270	16,074
Other		9,282	6,380	324
Changes in operating assets and liabilities:
Accounts receivable, net		60,998	64,483	4,334
Deferred commissions		(24,170)	(127,891)	(61,816)
Prepaid expenses and other assets		(36,166)	4,057	10,089
Accounts payable		(1,461)	(5,762)	(16,574)
Accrued compensation and benefits		(19,674)	50,916	18,765
Accrued expenses and other liabilities		4,049	14,824	3,400
Operating leases, net		(46,773)	(37,582)	(28,394)
Deferred revenue		127,845	126,732	272,410
Net cash (used in) provided by operating activities		67,543	(99,810)	(159,885)
Cash flows from investing activities:
Maturities of investments		1,058,116	784,176	645,828
Purchases of investments		(1,081,246)	(1,392,737)	(607,194)
Sales of investments		17,999	70,055	75,413
Purchases of property and equipment		(49,058)	(58,647)	(89,488)
Net cash provided by (used in) investing activities		(54,189)	(597,153)	24,559
Cash flows from financing activities:
Payments of debt extinguishment costs		(14,709)
Proceeds from unwinding of convertible note hedges		39,880
Payments for unwinding of warrants		(18,390)
Proceeds from sales of shares through employee equity incentive plans		67,826	65,766	57,797
Proceeds from the issuance of convertible notes, net of issuance costs		88,687	723,617
Repurchases of common stock		(58,570)	(125,079)
Payment of finance lease obligations		(1,089)	(459)
Net cash provided by financing activities		103,635	663,845	57,797
Net (decrease) increase in cash, cash equivalents and restricted cash		116,989	(33,118)	(77,529)
Cash, cash equivalents and restricted cash—beginning of period		288,873	321,991	399,520
Cash, cash equivalents and restricted cash—end of period		405,862	288,873	321,991
Restricted cash	[1]	3,012	3,150	3,254
Cash and cash equivalents—end of period		402,850	285,723	318,737
Supplemental disclosures of cash flow information:
Cash paid for income taxes		20,353	16,639	16,625
Supplemental disclosures of non-cash investing and financing information:
Purchases of property and equipment included in accounts payable and accrued liabilities		17,139	12,832	$ 4,630
Finance lease liabilities arising from obtaining right-of-use assets		$ 10,491	$ 8,299

[1] Included within other assets—non-current in the consolidated balance sheets.