Overview and Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Aug. 01, 2021	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2020	Sep. 30, 2021	Sep. 24, 2020	Jan. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impairment losses		$ 0	$ 0	$ 0
Foreign currency transaction gain (loss), before tax		(3,200)	(8,900)	(9,400)
Advertising expense		13,700	22,100	$ 38,700
Accumulated deficit	$ 100,600	$ 4,368,026	$ 3,627,355
Adjustments to Additional Paid in Capital, Other	148,600
Partner [Member] | Revenue Benchmark [Member] | Customer Concentration Risk [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Interest rate, stated percentage		10.00%	10.00%	10.00%
2023 Convertible Senior Notes | Convertible Debt
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Closing trading price		$ 100
Interest rate, stated percentage		0.00%					0.00%
2026 Convertible Senior Notes | Convertible Debt
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Interest rate, stated percentage		2.50%				2.50%
2027 Convertible Senior Notes
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Interest rate, stated percentage		0.25%
2027 Convertible Senior Notes | Convertible Debt
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Closing trading price		$ 100
Interest rate, stated percentage		0.25%			0.25%
Convertible Notes Payable [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase in carrying value of the notes outstanding	$ 48,000
ASU 2020-06
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Change in accounting principle, accounting standards update, adopted		true
Change in accounting principle, accounting standards update, adoption date		Aug. 01, 2021
Change in accounting principle, accounting standards update, immaterial effect		true	false
Hardware
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Product warranty duration		1 year
Product warranty replacement period (in years)		3 years
Software
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Product warranty duration		90 days