Net Loss Per Share Attributable to Common Stockholders - Schedule of Common Stock Equivalents Excluded from Computation of Diluted Earnings (Loss) Per Share (Details) - shares	3 Months Ended		9 Months Ended
	Apr. 29, 2023	Apr. 30, 2022	Apr. 29, 2023	Apr. 30, 2022
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of diluted earnings (loss) per share (in shares)	19,925,019	21,279,170	19,925,019	21,279,170
Restricted stock units that settle into Class A common stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of diluted earnings (loss) per share (in shares)	13,455,495	16,878,676	13,455,495	16,878,676
Stock Options | Class A Common Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of diluted earnings (loss) per share (in shares)	5,635,847	3,270,987	5,635,847	3,270,987
Stock Options | Class B Common Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of diluted earnings (loss) per share (in shares)	833,677	1,129,507	833,677	1,129,507