Net Income (Loss) Per Share Attributable to Common Stockholders - Antidilutive Securities (Details) - shares	12 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Oct. 02, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially antidilutive securities (in shares)	19,342,339	12,007,847	12,590,730
Stock options to purchase common stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially antidilutive securities (in shares)	9,449,904	6,877,530	9,030,004
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially antidilutive securities (in shares)	9,742,444	5,041,645	3,505,140
Performance Stock Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially antidilutive securities (in shares)	149,991	88,672	55,586