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Stock-Based Compensation- Additional Information (Details) - USD ($)	1 Months Ended	12 Months Ended
	Jul. 31, 2018	Sep. 28, 2024	Sep. 30, 2023	Oct. 01, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		0	0	0
Unrecognized stock-based compensation expense		$ 0	$ 0
Stock options to purchase common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		48 months
Exercisable period		10 years
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		4 years
Unrecognized stock-based compensation expense		$ 115,400,000	111,600,000
Unrecognized stock-based compensation expense, period of recognition		2 years 4 months 24 days
Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense		$ 200,000	$ 300,000
Unrecognized stock-based compensation expense, period of recognition		1 year 6 months	1 year 2 months 12 days
Performance achievement adjustments (in shares)		25,057
2018 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of outstanding stock maximum	5.00%
Shares reserved for future issuance (in shares)		40,953,108

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