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Income Taxes - Significant Components of Company's Deferred Tax Assets and Liabilities (Detail) - USD ($)
Sep. 30, 2023
Sep. 24, 2022
Deferred tax assets    
Net operating loss carryforwards $ 55,300,000 $ 91,400,000
Capital losses 55,000,000.0 54,300,000
Capitalized research and development 70,100,000 20,000,000.0
Non-deductible accruals 32,700,000 30,100,000
Non-deductible reserves 42,800,000 44,600,000
Stock-based compensation 19,800,000 18,800,000
Tax credits 7,100,000 8,900,000
Nonqualified deferred compensation plan 13,500,000 13,200,000
Lease liability 14,000,000.0 11,800,000
Other temporary differences 14,300,000 0
Deferred tax assets, gross 324,600,000 293,100,000
Less: valuation allowance (114,700,000) (115,300,000)
Deferred tax assets, net 209,900,000 177,800,000
Deferred tax liabilities    
Depreciation and amortization (160,300,000) (240,600,000)
Right of use asset (13,200,000) (11,400,000)
Other temporary differences 0 (400,000)
Deferred tax liabilities, net (173,500,000) (252,400,000)
Deferred Tax Assets, Net $ 36,400,000  
Net deferred tax liabilities   $ 74,600,000