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BORROWINGS - Senior Secured Notes Narrative (Details) - USD ($)
Mar. 18, 2022
Jul. 15, 2021
Sep. 27, 2024
Sep. 29, 2023
Sep. 30, 2020
Debt Instrument          
Long-term debt excluding current maturities, gross     $ 400,100,000 $ 446,500,000  
Senior Secured Notes | Secured Debt          
Debt Instrument          
Debt instrument, face amount         $ 300,000,000
Contractual interest rate (as a percent)         7.875%
Debt redeemed $ 27,000,000 $ 30,000,000      
Repayments of senior debt 28,700,000 31,500,000      
Loss related to redemption premium and write-offs $ 1,200,000 $ 1,400,000      
Debt instrument, redemption price, percentage of principal amount redeemed 103.00% 103.00%      
Long-term debt excluding current maturities, gross     $ 243,000,000.0 $ 243,000,000.0