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Subsequent Events (Additional Information) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Oct. 16, 2025
Oct. 14, 2025
Sep. 27, 2025
Sep. 28, 2024
Sep. 30, 2023
Subsequent Event [Line Items]          
Total assets     $ 2,296,274 $ 2,272,761  
Asset Acquisition, Consideration Transferred, Contingent Consideration     (3,000) 0 $ 0
Operating/Reportable Segments [Member]          
Subsequent Event [Line Items]          
Total assets     $ 1,984,583 $ 1,966,292  
Subsequent Event [Member] | Propane Retailer Headquartered In California [Member]          
Subsequent Event [Line Items]          
Business acquisition, cost of acquired, cash paid $ 10,000 $ 14,000      
Subsequent Event [Member] | Propane Retailer Headquartered In California [Member] | Noncompete Agreements [Member]          
Subsequent Event [Line Items]          
Business acquisition, cost of acquired, cash paid $ 1,000 $ 500      
Subsequent Event [Member] | CALIFORNIA | Propane Assets [Member]          
Subsequent Event [Line Items]          
Asset Acquisition Date Oct. 16, 2025 Oct. 14, 2025