Annual report pursuant to Section 13 and 15(d)

Long-Term Debt - Note Payable to Store Capital Acquisitions, LLC - Additional Information (Details)

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Long-Term Debt - Note Payable to Store Capital Acquisitions, LLC - Additional Information (Details) - USD ($)
12 Months Ended
Jun. 14, 2016
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2021
Debt Instrument [Line Items]        
Proceeds from note payable   $ 15,773,000 $ 17,000,000  
Period subject to a decreasing prepayment penalty   5 years    
Store Capital Acquisitions        
Debt Instrument [Line Items]        
Total notes payable - related parties $ 10,000,000      
Proceeds from sale of land 644,000      
Proceeds from note payable $ 9,400,000      
Debt instrument, term 15 years      
Annual lease rate $ 60,000      
Debt stated interest rate (in percent)       9.30%
Period subject to fixed prepayment period 5 years      
Prepayment penalty (percent) 5.00%      
Decrease in prepayment penalty (percent) 1.00%      
Period after which there is no prepayment penalty 10 years      
Debt issuance costs $ 458,000      
Letters of credit outstanding, amount   $ 9,100,000 $ 9,200,000