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Acquisitions and Dispositions - 2024 Acquisitions Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Oct. 24, 2023
Dec. 11, 2018
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2022
Business Acquisition [Line Items]          
Acquire productive assets   $ 554 $ 24,600 $ 40,384 $ 24,003
Vacant Lot, Central City, Colorado          
Business Acquisition [Line Items]          
Acquire productive assets $ 65        
Administartive Building, Central City, Colorado          
Business Acquisition [Line Items]          
Acquire productive assets $ 1,000