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Share Transactions (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Feb. 08, 2023
Share Transactions [Line Items]          
Repurchase amount $ 28.9   $ 28.9    
Aggregate repurchased shares 719,840   719,840    
Percentage of shares outstanding 26.40%   26.40%    
Remaining amount authorized $ 6.1   $ 6.1    
Average price per share [1]     $ 0.23 $ 0.8  
Transferred into treasury      
Minimum [Member]          
Share Transactions [Line Items]          
Repurchase amount         $ 25.0
Maximum [Member]          
Share Transactions [Line Items]          
Repurchase amount         $ 35.0
Common Stock [Member]          
Share Transactions [Line Items]          
Average price per share     $ 40.15    
Shares transferred into treasury stock 15,909 712 15,909 53,935  
Treasury Stock [Member]          
Share Transactions [Line Items]          
Shares transferred into treasury stock     15,909    
[1] The amount shown at this caption reflected the balance derived from the other figures in the schedule. The amount shown at this caption for a share outstanding throughout the period may not agree with the repurchase of common stock due to the timing of the repurchase of the Company’s shares.