v3.26.1
Financial Instruments (Schedule of Other Investments) (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Sep. 30, 2025
Investment Holdings [Line Items]    
Life Insurance Contracts $ 41,772 $ 44,478
Other Investments 65,870 68,346
Equity Mutual Fund    
Investment Holdings [Line Items]    
Mutual Funds 13,872 13,786
Fixed Income Mutual Fund    
Investment Holdings [Line Items]    
Mutual Funds $ 10,226 $ 10,082