v3.26.1
Financial Instruments (Schedule of Cash Flow Hedges) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Derivative Gain or (Loss) Recognized in Other Comprehensive Income (Loss) on the Consolidated Statement of Comprehensive Income (Loss) $ 69,729 $ 148,888 $ 116,637 $ (113,675)
Amount of Derivative Gain or (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) on the Consolidated Balance Sheet into the Consolidated Statement of Income 58,170 2,258 22,684 23,601
Commodity Contracts | Income Statement Location [Axis]: us-gaap:Revenues        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Derivative Gain or (Loss) Recognized in Other Comprehensive Income (Loss) on the Consolidated Statement of Comprehensive Income (Loss) 70,098 147,594 117,239 (113,145)
Amount of Derivative Gain or (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) on the Consolidated Balance Sheet into the Consolidated Statement of Income 58,258 2,515 22,959 24,409
Foreign Currency Contracts | Income Statement Location [Axis]: us-gaap:Revenues        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Derivative Gain or (Loss) Recognized in Other Comprehensive Income (Loss) on the Consolidated Statement of Comprehensive Income (Loss) (369) 1,294 (602) (530)
Amount of Derivative Gain or (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) on the Consolidated Balance Sheet into the Consolidated Statement of Income $ (88) $ (257) $ (275) $ (808)