v3.26.1
Consolidated Statements Of Comprehensive Income (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2026
Mar. 31, 2025
Statement of Comprehensive Income [Abstract]        
Net Income Available for Common Stock $ 247,668 $ 216,358 $ 429,313 $ 261,344
Other Comprehensive Income (Loss), Before Tax:        
Unrealized Gain (Loss) on Derivative Financial Instruments Arising During the Period (2,190) (209,046) 46,908 (262,562)
Reclassification Adjustment for Realized (Gains) Losses on Derivative Financial Instruments in Net Income 48,760 8,160 35,485 (21,344)
Other Comprehensive Income (Loss), Before Tax 46,570 (200,886) 82,393 (283,906)
Income Tax Expense (Benefit) Related to Unrealized Gain (Loss) on Derivative Financial Instruments Arising During the Period (586) (56,260) 12,559 (70,663)
Reclassification Adjustment for Income Tax Benefit (Expense) on Realized Losses (Gains) from Derivative Financial Instruments in Net Income 13,055 2,196 9,501 (5,744)
Income Taxes – Net 12,469 (54,064) 22,060 (76,407)
Other Comprehensive Income (Loss) 34,101 (146,822) 60,333 (207,499)
Comprehensive Income $ 281,769 $ 69,536 $ 489,646 $ 53,845