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Pay vs Performance Disclosure - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Pay vs Performance Disclosure        
Net Income Available for Common Stock $ 92,620 $ 108,158 $ 403,189 $ 407,879