Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Earnings Per Share [Abstract]
Net income (loss)	$ 38,010	$ (101,659)	$ 84,453
Income allocated to participating securities	(33)	51	(45)
Net income available to common stockholders, basic	37,977	(101,608)	84,408
Net Income available to common stockholders, diluted	$ 37,977	$ (101,608)	$ 84,408
Total basic average common shares outstanding	130,670,780	133,556,864	135,700,447
Effect of dilutive stock options	0	0	0
Total diluted average common shares outstanding	130,670,780	133,556,864	135,700,447
Net EPS
Basic	$ 0.29	$ (0.76)	$ 0.62
Diluted	$ 0.29	$ (0.76)	$ 0.62
Antidilutive stock options, excluded from the diluted average common shares outstanding calculation	326,308	369,421	516,603