Earnings Per Share - Schedule of Earnings Per Share. Basic and Dilutive (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Numerator:
Income from continuing operations	$ 21,728	$ 24,408
Loss from discontinued operations, net of tax	0	(77)
Net income	$ 21,728	$ 24,331
Denominator:
Basic weighted-average shares (in shares)	30,595	30,219
Dilutive effect of restricted stock awards (in shares)	379	257
Dilutive effect of stock options (in shares)	8	4
Dilutive weighted-average shares (in shares)	30,982	30,480
Basic income per share:
Continuing operations (in USD per share)	$ 0.71	$ 0.81
Discontinued operations (in USD per share)	0	0
Total (in USD per share)	0.71	0.81
Diluted income per share:
Continuing operations (in USD per share)	0.70	0.80
Discontinued operations (in USD per share)	0	0
Total (in USD per share)	$ 0.70	$ 0.80