Earnings Per Share - Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Numerator
Net income attributable to common stockholders	$ 9,843	$ 1,892
Denominator
Weighted average number of basic common shares outstanding (in shares)	51,892,426	51,824,948
Effect of dilutive securities:
Restricted stock grants (in shares)	538,438	295,636
Weighted average number of diluted common shares outstanding (in shares)	52,430,864	52,120,584
Net income per diluted common share attributable to common stockholders (in dollars per share)	$ 0.19	$ 0.04