CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited)
Net of allowance for credit losses	$ 2,260	$ 2,264
Net of accumulated depreciation	185,799	174,698
Net of accumulated amortization	$ 221,321	$ 204,881
Preferred stock, par value per share	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Common stock, par value per share	$ 0.01	$ 0.01
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	30,807,826	30,781,699
Treasury stock, shares	5,048,645	4,995,414