EARNINGS PER SHARE (Schedule of the Computation of Net Income Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Nov. 30, 2023	Nov. 30, 2022
Earnings Per Share [Abstract]
Net income	$ 38,047	$ 32,905
Less: Allocation of income to unvested stockholders	(631)	(586)
Net income available for distribution	$ 37,416	$ 32,319
Basic weighted average shares outstanding (in shares)	30,269	30,713
Add dilutive effect of performance stock units (two-class method) (in shares)	0	6
Diluted average shares outstanding (in shares)	30,269	30,719
Basic net income per share (in dollars per share)	$ 1.24	$ 1.05
Diluted net income per share (in dollars per share)	$ 1.24	$ 1.05