CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) - USD ($) $ in Thousands	Feb. 28, 2022	Aug. 31, 2021
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 5,446	$ 5,553
Common stock, par value (in USD per share)	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	129,060,664	129,060,664
Common stock, shares outstanding	121,495,868	120,586,589
Treasury stock, shares	7,564,796	8,474,075