XML 21 R5.htm IDEA: XBRL DOCUMENT v3.10.0.1
CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Aug. 31, 2018
Aug. 31, 2017
Statement of Financial Position [Abstract]    
Allowance for doubtful accounts $ 4,489 $ 4,186
Common stock, par value $ 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 117,015,558 115,793,736
Treasury stock, shares 12,045,106 13,266,928