Quarterly report pursuant to Section 13 or 15(d)

Capital Stock (Details)

v3.5.0.2
Capital Stock (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 9 Months Ended
May 31, 2016
May 31, 2015
May 31, 2016
May 31, 2015
Earnings Per Share [Abstract]        
Net earnings (loss) $ 21,166 $ 37,958 $ (122,576) $ (2,206)
Weighted average common shares outstanding - basic 58,923 59,617 59,034 61,911
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities 666 626 0 0
Diluted 59,589 60,243 59,034 61,911
Basic $ 0.36 $ 0.64 $ (2.08) $ (0.04)
Diluted $ 0.36 $ 0.63 $ (2.08) $ (0.04)
Anti-dilutive securities from stock based compensation plans (excluded from earnings per share calculation) 1,930 2,256 4,973 4,662