Quarterly report pursuant to Section 13 or 15(d)

Capital Stock (Details)

v3.7.0.1
Capital Stock (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 9 Months Ended
May 31, 2017
May 31, 2016
May 31, 2017
May 31, 2016
Earnings Per Share [Abstract]        
Net earnings (loss) $ 22,511 $ 21,166 $ 32,551 $ (122,576)
Weighted average common shares outstanding - basic 59,675 58,923 59,339 59,034
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities 727 666 716 0
Diluted 60,402 59,589 60,055 59,034
Basic $ 0.38 $ 0.36 $ 0.55 $ (2.08)
Diluted $ 0.37 $ 0.36 $ 0.54 $ (2.08)
Anti-dilutive securities from stock based compensation plans (excluded from earnings per share calculation) 1,969 1,930 1,981 4,973