Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share (Detail)

v2.4.0.8
Earnings Per Share (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Feb. 28, 2014
Feb. 28, 2013
Feb. 28, 2014
Feb. 28, 2013
Earnings Per Share [Abstract]        
Earnings from continuing operations $ 22,304 $ 25,834 $ 55,309 $ 56,385
Weighted average common shares outstanding - basic 72,227 72,946 72,656 72,869
Net effect of dilutive securities—stock based compensation plans 1,546 1,470 1,736 1,474
Weighted average common shares outstanding - diluted 73,773 74,416 74,392 74,343
Basic (in dollars per share) $ 0.31 $ 0.35 $ 0.76 $ 0.77
Diluted (in dollars per share) $ 0.30 $ 0.35 $ 0.74 $ 0.76
Anti-dilutive securities-stock based compensation plans (excluded from earnings per share calculation) 403 759 404 774