Quarterly report pursuant to Section 13 or 15(d)

Acquisitions (Schedule Of Pro Forma Results Of Operations) (Details)

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Acquisitions (Schedule Of Pro Forma Results Of Operations) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Feb. 29, 2012
Feb. 28, 2011
Feb. 29, 2012
Feb. 28, 2011
Acquisitions [Abstract]        
Net sales, As reported $ 378,024 $ 330,698 $ 770,823 $ 649,110
Net sales, Pro forma 382,588 354,337 782,427 729,676
Earnings from continuing operations, As reported 32,175 22,142 69,349 48,803
Earnings from continuing operations, Pro forma $ 32,771 $ 23,666 $ 72,199 $ 54,146
Basic earnings per share from continuing operations, As reported $ 0.47 $ 0.32 $ 1.02 $ 0.72
Basic earnings per share from continuing operations, Pro forma $ 0.48 $ 0.35 $ 1.06 $ 0.79
Diluted earnings per share from continuing operations, As reported $ 0.43 $ 0.30 $ 0.94 $ 0.66
Diluted earnings per share from continuing operations, Pro forma $ 0.44 $ 0.32 $ 0.97 $ 0.73