Quarterly report pursuant to Section 13 or 15(d)

Proforma Results of Operations (Detail)

v2.4.0.6
Proforma Results of Operations (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Nov. 30, 2012
Nov. 30, 2011
Business Acquisition, Pro Forma Information [Line Items]    
Net sales, As reported $ 377,248 $ 392,799
Net sales, Pro forma 377,248 415,787
Net earnings, As reported 36,343 37,174
Net earnings, Pro forma $ 36,502 $ 40,097
Basic earnings per share, As reported $ 0.50 $ 0.54
Basic earnings per share, Pro forma $ 0.50 $ 0.59
Diluted earnings per share, As reported $ 0.49 $ 0.50
Diluted earnings per share, Pro forma $ 0.49 $ 0.54