Quarterly report pursuant to Section 13 or 15(d)

Other Comprehensive Income (Details)

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Other Comprehensive Income (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Nov. 30, 2011
Nov. 30, 2010
Other Comprehensive Income [Abstract]    
Net earnings $ 37,174 $ 25,890
Foreign currency translation adjustment (32,568) 9,563
Changes in net unrealized gains and losses, net of tax 182 106
Comprehensive income $ 4,788 $ 35,559