XML 19 R37.htm IDEA: XBRL DOCUMENT v2.4.0.6
Fair Value Measurements (Schedule Of Financial Assets And Liabilities Measured At Fair Value) (Details) (USD $)
In Thousands, unless otherwise specified
Nov. 30, 2012
Aug. 31, 2012
Nov. 30, 2011
Aug. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Cash and cash equivalents $ 152,173 $ 143,444 $ 108,731 $ 108,167
Derivative assets 128 12 282  
Derivative liabilities (404) (563) (311)  
Level 1
        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Cash and cash equivalents 152,173 143,444 108,731  
Level 2
        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative assets 128 12 282  
Derivative liabilities $ (404) $ (563) $ (311)