v2.3.0.11
Fair Value Measurements (Details 2) (USD $)
In Thousands
Jul. 30, 2011
Quoted Prices in Active Markets for Identical Assets or Liabilities Level 1
 
ASSETS  
Money market funds $ 149,363
Derivative assets 0
LIABILITIES  
Derivative liabilities 0
Significant Other Observable Inputs Level 2
 
ASSETS  
Money market funds 0
Derivative assets 46,647
LIABILITIES  
Derivative liabilities (32,745)
Unobservable Inputs Level 3
 
ASSETS  
Money market funds 0
Derivative assets 0
LIABILITIES  
Derivative liabilities $ 0