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Stockholders' Equity (Details 1) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Aug. 30, 2013
Aug. 31, 2012
Aug. 30, 2013
Aug. 31, 2012
Gross unrealized gains, available-for-sale securities [Abstract]        
Beginning balance, unrealized gains on available-for-sale securities     $ 14,699  
Gross unrealized gains on available for sale securities, increase or decrease     (4,905)  
Gross unrealized gains on available for sale securities, reclassification adjustments     (3,386)  
Ending balance, unrealized gains on available-for-sale securities 6,408   6,408  
Gross unrealized losses, available-for-sale securities [Abstract]        
Beginning balance, unrealized losses on available-for-sale securities     (260)  
Gross unrealized losses on available for sale securities increase or decrease     (7,405)  
Gross unrealized losses on available for sale securities, reclassification adjustments     1,060  
Ending balance, unrealized losses on available-for-sale securities (6,605)   (6,605)  
Net unrealized gains on available-for-sale securities [Abstract]        
Beginning Balance, net unrealized gains on available-for-sale securities     14,439  
Net unrealized gains on available for sale securities, increase or decrease (7,757) 5,688 (12,310) 11,255
Net unrealized gains on available for sale securities, reclassification adjustments 46 (897) (2,326) (1,807)
Ending Balance, net unrealized gains on available-for-sale securities (197)   (197)  
Net unrealized gains on derivatives designated as hedging instuments [Abstract]        
Beginning balance, net unrealized gains on derivative instruments designated as hedging instruments     6,604  
Net unrealized gains on derivative instruments designated as hedging instruments, increase or decrease (2,947) (2,621) 29,713 20,151
Net unrealized gains on derivative instruments designated as hedging instruments, reclassification adjustments (10,487) (7,692) (32,880) (28,701)
Ending balance, net unrealized gains on derivative instruments designated as hedging instruments 3,437   3,437  
Cumulative foreign currency translation adjustments [Abstract]        
Beginning balance, cumulative foreign currency translation adjustments     9,669  
Cumulative foreign currency translation adjustment, increase or decrease 6,651 7,417 57 (8,337)
Cumulative foreign currency translation adjustment, reclassification adjustments     0  
Ending balance, cumulative foreign currency translation adjustments 9,726   9,726  
Accumulated other comprehensive income totals [Abstract]        
Beginning balance, total accumulated other comprehensive income, net of taxes     30,712 [1]  
Accumulated other comprehensive income, increase or decrease     17,460  
Accumulated other comprehensive income, reclassification adjustments     (35,206)  
Ending balance, total accumulated other comprehensive income, net of taxes $ 12,966   $ 12,966  
[1] The Condensed Consolidated Balance Sheet as of November 30, 2012 has been derived from the audited Consolidated Financial Statements at that date but does not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements.