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Long-Term Loans, Net Of Current Maturities (Summary Of Long-Term Loans, Net Of Current Maturities) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Debt Instrument [Line Items]    
Long-term Debt, total $ 224,454 [1] $ 205,526 [1]
Less: current maturities 245 31,781
Long-term debt noncurrent 224,209 173,745
U.S. Dollars | Long-Term Bank Loans
    
Debt Instrument [Line Items]    
Interest percentage Libor +1.35-1.7% [1]  
Long-term Debt, total 223,754 [1] 174,381 [1]
GBP | Long-Term Bank Loans
    
Debt Instrument [Line Items]    
Interest percentage Libor + 1.11-3.28% [1]  
Long-term Debt, total 0 [1] 29,917 [1]
Other Currency | Long-Term Bank Loans
    
Debt Instrument [Line Items]    
Interest percentage Libor + 1.25-3.28 [1]  
Long-term Debt, total $ 700 [1] $ 1,228 [1]
Maximum | U.S. Dollars
    
Debt Instrument [Line Items]    
Interest percentage spread 0.35%  
Maximum | U.S. Dollars | Long-Term Bank Loans
    
Debt Instrument [Line Items]    
Years of maturity 3 years  
Interest percentage spread 1.70%  
Maximum | GBP | Long-Term Bank Loans
    
Debt Instrument [Line Items]    
Years of maturity 3 years  
Interest percentage spread 3.28%  
Maximum | Other Currency | Long-Term Bank Loans
    
Debt Instrument [Line Items]    
Years of maturity 3 years  
Interest percentage spread 3.28%  
Minimum | U.S. Dollars
    
Debt Instrument [Line Items]    
Interest percentage spread 0.17%  
Minimum | U.S. Dollars | Long-Term Bank Loans
    
Debt Instrument [Line Items]    
Years of maturity 2 years  
Interest percentage spread 1.35%  
Minimum | GBP | Long-Term Bank Loans
    
Debt Instrument [Line Items]    
Years of maturity 1 year  
Interest percentage spread 1.11%  
Minimum | Other Currency | Long-Term Bank Loans
    
Debt Instrument [Line Items]    
Years of maturity 1 year  
Interest percentage spread 1.25%  
[1] For covenants see Note 20(F).