Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements (Fair Value Of Other Financial Liabilities) (Details)

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Fair Value Measurements (Fair Value Of Other Financial Liabilities) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Interest Rate Derivative Liabilities, at Fair Value $ 1,296 $ 755 $ 0
Fair Value, Measurements, Recurring [Member] | Fair Value, Estimate Not Practicable, Carrying (Reported) Amount [Member]
      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Interest Rate Derivative Assets, at Fair Value 574    
Interest Rate Derivative Liabilities, at Fair Value   755  
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value 1,032 6,832  
Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Interest Rate Derivative Assets, at Fair Value 0    
Interest Rate Derivative Liabilities, at Fair Value   0  
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value 0 0  
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Interest Rate Derivative Assets, at Fair Value 574    
Interest Rate Derivative Liabilities, at Fair Value   755  
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value 0 0  
Fair Value, Measurements, Recurring [Member] | Level 3 [Member]
      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Interest Rate Derivative Assets, at Fair Value 0    
Interest Rate Derivative Liabilities, at Fair Value   0  
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value 1,032 6,832  
Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Interest Rate Derivative Assets, at Fair Value 574    
Interest Rate Derivative Liabilities, at Fair Value   755  
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value $ 1,032 $ 6,832