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Deferred Charges, Net (Schedule Of Deferred Charges Net Of Accumulated Amortization) (Details) (USD $)
Dec. 31, 2012
Dec. 31, 2011
Deferred Charges, Net [Line Items]    
Lease origination costs $ 15,158,000 [1] $ 14,217,000 [1]
Financing costs 5,686,000 6,224,000
Other 1,650,000 931,000
Deferred charges, net 22,494,000 21,372,000
Accumulated amortization of intangible lease assets 18,500,000  
Intangible Lease Assets [Member]
    
Deferred Charges, Net [Line Items]    
Deferred charges, net 6,300,000 6,600,000
Cost of intangible lease assets 17,800,000 16,700,000
Accumulated amortization of intangible lease assets $ 11,500,000 $ 10,100,000
[1] Lease origination costs include the unamortized balance of intangible lease assets resulting from purchase accounting allocations of $6.3 million (cost of $17.8 million and accumulated amortization of $11.5 million) and $6.6 million (cost of $16.7 million and accumulated amortization of $10.1 million), respectively.