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Leases (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
item
Dec. 31, 2012
Operating Leased Assets [Line Items]    
Option terms of lease 5 years  
Minimum sublease rentals $ 6,355  
Number of sale leaseback transactions 6  
Total deemed landlord financing $ 3,386 $ 3,529
Shopping Center Or Building Leases [Member] | Minimum [Member]
    
Operating Leased Assets [Line Items]    
Combined initial and option terms lease 20 years  
Shopping Center Or Building Leases [Member] | Maximum [Member]
    
Operating Leased Assets [Line Items]    
Combined initial and option terms lease 25 years  
Ground Leases [Member] | Minimum [Member]
    
Operating Leased Assets [Line Items]    
Combined initial and option terms lease 30 years  
Ground Leases [Member] | Maximum [Member]
    
Operating Leased Assets [Line Items]    
Combined initial and option terms lease 40 years