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Goodwill And Intangible Assets (Narrative) (Details) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]      
Intangible assets amortization $ 1,700,000 $ 2,000,000 $ 2,200,000
Goodwill impairment $ 0 $ 0 $ 0
Trade Name [Member]      
Finite-Lived Intangible Assets [Line Items]      
Intangible assets estimated useful life 45 years    
Other Intangible Assets [Member]      
Finite-Lived Intangible Assets [Line Items]      
Intangible assets estimated useful life 10 years    
Maximum [Member] | Beneficial Leases [Member]      
Finite-Lived Intangible Assets [Line Items]      
Intangible assets estimated useful life 24 years