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Property And Equipment (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Property, Plant and Equipment [Line Items]      
Depreciation expense $ 10,100 $ 9,000 $ 8,600
Impairment - intangible and tangible assets 16,486    
Corporate And Other [Member] | Century Casino Bath [Member]      
Property, Plant and Equipment [Line Items]      
Impairment - intangible and tangible assets $ 8,000