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Investment In and Advances To Unconsolidated Affiliates - Miami Valley Gaming Joint Venture (Details) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2012
Schedule of Equity Method Investments [Line Items]        
Noncurrent liabilities $ 69,300,000 $ 79,700,000    
Proceeds from equity method investment $ 15,600,000 15,200,000 $ 0  
Miami Valley Gaming LLC        
Schedule of Equity Method Investments [Line Items]        
Equity method investment, ownership percentage 50.00%     50.00%
Equity method investment, amount       $ 60,000,000.0
Note payable term       6 years
Noncurrent liabilities       $ 50,000,000
Secured note payable fixed interest rate       5.00%
Principal repayments of secured note payable       $ 25,000,000
Proceeds from equity method investment $ 15,000,000 $ 15,000,000    
Miami Valley Gaming LLC | Funded at Closing        
Schedule of Equity Method Investments [Line Items]        
Equity method investment, amount       10,000,000.0
Miami Valley Gaming LLC | Notes Payable, Other Payables        
Schedule of Equity Method Investments [Line Items]        
Equity method investment, amount       $ 50,000,000.0