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Related Party Transactions - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Dec. 31, 2017
Oct. 05, 2017
Dec. 31, 2018
Dec. 31, 2016
Dec. 31, 2015
Related Party Transaction [Line Items]          
Dividends $ 0   $ 116,503,000    
Caesars Entertainment Outdoor          
Related Party Transaction [Line Items]          
Dividends   $ 1,000,000   $ 1,232,000 $ 1,981,000
Caesars Entertainment Operating Company, Inc.          
Related Party Transaction [Line Items]          
Maximum annual contributions per employee, percent (up to)     50.00%    
Employer matching contribution, amount (up to)     $ 600    
Administrative expense   27,000   34,000 39,000
Accumulated Net Investment Gain (Loss) Attributable to Parent | Caesars Entertainment Outdoor          
Related Party Transaction [Line Items]          
Dividends   $ 1,000,000   $ 1,232,000 $ 1,981,000