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Investment in and Advances to Unconsolidated Affiliates - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 04, 2019
Mar. 31, 2019
Mar. 31, 2018
Oct. 31, 2018
Investments in and Advances to Affiliates [Line Items]        
Proceeds from borrowings under long-term debt obligations   $ 1,231.9 $ 100.9  
Midwest Gaming Holdings, LLC        
Investments in and Advances to Affiliates [Line Items]        
Equity method investment, ownership percentage 42.00% 61.30%   100.00%
Aggregated cash consideration paid at closing of the Sale Transaction $ 406.6      
Clairvest Group Inc.        
Investments in and Advances to Affiliates [Line Items]        
Aggregated cash consideration paid at closing of the Sale Transaction 409.8      
Transaction costs 3.2      
Deferred tax liability 109.6      
Midwest Gaming Holdings, LLC        
Investments in and Advances to Affiliates [Line Items]        
Proceeds from borrowings under long-term debt obligations $ 300.0      
High Plaines | Midwest Gaming Holdings, LLC        
Investments in and Advances to Affiliates [Line Items]        
Equity method investment, ownership percentage   36.00%    
Casino Investors | Midwest Gaming Holdings, LLC        
Investments in and Advances to Affiliates [Line Items]        
Equity method investment, ownership percentage   2.70%