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Investment In and Advances To Unconsolidated Affiliates - SHRI Equity Investment (Details)
ft² in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2015
USD ($)
ft²
hotel_room
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Oct. 02, 2015
USD ($)
terminal
mi
Investments in and Advances to Affiliates [Line Items]        
Dividend from investment in unconsolidated affiliates $ 15,250 $ 0 $ 0  
Saratoga        
Investments in and Advances to Affiliates [Line Items]        
Equity method investment, ownership percentage 25.00%     25.00%
Equity method investments       $ 24,500
Number of lottery terminals | terminal       1,700
Race track, length | mi       0.5
Future payment for investment in equity method investee $ 6,400      
Property, Plant, and Equipment, Fair Value Disclosure       $ 3,700
Finite-lived Intangible Assets, Fair Value Disclosure       $ 2,700
Dividend from investment in unconsolidated affiliates 300      
Saratoga        
Investments in and Advances to Affiliates [Line Items]        
Future expansion costs $ 40,000      
Future number of hotel rooms | hotel_room 117      
Future square footage of multi-functional event space | ft² 3      
Saratoga | DNC        
Investments in and Advances to Affiliates [Line Items]        
Equity method investment, ownership percentage       50.00%