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Property and Equipment, net - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
1 Months Ended 3 Months Ended 1 Months Ended 3 Months Ended
Sep. 30, 2013
Atlantic City [Member]
Jun. 30, 2013
Mississippi [Member]
Sep. 30, 2013
Harrahs Tunica [Member]
Jun. 30, 2013
New Jersey Casino Reinvestment Development Authority (CRDA) [Member]
Sep. 30, 2013
New Jersey Casino Reinvestment Development Authority (CRDA) [Member]
Sep. 30, 2013
Land [Member]
New Jersey Casino Reinvestment Development Authority (CRDA) [Member]
Property, Plant and Equipment [Line Items]            
Tangible asset impairment charges $ 477.1 $ 79.3 $ 112.3 $ 22.4    
Asset held for sale           7.3
Impairment of land held for sale         $ 21.7