Related Party Transactions - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Related Party Transaction [Line Items]
Corporate expense	$ 73,900,000	$ 37,000,000	$ 192,500,000	$ 114,300,000
Equity Method Investment, Ownership Percentage	60.70%		60.70%
Caesars Interactive Entertainment [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Annual Fee			2,000,000
Related Party Transaction, Per Event Fee			75,000
Sponsor fees [Member]
Related Party Transaction [Line Items]
Corporate expense		7,500,000		22,500,000
XOJet, Inc. [Member] | Related Party Transaction [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party			2,800,000
Sungard [Member] | Related Party Transaction [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party			1,100,000
Sabre,Inc. [Member] | Related Party Transaction [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party			300,000
Avaya, Inc. [Member] | Related Party Transaction [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party			1,000,000
Norwegian Cruise Line Holdings Ltd. [Member] | Related Party Transaction [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party			$ 900,000