Description of Business and Summary of Significant Accounting Policies - Reclassifications - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Food and Beverage Revenue [Member]
Prior period reclassification adjustment	$ 25.6	$ 21.4
Other Revenue [Member]
Prior period reclassification adjustment	(25.6)	(21.4)
Rooms Expense [Member]
Prior period reclassification adjustment	4.2	3.7
Other Hotel Expenses [Member]
Prior period reclassification adjustment	$ (4.2)	$ (3.7)