Property and Equipment - Property and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	$ 3,239,135	$ 3,197,067
Accumulated depreciation	(1,256,319)	(1,160,806)
Property and equipment, net	1,982,816	2,036,261
Land and land improvements [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	255,179	254,013
Buildings [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	2,369,851	2,340,555
Furniture, fixtures and equipment [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	603,529	576,453
Construction-in-progress [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	$ 10,576	$ 26,046