Property and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Land and improvements	$ 234,862	$ 207,405
Buildings and improvements	3,509,825	3,443,791
Equipment and software	379,811	360,168
Office furniture and fixtures	35,651	35,018
Construction in progress	29,831	30,401
Property and equipment, gross	4,189,980	4,076,783
Less: Accumulated depreciation	(1,352,323)	(1,193,723)
Property, and Equipment, total	$ 2,837,657	$ 2,883,060