Property and Equipment - Property and Equipment (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	$ 3,144,542	$ 3,129,791
Accumulated depreciation	(1,060,295)	(980,792)
Property and equipment, net	2,084,247	2,148,999
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	242,075	241,292
Building [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	2,299,304	2,297,343
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	576,753	563,622
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, gross	$ 26,410	$ 27,534