Summary of Significant Accounting Policies - Useful Lives of Depreciable Assets (Detail)	12 Months Ended
	Dec. 31, 2013
Minimum | Buildings and Improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	7 years
Minimum | Land Improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Minimum | Furniture, Fixtures and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	4 years
Maximum | Buildings and Improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	50 years
Maximum | Land Improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	20 years
Maximum | Furniture, Fixtures and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	10 years