Summary of Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2011 Y
Buildings and Improvements [Member]
Depreciation Expense on the Useful Lives
Property, Plant and Equipment, Useful Life, Minimum	8
Property, Plant and Equipment, Useful Life, Maximum	50
Land Improvements [Member]
Depreciation Expense on the Useful Lives
Property, Plant and Equipment, Useful Life, Minimum	3
Property, Plant and Equipment, Useful Life, Maximum	20
Furniture, Fixtures and Equipment [Member]
Depreciation Expense on the Useful Lives
Property, Plant and Equipment, Useful Life, Minimum	5
Property, Plant and Equipment, Useful Life, Maximum	10