Description of the Business and Summary of Significant Accounting Policies (Details 1)	12 Months Ended
	Dec. 31, 2011 Y
Building [Member]
Estimated Useful lives of property and equipment
Estimated useful lives of property and equipment, maximum	40
Land Improvements [Member]
Estimated Useful lives of property and equipment
Estimated useful lives of property and equipment, maximum	20
Furniture and Fixtures [Member]
Estimated Useful lives of property and equipment
Estimated useful lives of property and equipment, minimum	3
Estimated useful lives of property and equipment, maximum	8
Leasehold Improvements [Member]
Estimated Useful lives of property and equipment
Estimated Useful lives of Property and equipment	The shorter of the lease term or useful life