Summary of Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2012
Minimum [Member]
Property, Plant and Equipment [Line Items]
Intangible Assets, Amortization Method	1
Maximum [Member]
Property, Plant and Equipment [Line Items]
Intangible Assets, Amortization Method	10
Land improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful lives	5
Land improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful lives	20
Buildings [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful lives	5
Buildings [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful lives	20
Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful lives	3
Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful lives	10
Leasehold improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful lives	5
Leasehold improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful lives	10