Summary of Significant Accounting Policies - Schedule of estimated useful lives of the assets (Details) (USD $) In Millions, unless otherwise specified			12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Buildings [Member] Minimum [Member]	Dec. 31, 2012 Buildings [Member] Maximum [Member]	Dec. 31, 2012 Machinery and Equipment [Member] Minimum [Member]	Dec. 31, 2012 Machinery and Equipment [Member] Maximum [Member]	Dec. 31, 2012 Vehicles [Member] Minimum [Member]	Dec. 31, 2012 Vehicles [Member] Maximum [Member]	Dec. 31, 2012 Leasehold Improvements [Member] Minimum [Member]	Dec. 31, 2012 Leasehold Improvements [Member] Maximum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment useful lives			20 years	30 years	3 years	12 years	1 year	3 years	7 years	10 years
Assets Held-for-sale, Long Lived	$ 5.7	$ 5.7