Basis of Presentation and Summary of Significant Accounting Policies Basis of Presentation and Summary of Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified			3 Months Ended				12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013 Building and Building Improvements Minimum	Mar. 31, 2013 Building and Building Improvements Maximum	Mar. 31, 2013 Machinery and Equipment Minimum	Mar. 31, 2013 Machinery and Equipment Maximum	Mar. 31, 2012 Transportation Europe and R.O.W Segment
Property, Plant and Equipment [Line Items]
Pre-tax out of period adjustment							$ 4.6
Allowance for doubtful accounts	$ 20.1	$ 20.3
Property plant and equipment useful Life			25 years	40 years	3 years	14 years