Property, Plant and Equipment (Details Textual) (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended		12 Months Ended
	Dec. 31, 2013	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Property, Plant and Equipment [Abstract]
Depreciation expense on property, plant and equipment		$ 9.9	$ 9.3	$ 37.5
Asset Impairment Charges	4.4
Depreciation expense on railcar assets leased to others		$ 3.4	$ 3.7	$ 14.7