Significant Accounting Policies (Details 1)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Minimum [Member] | Railcars [Member]
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	27 years	30 years
Minimum [Member] | Locomotives [Member]
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	10 years
Minimum [Member] | Buildings [Member]
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	40 years
Minimum [Member] | Leasehold Improvements [Member]
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	5 years
Minimum [Member] | Marine vessels [Member]
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	30 years
Minimum [Member] | Industrial Equipment [Member]
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	5 years
Maximum [Member] | Railcars [Member]
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	42 years	38 years
Maximum [Member] | Locomotives [Member]
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	20 years
Maximum [Member] | Buildings [Member]
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	50 years
Maximum [Member] | Leasehold Improvements [Member]
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	15 years
Maximum [Member] | Marine vessels [Member]
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	65 years
Maximum [Member] | Industrial Equipment [Member]
Estimated lives of useful depreciable assets
Estimated useful lives of depreciable assets, minimum	30 years