Investment in Equipment and Leases, Net (Schedule of Useful Lives of Assets) (Details)	3 Months Ended
	Mar. 31, 2015
Minimum [Member] | Transportation, Rail [Member]
Property Subject To Or Available For Operating Lease [Line Items]
Useful lives of lease assets	35 years
Minimum [Member] | Transportation, Containers [Member]
Property Subject To Or Available For Operating Lease [Line Items]
Useful lives of lease assets	20 years
Minimum [Member] | Aviation [Member]
Property Subject To Or Available For Operating Lease [Line Items]
Useful lives of lease assets	15 years
Maximum [Member] | Transportation, Rail [Member]
Property Subject To Or Available For Operating Lease [Line Items]
Useful lives of lease assets	40 years
Maximum [Member] | Transportation, Containers [Member]
Property Subject To Or Available For Operating Lease [Line Items]
Useful lives of lease assets	30 years
Maximum [Member] | Aviation [Member]
Property Subject To Or Available For Operating Lease [Line Items]
Useful lives of lease assets	20 years