Investments in Equipment and Leases, Net (Property on Operating Leases) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014
Property Subject to or Available for Operating Lease [Line Items]
Balance December 31, 2013	$ 4,231
Additions	345
Reclassifications or Dispositions	(189)
Balance December 31, 2014	3,697
Transportation, Containers [Member]
Property Subject to or Available for Operating Lease [Line Items]
Balance December 31, 2013	15,874
Reclassifications or Dispositions	(4,271)
Balance December 31, 2014	11,603
Transportation, Rail [Member]
Property Subject to or Available for Operating Lease [Line Items]
Balance December 31, 2013	11,353
Additions	110
Reclassifications or Dispositions	2,800
Balance December 31, 2014	14,263
Transportation, Other [Member]
Property Subject to or Available for Operating Lease [Line Items]
Balance December 31, 2013	640
Reclassifications or Dispositions	(290)
Balance December 31, 2014	350
Total Property Subject to or Available For Operating Lease [Member]
Property Subject to or Available for Operating Lease [Line Items]
Balance December 31, 2013	27,867
Additions	110
Reclassifications or Dispositions	(1,761)
Balance December 31, 2014	26,216
Less Accumulated Depreciation [Member]
Property Subject to or Available for Operating Lease [Line Items]
Balance December 31, 2013	(23,636)
Additions	(455)
Reclassifications or Dispositions	1,572
Balance December 31, 2014	$ (22,519)