Investments in Equipment and Leases, Net (Property on Operating Leases) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015
Property Subject to or Available for Operating Lease [Line Items]
Balance December 31, 2014	$ 3,697
Additions	(89)
Reclassifications or Dispositions	(190)
Balance March 31, 2015	3,418
Transportation, Containers [Member]
Property Subject to or Available for Operating Lease [Line Items]
Balance December 31, 2014	11,603
Reclassifications or Dispositions	(1,169)
Balance March 31, 2015	10,434
Transportation, Rail [Member]
Property Subject to or Available for Operating Lease [Line Items]
Balance December 31, 2014	14,263
Reclassifications or Dispositions	(289)
Balance March 31, 2015	13,974
Transportation, Other [Member]
Property Subject to or Available for Operating Lease [Line Items]
Balance December 31, 2014	350
Reclassifications or Dispositions	(350)
Total Property Subject to or Available For Operating Lease [Member]
Property Subject to or Available for Operating Lease [Line Items]
Balance December 31, 2014	26,216
Reclassifications or Dispositions	(1,808)
Balance March 31, 2015	24,408
Less Accumulated Depreciation [Member]
Property Subject to or Available for Operating Lease [Line Items]
Balance December 31, 2014	(22,519)
Additions	(89)
Reclassifications or Dispositions	1,618
Balance March 31, 2015	$ (20,990)