Investment in Equipment and Leases, Net (Schedule of Useful Lives of Lease Assets) (Details)	6 Months Ended
	Jun. 30, 2023
Railroad [Member] | Minimum [Member]
Lessor, Lease, Description [Line Items]
Useful lives of lease assets	35 years
Railroad [Member] | Maximum [Member]
Lessor, Lease, Description [Line Items]
Useful lives of lease assets	50 years
Aviation [Member] | Minimum [Member]
Lessor, Lease, Description [Line Items]
Useful lives of lease assets	15 years
Aviation [Member] | Maximum [Member]
Lessor, Lease, Description [Line Items]
Useful lives of lease assets	20 years
Mining [Member] | Minimum [Member]
Lessor, Lease, Description [Line Items]
Useful lives of lease assets	10 years
Mining [Member] | Maximum [Member]
Lessor, Lease, Description [Line Items]
Useful lives of lease assets	15 years
Paper Processing [Member] | Minimum [Member]
Lessor, Lease, Description [Line Items]
Useful lives of lease assets	10 years
Paper Processing [Member] | Maximum [Member]
Lessor, Lease, Description [Line Items]
Useful lives of lease assets	15 years
Construction [Member] | Minimum [Member]
Lessor, Lease, Description [Line Items]
Useful lives of lease assets	7 years
Construction [Member] | Maximum [Member]
Lessor, Lease, Description [Line Items]
Useful lives of lease assets	10 years
Materials Handling [Member] | Minimum [Member]
Lessor, Lease, Description [Line Items]
Useful lives of lease assets	7 years
Materials Handling [Member] | Maximum [Member]
Lessor, Lease, Description [Line Items]
Useful lives of lease assets	10 years
Transportation, other [Member] | Minimum [Member]
Lessor, Lease, Description [Line Items]
Useful lives of lease assets	7 years
Transportation, other [Member] | Maximum [Member]
Lessor, Lease, Description [Line Items]
Useful lives of lease assets	10 years