Summary Of Significant Accounting Policies (Current And Prior Residual Values And Depreciable Lives For Each Type Of Equipment) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013
Current [Member] | 20-ft. Standard Dry Van Container [Member]
Property, Plant and Equipment [Line Items]
Residual Value	$ 1,050
Depreciable life (in years)	13 years
Current [Member] | 40-ft. Standard Dry Van Container [Member]
Property, Plant and Equipment [Line Items]
Residual Value	1,300
Depreciable life (in years)	13 years
Current [Member] | 40-ft. High Cube Dry Van Container [Member]
Property, Plant and Equipment [Line Items]
Residual Value	1,650
Depreciable life (in years)	13 years
Current [Member] | 20-ft. Refrigerated Container [Member]
Property, Plant and Equipment [Line Items]
Residual Value	2,750
Depreciable life (in years)	12 years
Current [Member] | 40-ft. High Cube Refrigerated Container [Member]
Property, Plant and Equipment [Line Items]
Residual Value	3,500
Depreciable life (in years)	12 years
Prior [Member] | 20-ft. Standard Dry Van Container [Member]
Property, Plant and Equipment [Line Items]
Residual Value	950
Depreciable life (in years)	12 years 6 months
Prior [Member] | 40-ft. Standard Dry Van Container [Member]
Property, Plant and Equipment [Line Items]
Residual Value	1,150
Depreciable life (in years)	12 years 6 months
Prior [Member] | 40-ft. High Cube Dry Van Container [Member]
Property, Plant and Equipment [Line Items]
Residual Value	1,300
Depreciable life (in years)	12 years 6 months
Prior [Member] | 20-ft. Refrigerated Container [Member]
Property, Plant and Equipment [Line Items]
Residual Value	2,250
Depreciable life (in years)	12 years
Prior [Member] | 40-ft. High Cube Refrigerated Container [Member]
Property, Plant and Equipment [Line Items]
Residual Value	$ 3,000
Depreciable life (in years)	12 years