Accounting Policies And Recent Accounting Pronouncements (Schedule of Sales Proceeds) (Details) - USD ($)	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Sales proceeds	$ 46,137,000	$ 51,188,000
3-year Avg. [Member] | 20-ft. Standard Dry Van Container [Member]
Sales proceeds	989
3-year Avg. [Member] | 40-ft. Standard Dry Van Container [Member]
Sales proceeds	1,229
3-year Avg. [Member] | 40-ft. High Cube Dry Van Container [Member]
Sales proceeds	1,262
5-year Avg. [Member] | 20-ft. Standard Dry Van Container [Member]
Sales proceeds	1,112
5-year Avg. [Member] | 40-ft. Standard Dry Van Container [Member]
Sales proceeds	1,399
5-year Avg. [Member] | 40-ft. High Cube Dry Van Container [Member]
Sales proceeds	1,440
7-year Avg. [Member] | 20-ft. Standard Dry Van Container [Member]
Sales proceeds	1,158
7-year Avg. [Member] | 40-ft. Standard Dry Van Container [Member]
Sales proceeds	1,458
7-year Avg. [Member] | 40-ft. High Cube Dry Van Container [Member]
Sales proceeds	1,532
11-year Avg. [Member] | 20-ft. Standard Dry Van Container [Member]
Sales proceeds	1,133
11-year Avg. [Member] | 40-ft. Standard Dry Van Container [Member]
Sales proceeds	1,394
11-year Avg. [Member] | 40-ft. High Cube Dry Van Container [Member]
Sales proceeds	$ 1,529