Summary Of Significant Accounting Policies (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Ownership percentage (in hundredths)	80.00%
Percentage of reserve on receivables overdue one to thirty days (in hundredths)	1.00%
Minimum period for general reserve with specific minimum percentage	1 day
Maximum period for general reserve with specific minimum percentage	30 days
Percentage of reserve on receivables overdue one year (in hundredths)	100.00%
Maximum period for general reserve with specific maximum percentage	1 year
Minimum percentage realization for recognition of income tax position (in hundredths)	50.00%
Minimum lease term	1 year
Maximum lease term	8 years
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Depreciable life (in years)	5 years
Residual Value	0
Minimum [Member] | Other Specialized Containers [Member]
Property, Plant and Equipment [Line Items]
Depreciable life (in years)	12 years 6 months
Residual Value	1,000
Minimum [Member] | Railcar Equipment [Member]
Property, Plant and Equipment [Line Items]
Depreciable life (in years)	40 years
Maximum [Member] | Other Specialized Containers [Member]
Property, Plant and Equipment [Line Items]
Depreciable life (in years)	15 years
Residual Value	3,500
Maximum [Member] | Railcar Equipment [Member]
Property, Plant and Equipment [Line Items]
Depreciable life (in years)	43 years