Insurance Receivable And Impairment (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Days covered of lost lease rental income	180 days
Percentage of containers on lease	92.00%
Recover and repair deductible	$ 500
Lost lease rental income deductible	2,000
Net book value	2,004,961	$ 1,807,010
Insurance receivable	1,900
Dry Containers [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net book value		3,200
Insurance receivable	7,600	3,800
Proceeds from insurance receivable	9,500
Estimated proceeds	2,200	1,200
Repair costs	1,500
Recovery costs	$ 3,900	$ 2,600