Insurance Receivable And Impairment (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015		Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net book value		$ 1,807,010	$ 1,748,211	[1]
Depreciation expense	[2]	104,877	113,590		$ 77,976	[3]
Bad debt expense		$ 3,151	$ 448	[2]	$ 248	[2]
Customer One, Filed For Court Protection [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Days covered of lost lease rental income		180 days
Lost lease rental income deductible		$ 2,000
Dry Containers [Member] | Customer One, Filed For Court Protection [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net book value		3,200
Insurance receivable		3,800
Estimated proceeds		1,200
Recovery costs		2,600
Bad debt expense		$ 2,500

[1] Amounts for the year ended December 31, 2015 have been restated for immaterial corrections of identified errors relating to prepaid loan fees (see Note 2 (b) "Correction of Immaterial Errors").

[2] Amounts for the years ended December 31, 2015 and 2014 have been restated for immaterial corrections of identified errors relating to prepaid loan fees (see Note 2 (b) "Correction of Immaterial Errors").

[3] At the inception of the lease, the Company records the total minimum lease payments, executory costs, if any, and unguaranteed residual value as gross finance lease receivables. The gross finance lease receivables are reduced as customer payments are received. There was $2.1 million and no unguaranteed residual value, respectively, at December 31, 2016 and 2015, included in gross finance lease receivables. There were no executory costs included in gross finance lease receivables as of December 31, 2016 and 2015.