Consolidation Of Variable Interest Entities As A Non-Controlling Interest (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($) item	Sep. 30, 2015 USD ($) item	Sep. 30, 2016 USD ($) item	Sep. 30, 2015 USD ($) item	Dec. 31, 2015 USD ($)
Variable Interest Entity [Line Items]
Total net book value	$ 667,000		$ 667,000		$ 674,000
Net book value	1,786,374,000		1,786,374,000		1,748,211,000
Proceeds from containers sold			46,137,000	$ 51,188,000
Collateralized Financing Obligations [Member]
Variable Interest Entity [Line Items]
Long-term debt	91,600,000		91,600,000
Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Net book value	63,939,000		63,939,000		85,101,000
Cash	22,016,000		22,016,000		$ 35,106,000
Variable Interest Entity, Primary Beneficiary [Member] | Loan [Member]
Variable Interest Entity [Line Items]
Long-term debt	$ 5,800,000		$ 5,800,000
Variable Interest Entity, Primary Beneficiary [Member] | Containers [Member]
Variable Interest Entity [Line Items]
Number of types of container fund arrangements | item			2
Number of container portfolios sold | item	0	0	0	0
Total net book value	$ 191,800,000		$ 191,800,000
Net book value	69,600,000		69,600,000
Gain (loss) recognized on initial consolidation of VIEs			0
Proceeds from containers sold	$ 9,200,000	$ 6,800,000	$ 26,100,000	$ 21,600,000