Segment And Geographic Information (Schedule Of Segment Information) (Details) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Container lease income										$ 235,365	$ 202,328	$ 220,732
Rail lease income										32,476	30,490	17,433
Logistics revenue										80,552	61,536	11,502
Total revenue		$ 94,034	$ 90,161	$ 82,692	$ 81,506	$ 77,274	$ 78,472	$ 71,642	$ 66,966	348,393	294,354	249,667
Depreciation of rental equipment										110,952	104,877	113,590
Storage, handling and other expenses										20,918	35,862	30,194
Logistics transportation costs										68,155	51,980	10,172
Loss (gain) on sale of used rental equipment										(5,347)	12,671	654
Administrative expenses										42,699	35,678	27,617
Total operating expenses		57,631	58,267	57,924	63,555	64,664	71,110	56,784	48,510	237,377	241,068	182,227
Operating income		36,403	$ 31,894	$ 24,768	$ 17,951	12,610	$ 7,362	$ 14,858	$ 18,456	111,016	53,286	67,440
Net interest expense										53,052	42,754	36,271
Other expense										765	654	182
Total other expenses										53,817	43,408	36,453
Income before income taxes and non-controlling interest										57,199	9,878	30,987
Goodwill		15,794				15,794				15,794	15,794
Total assets	[1]	2,430,402				2,055,934				2,430,402	2,055,934
Purchase of rental equipment	[2]									502,050	251,165	389,331
Inter-Segment [Member]
Segment Reporting Information [Line Items]
Total revenue										0
Operating Segments [Member] | Container Leasing [Member]
Segment Reporting Information [Line Items]
Container lease income										235,365	202,328	220,732
Total revenue										235,365	202,328	220,732
Depreciation of rental equipment										99,753	95,755	108,996
Storage, handling and other expenses										15,207	32,465	27,653
Loss (gain) on sale of used rental equipment										(5,333)	12,750	2,276
Administrative expenses										22,925	20,453	21,969
Total operating expenses										132,552	161,423	160,894
Operating income										102,813	40,905	59,838
Net interest expense										41,815	35,784	33,156
Other expense										765	654	182
Total other expenses										42,580	36,438	33,338
Income before income taxes and non-controlling interest										60,233	4,467	26,500
Total assets		1,940,997				1,638,263				1,940,997	1,638,263
Purchase of rental equipment	[2]									445,168	118,374	226,469
Operating Segments [Member] | Rail Leasing [Member]
Segment Reporting Information [Line Items]
Rail lease income										32,476	30,490	17,433
Total revenue										32,476	30,490	17,433
Depreciation of rental equipment										11,199	9,122	4,594
Storage, handling and other expenses										5,615	3,386	2,540
Loss (gain) on sale of used rental equipment										(14)	33	(1,622)
Administrative expenses										4,756	3,759	3,131
Total operating expenses										21,556	16,300	8,643
Operating income										10,920	14,190	8,790
Net interest expense										11,237	6,970	3,109
Total other expenses										11,237	6,970	3,109
Income before income taxes and non-controlling interest										(317)	7,220	5,681
Total assets		449,376				378,059				449,376	378,059
Purchase of rental equipment	[2]									56,882	132,791	162,862
Operating Segments [Member] | Logistics [Member]
Segment Reporting Information [Line Items]
Container lease income
Rail lease income
Logistics revenue										80,552	61,536	11,502
Total revenue										80,552	61,536	11,502
Depreciation of rental equipment
Storage, handling and other expenses										96	11	1
Logistics transportation costs										68,155	51,980	10,172
Loss (gain) on sale of used rental equipment											(112)
Administrative expenses										15,018	11,466	2,517
Total operating expenses										83,269	63,345	12,690
Operating income										(2,717)	(1,809)	(1,188)
Net interest expense												6
Other expense
Total other expenses												6
Income before income taxes and non-controlling interest										(2,717)	(1,809)	(1,194)
Goodwill		15,794				15,794				15,794	15,794
Total assets		$ 40,029				$ 39,612				$ 40,029	39,612
Purchase of rental equipment	[2]

[1] Total assets at December 31, 2017 and December 31, 2016 include the following assets of certain variable interest entities (VIEs) that can only be used to settle the liabilities of those VIEs: Cash, $20,685 and $30,449; Net investment in direct finance leases, $4,423 and $7,331; and Rental equipment net of accumulated depreciation, $61,842 and $62,477, respectively.

[2] Represents cash disbursements for purchasing of rental equipment as reflected in the consolidated statements of cash flows for the periods indicated