INDUSTRY SEGMENTS (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2011		Sep. 30, 2011		Jun. 30, 2011		Mar. 31, 2011		Dec. 31, 2010		Sep. 30, 2010		Jun. 30, 2010		Mar. 31, 2010		Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Segment Reporting Information [Line Items]
Number of operating segments																	5
Number of industries																	3
Revenue	$ 460.2		$ 440.2		$ 448.5		$ 373.5		$ 437.6		$ 437.3		$ 396.5		$ 342.1		$ 1,722.0		$ 1,614.0		$ 1,392.0
Operating Profit																	132.3		162.9		60.3
Interest expense, net																	(24.8)	[1]	(25.5)	[1]	(25.9)	[1]
General corporate expenses	(7.1)		(4.8)		(4.2)		(4.2)		(4.5)		(7.7)		(4.5)		(6.6)		(20.3)		(23.3)		(21.8)
Income From Continuing Operations Before Income Taxes	4.5		29.0		39.2		14.5		31.9		41.2		35.2		5.8		87.0		114.0		12.0
Income taxes	0.8		10.6		15.1		5.8		13.1		15.5		13.1		3.0		32.0		45.0		5.0
Income From Continuing Operations	3.7		18.4		24.1		8.7		18.8		25.7		22.1		2.8		55.0		69.0		7.0
Discontinued operations	(2.1)	[2]	(9.7)	[2]	(5.4)	[2]	(3.5)	[2]	1.4		0		6.8		14.5		(21.0)		23.0		37.0
Net income	1.6		8.7		18.7		5.2		20.2		25.7		28.9		17.3		34.0		92.0		44.0
Assets	2,544.0								2,495.0								2,544.0		2,495.0		2,379.0
Capital Expenditures																	106.5		243.1		125.9
Depreciation and Amortization																	109.0		107.0		105.0
Earnings from equity investments included in operating profit																	(2.0)		5.0		(2.0)
Gain from consolidation of HS&TC																	0		0		5.0
Less amounts reported in discontinued operations [Member]
Segment Reporting Information [Line Items]
Revenue	(0.4)	[2]	(8.8)	[2]	(23.1)	[2]	(15.2)	[2]	(44.3)	[2]	(3.3)	[2]	(20.7)	[2]	(58.4)	[2]	(47.5)	[3]	(126.7)	[3]	(136.6)	[3]
Operating Profit																	(23.8)	[4]	(54.5)	[4]	(59.2)	[4]
Reconciling Items [Member]
Segment Reporting Information [Line Items]
Revenue	(4.4)	[5]	(4.3)	[5]	(6.9)	[5]	(6.5)	[5]	(15.8)	[5]	(2.7)	[5]	(3.6)	[5]	(4.2)	[5]	(22.1)	[5]	(26.3)	[5]	(16.3)	[5]
Other [Member]
Segment Reporting Information [Line Items]
Assets	4.8								14.8								4.8		14.8		12.2
Capital Expenditures																	0		0.3		0.3
Depreciation and Amortization																	1.1		1.9		3.1
Transportation Industry [Member]
Segment Reporting Information [Line Items]
Number of operating segments																	2
Equity method investment, ownership percentage (in hundredths)	35.00%																35.00%
Transportation Industry [Member] | Ocean transportation segment [Member]
Segment Reporting Information [Line Items]
Revenue	282.6		281.8		274.8		238.4		268.0		261.8		257.2		229.5		1,077.0		1,016.0		888.6
Operating Profit																	74.1	[4]	118.7	[4]	58.3	[4]
Interest expense, net																	7.7		8.2		9.0
Assets	1,082.6								1,095.5								1,082.6		1,095.5		1,095.2
Capital Expenditures																	44.2		69.4		12.7
Depreciation and Amortization																	70.6		69.0		67.1
Earnings from equity investments included in operating profit																	8.6		12.8		6.2
Start-up losses from China string																			19.3
Equity method investments	56.5								52.9								56.5		52.9		47.2
Transportation Industry [Member] | Logistics services segment [Member]
Segment Reporting Information [Line Items]
Revenue	92.8		99.2		103.1		91.3		97.5		92.4		88.6		77.1		386.4		355.6		320.9
Operating Profit																	5.0		7.2		6.7
Assets	76.8								73.8								76.8		73.8		72.4
Capital Expenditures																	3.0		1.8		0.6
Depreciation and Amortization																	3.2		3.2		3.5
Real Estate Industry [Member]
Segment Reporting Information [Line Items]
Number of operating segments																	2
Earnings from equity investments included in operating profit																	7.9		3.1
Real Estate Industry [Member] | Leasing segment [Member]
Segment Reporting Information [Line Items]
Revenue	24.4		24.5		25.2		26.0		23.2		24.4		23.2		23.6		100.1		94.4		103.2
Operating Profit																	39.3		35.3		43.2
Assets	770.9								739.4								770.9		739.4		627.4
Capital Expenditures																	43.6	[6]	164.7	[6]	108.8	[6]
Depreciation and Amortization																	21.6	[7]	20.3	[7]	19.5	[7]
Real Estate Industry [Member] | Sales segment [Member]
Segment Reporting Information [Line Items]
Revenue	2.8		9.3		30.7		23.4		49.5		4.3		22.0		60.3		66.2		136.1		125.6
Operating Profit																	15.5	[4]	50.1	[4]	39.1	[4]
Assets	451.4	[8]							420.8	[8]							451.4	[8]	420.8	[8]	415.6	[8]
Capital Expenditures																	5.2	[7]	0.1	[7]	0.1	[7]
Depreciation and Amortization																	0.2		0.2		0.3
Equity method investments	290.1								274.8								290.1		274.8		193.3
Expenditures for real estate inventory																	14		22		6
Agribusiness Industry [Member]
Segment Reporting Information [Line Items]
Number of operating segments																	1
Revenue	62.4		38.5		44.7		16.1		59.5	[9]	60.4	[9]	29.8	[9]	14.2	[9]	161.7	[10]	163.9	[10]	107.0	[10]
Operating Profit																	22.2	[10]	6.1	[10]	(27.8)	[10]
Assets	157.8								150.3								157.8		150.3		156.8
Capital Expenditures																	10.5		6.8		3.4
Depreciation and Amortization																	11.9		12.7		11.9
Gain from crop disaster relief payment									4.9										4.9
Gain from consolidation of HS&TC																					$ 5.4

[1] Includes Ocean Transportation interest expense of $7.7 million for 2011, $8.2 million for 2010, and $9.0 million for 2009. Substantially all other interest expense was at the parent company.

[2] See Note 2 for discussion of discontinued operations.

[3] Prior year amounts restated for amounts treated as discontinued operations.

[4] The Ocean Transportation segment includes approximately $8.6 million, $12.8 million, and $6.2 million of equity in earnings from its investment in SSAT for 2011, 2010, and 2009, respectively. The Real Estate Sales segment includes approximately $8 million equity in loss and $2.0 million in equity from its various real estate joint ventures for 2011 and 2010, respectively. Equity in earnings from joint ventures in 2009 was negligible.

[5] Includes inter-segment revenue, interest income, and other income classified as revenue for segment reporting purposes.

[6] Represents gross capital additions to the leasing portfolio, including gross tax-deferred property purchases that are reflected as non-cash transactions in the Consolidated Statements of Cash Flows.

[7] Excludes expenditures for real estate developments held for sale which are classified as Cash Flows from Operating Activities within the Consolidated Statements of Cash Flows. Operating cash flows for expenditures related to real estate developments were $18 million, $22 million, and $6 million for 2011, 2010, and 2009, respectively.

[8] The Ocean Transportation segment includes approximately $56.5 million, $52.9 million, and $47.2 million related to its investment in SSAT as of December 31, 2011, 2010, and 2009, respectively. The Real Estate Sales segment includes approximately $290.1 million, $274.8 million, and $193.3 million related to its investment in various real estate joint ventures as of December 31, 2011, 2010, and 2009, respectively.

[9] Includes a $4.9 million gain in the fourth quarter of 2010 related to a crop disaster relief payment for drought experienced in prior years.

[10] Includes a $4.9 million gain in 2010 related to a crop disaster relief payment for drought experienced in prior years and a $5.4 million gain recorded upon consolidation of HS&TC in 2009.