Consolidated Statements of Comprehensive Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Revenues
Lease revenue	$ 239.0	$ 225.6	$ 476.2	$ 451.1
Marine operating revenue	83.3	83.1	101.8	100.6
Other Revenue, Net	16.6	14.4	33.2	27.9
Total Revenues	338.9	323.1	611.2	579.6
Expenses
Maintenance expense	74.3	67.8	141.0	128.7
Marine operating expense	57.7	55.2	74.3	68.7
Depreciation expense	63.1	59.5	121.0	115.2
Operating lease expense	33.6	32.5	65.9	63.9
Other operating expense	7.0	6.3	12.3	10.0
Selling, general and administrative expense	45.8	38.9	87.8	77.0
Total Expenses	281.5	260.2	502.3	463.5
Other Income (Expense)
Net gain on asset dispositions	19.6	18.3	36.3	46.3
Interest expense, net	(43.2)	(41.6)	(84.1)	(84.2)
Other (expense) income	(3.1)	0.5	(4.2)	(0.1)
Income before Income Taxes and Share of Affiliates’ Earnings	30.7	40.1	56.9	78.1
Income Taxes	(9.1)	(13.2)	(16.6)	(24.0)
Share of Affiliates’ Earnings, Net of Tax	13.5	(3.4)	21.9	(0.3)
Net Income	35.1	23.5	62.2	53.8
Other Comprehensive Income, net of taxes
Foreign currency translation adjustments	(2.5)	(27.4)	(19.5)	(2.1)
Unrealized gain on securities	0.1	(0.4)	0.2	0.1
Unrealized gain on derivative instruments	4.4	11.2	5.9	13.4
Post-retirement benefit plans	2.3	1.3	4.3	2.7
Other Comprehensive Income (Loss)	4.3	(15.3)	(9.1)	14.1
Comprehensive Income	$ 39.4	$ 8.2	$ 53.1	$ 67.9
Share Data
Basic earnings per share (in dollars per share)	$ 0.75	$ 0.50	$ 1.33	$ 1.15
Average number of common shares (in shares)	46.5	46.8	46.7	46.8
Diluted earnings per share (in dollars per share)	$ 0.74	$ 0.49	$ 1.31	$ 1.13
Average number of common shares and equivalents (in shares)	47.1	47.5	47.4	47.5
Dividends declared per common share (in dollars per share)	$ 0.31	$ 0.30	$ 0.62	$ 0.60