Consolidated Statements of Comprehensive Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Revenues
Lease revenue	$ 246.7	$ 231.5	$ 722.9	$ 682.6
Marine operating revenue	89.0	85.5	190.8	186.1
Other Revenue, Net	17.5	14.9	50.7	42.8
Total Revenues	353.2	331.9	964.4	911.5
Expenses
Maintenance expense	76.9	68.8	217.9	197.5
Marine operating expense	58.2	56.5	132.5	125.2
Depreciation expense	65.6	60.7	186.6	175.9
Operating lease expense	31.5	32.7	97.4	96.6
Other operating expense	6.9	6.6	19.2	16.6
Selling, general and administrative expense	42.0	38.6	129.8	115.6
Total Expenses	281.1	263.9	783.4	727.4
Other Income (Expense)
Net gain on asset dispositions	23.5	11.3	59.8	57.6
Interest expense, net	(41.1)	(42.9)	(125.2)	(127.1)
Other expense	(4.4)	(3.9)	(8.6)	(4.0)
Income before Income Taxes and Share of Affiliates’ Earnings	50.1	32.5	107.0	110.6
Income Taxes	(31.3)	1.7	(47.9)	(22.3)
Share of Affiliates’ Earnings, Net of Tax	35.0	19.6	56.9	19.3
Net Income	53.8	53.8	116.0	107.6
Other Comprehensive Income, net of taxes
Foreign currency translation adjustments	32.9	10.8	13.4	8.7
Unrealized gain on securities	0.7	0	0.9	0.1
Unrealized gain on derivative instruments	15.4	0.2	21.3	13.6
Post-retirement benefit plans	2.1	1.4	6.4	4.1
Other Comprehensive Income	51.1	12.4	42.0	26.5
Comprehensive Income	$ 104.9	$ 66.2	$ 158.0	$ 134.1
Share Data
Basic earnings per share (in dollars per share)	$ 1.16	$ 1.15	$ 2.49	$ 2.30
Average number of common shares (in shares)	46.2	46.9	46.5	46.8
Diluted earnings per share (in dollars per share)	$ 1.15	$ 1.13	$ 2.45	$ 2.26
Average number of common shares and equivalents (in shares)	46.8	47.6	47.2	47.5
Dividends declared per common share (in dollars per share)	$ 0.31	$ 0.30	$ 0.93	$ 0.90