Consolidated Statements of Comprehensive Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues
Lease revenue	$ 1,154.6	$ 1,140.5	$ 1,087.5
MarineOperatingRevenue	18.9	19.1	15.6
Other revenue	99.5	97.8	106.1
Total Revenues	1,273.0	1,257.4	1,209.2
Expenses
Maintenance Expense	292.7	297.1	315.5
Marine operating expense	14.1	17.5	19.7
Depreciation	357.5	364.4	330.5
Operating Lease, Expense	36.1	39.2	49.3
Other operating expense	37.4	44.0	35.3
Selling, general and administrative	195.0	198.3	172.0
Total Expenses	932.8	960.5	922.3
Other Income (Expense)
Net gain on asset dispositions	77.9	105.9	41.7
Interest expense, net	(214.0)	(204.0)	(190.3)
Other (expense) income	(27.0)	(3.7)	(13.0)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	177.1	195.1	125.3
Income Taxes	(54.8)	(53.2)	(37.3)
Share of Affiliates’ Earnings (net of tax)	33.6	1.2	62.2
Income from continuing operations	155.9	143.1	150.2
Total Discontinued Operations, Net of Taxes	0.0	0.0	1.1
Net Income	155.9	143.1	151.3
Other Comprehensive Income, net of taxes
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	(56.7)	(51.7)	24.4
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	1.4	1.9	(4.5)
Post-retirement benefit plans	4.3	26.7	6.2
Other comprehensive income (loss)	(51.0)	(23.1)	26.1
Comprehensive Income	$ 104.9	$ 120.0	$ 177.4
Income (Loss) from Continuing Operations, Per Basic Share	$ 4.41	$ 4.04	$ 4.30
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax, Per Basic Share	0	0	0.03
Share Data
Basic earnings per share (in dollars per share)	$ 4.41	$ 4.04	$ 4.33
Average number of common shares (in shares)	35.4	35.4	35.0
Income (Loss) from Continuing Operations, Per Diluted Share	$ 4.35	$ 3.98	$ 4.24
Diluted earnings per share (in dollars per share)	4.35	3.98	4.27
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax, Per Diluted Share	$ 0	$ 0	$ 0.03
Average number of common shares and common share equivalents (in shares)	35.9	36.0	35.4