Consolidated Statements of Cash Flows	12 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Net income (loss)	$ 181,800,000	$ (226,200,000)	$ 136,100,000
Gain on sale of discontinued operations, net of provision for income taxes of $51.9, $—, and $—	(131,400,000)	0	0
Income from discontinued operations, net of income taxes	(11,100,000)	(24,300,000)	(13,700,000)
Depreciation and amortization	265,700,000	258,500,000	276,500,000
Stock-based compensation expense	20,700,000	25,400,000	27,800,000
Provision for deferred income taxes	13,100,000	238,500,000	52,600,000
Net gains on lease portfolio sales	(54,100,000)	(17,300,000)	(50,500,000)
Gains on dispositions of property and other assets	(20,000,000.0)	(5,300,000)	(3,900,000)
Gains on insurance recoveries from property damage	(7,800,000)	0	0
Pension plan settlement	0	(151,500,000)	0
Impairment of long-lived assets	0	396,400,000	0
Non-cash impact of restructuring activities	0	5,300,000	10,900,000
Non-cash interest expense	13,700,000	13,700,000	16,700,000
Loss on extinguishment of debt	11,700,000	5,000,000	0
Other	(3,100,000)	100,000	(4,300,000)
(Increase) decrease in receivables	(64,300,000)	61,600,000	11,700,000
(Increase) decrease in income tax receivable	440,400,000	(441,500,000)	25,700,000
(Increase) decrease in inventories	(147,700,000)	106,400,000	87,400,000
(Increase) decrease in other assets	11,400,000	146,100,000	(114,500,000)
Increase (decrease) in accounts payable	59,200,000	(50,400,000)	(10,400,000)
Increase (decrease) in accrued liabilities	36,500,000	(30,400,000)	(78,600,000)
Increase (decrease) in other liabilities	900,000	8,900,000	(4,100,000)
Net cash provided by operating activities – continuing operations	615,600,000	622,000,000.0	365,400,000
Net cash provided by (used in) operating activities – discontinued operations	(3,800,000)	29,700,000	28,200,000
Net cash provided by operating activities	611,800,000	651,700,000	393,600,000
Proceeds from dispositions of property and other assets	40,500,000	32,700,000	20,000,000.0
Proceeds from lease portfolio sales	454,300,000	138,700,000	205,700,000
Capital expenditures – leasing, net of sold lease fleet railcars owned one year or less with a net cost of $54.0 and $319.3 for the years ended December 31, 2020 and 2019, respectively	(547,200,000)	(602,200,000)	(1,122,200,000)
Capital expenditures – manufacturing and other	(23,600,000)	(95,900,000)	(88,000,000.0)
Acquisitions, net of cash acquired	(16,600,000)	0	0
Proceeds from insurance recoveries	9,500,000	0	0
Payments for (Proceeds from) Other Investing Activities	100,000	0	0
Net cash used in investing activities – continuing operations	(83,000,000.0)	(526,700,000)	(984,500,000)
Net cash provided by (used in) investing activities	276,300,000	(532,900,000)	(993,300,000)
Payments to retire debt	(2,315,800,000)	(1,442,900,000)	(1,724,100,000)
Proceeds from issuance of debt	2,444,100,000	1,561,400,000	2,567,800,000
Shares repurchased	(833,400,000)	(191,300,000)	(224,700,000)
Dividends paid to common shareholders	(88,500,000)	(91,700,000)	(82,100,000)
Purchase of shares to satisfy employee tax on vested stock	(9,300,000)	(9,500,000)	(8,200,000)
Contributions from (distributions to) noncontrolling interest	11,200,000	(6,100,000)	2,200,000
Proceeds from (Payments for) Other Financing Activities	0	(100,000)	0
Net cash provided by (used in) financing activities	(814,100,000)	(168,000,000.0)	526,500,000
Net increase (decrease) in cash, cash equivalents, and restricted cash	74,000,000.0	(49,200,000)	(73,200,000)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	302,400,000	228,400,000	277,600,000
Interest paid	178,400,000	205,500,000	208,100,000
Income tax refunds, net of payments	435,700,000	62,500,000	16,700,000
Proceeds from Sale of Discontinued Operations, Net of Cash Divested
Net cash used in investing activities – discontinued operations	364,700,000	0	0
Other Investing Activities
Net cash used in investing activities – discontinued operations	$ (5,400,000)	$ (6,200,000)	$ (8,800,000)