Consolidated Statements of Cash Flows - USD ($)	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Operating Activities
Net income	$ 107,500,000	$ 82,100,000
Adjustments to reconcile income to net cash provided by operating activities:
Depreciation expense	278,200,000	281,900,000
Net gains on sales of assets	(91,000,000.0)	(76,600,000)
Asset impairments	42,300,000	0
Deferred income taxes	24,000,000.0	19,700,000
Share of affiliates’ earnings (losses), net of dividends	(14,800,000)	21,500,000
Changes in working capital items	6,400,000	11,400,000
Net cash provided by operating activities	352,600,000	340,000,000.0
Investing Activities
Portfolio investments and capital additions	(887,900,000)	(893,200,000)
Portfolio proceeds	224,900,000	159,000,000.0
Proceeds from sales of other assets	26,400,000	43,700,000
Other	30,100,000	600,000
Net cash used in investing activities	(606,500,000)	(689,900,000)
Financing Activities
Net proceeds from issuances of debt (original maturities longer than 90 days)	837,800,000	1,319,100,000
Repayments of debt (original maturities longer than 90 days)	(250,000,000.0)	(584,000,000.0)
Net increase (decrease) in debt with original maturities of 90 days or less	700,000	(1,900,000)
Stock repurchases	(47,200,000)	(400,000)
Dividends	(57,900,000)	(56,200,000)
Purchases of assets previously leased	(1,500,000)	(77,200,000)
Other	30,900,000	24,400,000
Net cash provided by financing activities	512,800,000	623,800,000
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(6,800,000)	(1,400,000)
Cash provided by discontinued operations, net	0	1,100,000
Cash, Cash Equivalents, and Restricted Cash at beginning of the period	344,500,000	292,600,000
Cash, Cash Equivalents, and Restricted Cash at end of the period	596,600,000	566,200,000
Net increase in Cash, Cash Equivalents, and Restricted Cash during the period	252,100,000	273,600,000
Non-cash financing lease transactions	$ 0	$ 43,600,000