Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash Flows from Operating Activities
Net Income	$ 268,244,000	$ 63,025,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and goodwill and other long-lived asset impairments	127,261,000	130,568,000
Amortization of lease right-of-use asset	55,246,000	70,214,000
Net pension benefit and special separation benefit expense	(68,644,000)	(27,669,000)
Gain on marketable equity securities and cost method investments, net	(179,737,000)	(493,000)
Gain on disposition and write-down of businesses, property, plant and equipment, investments and other assets, net	(14,406,000)	(5,918,000)
Provision for doubtful trade receivables	4,171,000	8,229,000
Stock-based compensation expense, net	4,686,000	4,758,000
Foreign exchange gain	(674,000)	(877,000)
Equity in (earnings) losses of affiliates, net of distributions	(11,364,000)	2,784,000
Provision for (benefit from) deferred income taxes	43,580,000	(733,000)
Accretion expense and change in fair value of contingent consideration liabilities	(4,325,000)	0
Change in operating assets and liabilities:
Accounts receivable, net	(27,350,000)	139,306,000
Inventories	21,117,000	51,000
Accounts payable and accrued liabilities	(7,979,000)	(65,708,000)
Deferred revenue	33,561,000	(26,094,000)
Income taxes receivable	10,724,000	(190,000)
Lease liabilitites	(61,775,000)	(67,299,000)
Other assets and other liabilities, net	3,192,000	16,791,000
Other	1,743,000	145,000
Net Cash Provided by Operating Activities	197,271,000	240,890,000
Cash Flows from Investing Activities
Investments in certain businesses, net of cash acquired	(272,428,000)	(20,080,000)
Purchases of property, plant and equipment	(140,935,000)	(56,121,000)
Purchases of marketable equity securities	(48,036,000)	0
Proceeds from sales of marketable equity securities	38,308,000	93,775,000
Investments in equity affiliates, cost method and other investments	(6,610,000)	(8,298,000)
Net proceeds from disposition of businesses, property, plant and equipment, investments and other assets	8,771,000	1,570,000
Return of investment in equity affiliates	474,000	314,000
Other	0	1,562,000
Net Cash (Used in) Provided by Investing Activities	(420,456,000)	12,722,000
Cash Flows from Financing Activities
Deferred payments of acquisition	(30,866,000)	(5,010,000)
Dividends paid	(22,659,000)	(22,870,000)
Net payments under revolving credit facilities	37,696,000	75,905,000
Repayments of borrowings	(16,878,000)	(75,841,000)
Issuance of borrowings	22,684,000	2,084,000
Common shares repurchased	(21,840,000)	(123,155,000)
Net payments on vehicle floor plan payable	(15,035,000)	(16,300,000)
Purchase of noncontrolling interest	(3,508,000)	0
Proceeds from bank overdrafts	1,137,000	6,454,000
Proceeds from exercise of stock options	0	5,335,000
Other	1,244,000	(276,000)
Net Cash Used in Financing Activities	(48,025,000)	(153,674,000)
Effect Of Currency Exchange Rate Change	(2,908,000)	(2,729,000)
Net (Decrease) Increase in Cash and Cash Equivalents and Restricted Cash	(274,118,000)	97,209,000
Beginning Cash and Cash Equivalents and Restricted Cash	423,054,000	214,044,000
Ending Cash and Cash Equivalents and Restricted Cash	$ 148,936,000	$ 311,253,000