Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash Flows from Operating Activities
Net Income (Loss)	$ 112,635,000	$ (33,891,000)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and goodwill and other long-lived asset impairments	31,529,000	47,270,000
Amortization of lease right-of-use asset	18,594,000	23,749,000
Net pension benefit	(24,501,000)	(13,784,000)
(Gain) loss on marketable equity securities and cost method investments, net	(81,937,000)	100,393,000
(Gain) loss on disposition and write-down of businesses, property, plant and equipment and investments, net	(240,000)	2,761,000
Provision for doubtful trade receivables	1,126,000	2,429,000
Stock-based compensation expense, net	1,485,000	1,568,000
Foreign exchange gain	(3,000)	(4,290,000)
Write-down of cost method investments	0	2,577,000
Equity in (earnings) losses of affiliates, net of distributions	(11,241,000)	1,547,000
Provision for (benefit from) deferred income taxes	29,311,000	(21,550,000)
Change in operating assets and liabilities:
Accounts receivable, net	25,196,000	100,732,000
Inventories	(11,493,000)	(8,512,000)
Accounts payable and accrued liabilities	(29,965,000)	(97,476,000)
Deferred revenue	(6,655,000)	(12,790,000)
Income taxes receivable	10,860,000	(27,774,000)
Lease liabilitites	(21,119,000)	(22,503,000)
Other assets and other liabilities, net	(20,881,000)	(24,980,000)
Other	1,298,000	(496,000)
Net Cash Provided by Operating Activities	23,999,000	12,403,000
Cash Flows from Investing Activities
Purchases of marketable equity securities	(48,036,000)	0
Purchases of property, plant and equipment	(13,113,000)	(25,235,000)
Investments in equity affiliates, cost method and other investments	(2,415,000)	(7,427,000)
Net proceeds from disposition of businesses, property, plant and equipment and investments	270,000	218,000
Proceeds from sales of marketable equity securities	0	48,016,000
Investments in certain businesses, net of cash acquired	0	(6,011,000)
Other	4,000	0
Net Cash (Used in) Provided by Investing Activities	(63,290,000)	9,561,000
Cash Flows from Financing Activities
Dividends paid	(7,553,000)	(7,703,000)
Purchase of noncontrolling interest	(3,508,000)	0
Proceeds from bank overdrafts	3,212,000	9,062,000
Net proceeds from vehicle floor plan payable	2,462,000	2,478,000
Net payments under revolving credit facilities	(2,223,000)	0
Deferred payments of acquisition	(1,340,000)	(2,423,000)
Repayments of borrowings	(1,034,000)	(847,000)
Common shares repurchased	0	(33,610,000)
Proceeds from exercise of stock options	0	5,335,000
Issuance of borrowings	0	1,023,000
Other	(145,000)	0
Net Cash Used in Financing Activities	(10,129,000)	(26,685,000)
Effect Of Currency Exchange Rate Change	(1,015,000)	(7,684,000)
Net Decrease in Cash and Cash Equivalents and Restricted Cash	(50,435,000)	(12,405,000)
Beginning Cash and Cash Equivalents and Restricted Cash	423,054,000	214,044,000
Ending Cash and Cash Equivalents and Restricted Cash	$ 372,619,000	$ 201,639,000