CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Cash Flows from Operating Activities:
Net Income	$ 99,922	$ 84,298	$ 273,313	$ 221,931
Adjustments to reconcile net income to net cash provided by operations:
Depreciation			162,925	150,718
Amortization			33,407	33,494
Stock-based compensation			37,962	36,084
(Release) provision for CECL			(1,221)	3,449
Gain on disposition of fixed assets			(462)	(3,753)
Net gain on remeasurement of equity securities			(1,495)	(1,839)
Deferred income taxes			(11,653)	(16,978)
Defined benefit plan expense			9,296	10,659
Equity in results of affiliates			168	(1,514)
Changes in balance sheet items, excluding effects from foreign currency adjustments:
Accounts and other receivables			(24,054)	(43,061)
Inventories			22,653	(5,188)
Prepaid and other current assets			(13,970)	(19,236)
Accounts payable, accrued and other liabilities			(14,371)	3,860
Income taxes payable			6,672	(8,732)
Retirement and deferred compensation plan liabilities			(3,832)	1,323
Other changes, net			(10,164)	(5,615)
Net Cash Provided by Operations			465,174	355,602
Cash Flows from Investing Activities:
Capital expenditures			(210,416)	(231,199)
Proceeds from sale of property, plant and equipment			1,020	6,037
Maturity of short-term investment			(2,242)	0
Acquisition of businesses, net of cash acquired and release of escrow			0	(16,570)
Acquisition of intangible assets, net			(13,242)	(3,648)
Proceeds from sale of investment in equity securities			0	5,604
Notes receivable, net			(776)	439
Net Cash Used by Investing Activities			(225,656)	(239,337)
Cash Flows from Financing Activities:
Proceeds from notes payable and overdrafts			22,302	24,392
Repayments of notes payable and overdrafts			(23,184)	(27,863)
Proceeds and (repayments) of short-term revolving credit facility, net			138,058	123,514
Proceeds from long-term obligations			168,614	257
Repayments of long-term obligations			(372,393)	(117,289)
Payment of contingent consideration obligation			0	(22,750)
Dividends paid			(84,108)	(76,711)
Proceeds from stock option exercises			44,364	39,742
Purchase of treasury stock			(31,303)	(37,302)
Net Cash Used by Financing Activities			(137,650)	(94,010)
Effect of Exchange Rate Changes on Cash			13	(12,914)
Net Increase in Cash and Equivalents and Restricted Cash			101,881	9,341
Cash and Equivalents and Restricted Cash at Beginning of Period			223,643	142,732	$ 142,732
Cash and Equivalents and Restricted Cash at End of Period	325,524	152,073	325,524	152,073	223,643
Cash and equivalents	325,524	151,573	325,524	151,573	223,643
Restricted cash included in prepaid and other	0	500	0	500
Total Cash and Equivalents and Restricted Cash shown in the Statement of Cash Flows	$ 325,524	$ 152,073	$ 325,524	$ 152,073	$ 223,643