CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash Flows from Operating Activities:
Net Income	$ 62,371	$ 83,939
Adjustments to reconcile net income to net cash provided by operations:
Depreciation	47,638	47,627
Amortization	11,027	9,811
Stock-based compensation	13,362	11,489
Provision for CECL	1,393	342
(Gain) loss on disposition of fixed assets	(182)	91
Net loss (gain) on remeasurement of equity securities	1,250	(16,809)
Deferred income taxes	(2,859)	(3,580)
Defined benefit plan expense	6,225	7,475
Equity in results of affiliates	86	515
Change in fair value of contingent consideration	(1,050)	975
Changes in balance sheet items, excluding effects from foreign currency adjustments:
Accounts and other receivables	(28,977)	(70,194)
Inventories	(21,758)	(26,428)
Prepaid and other current assets	(10,629)	(16,995)
Accounts payable, accrued and other liabilities	32,012	49,764
Income taxes payable	1,697	(3,121)
Retirement and deferred compensation plan liabilities	(19,913)	(5,156)
Other changes, net	384	2,440
Net Cash Provided by Operations	92,077	72,185
Cash Flows from Investing Activities:
Capital expenditures	(73,058)	(63,884)
Proceeds from government grants	7,955	0
Proceeds from sale of property, plant and equipment	446	318
Maturity of short-term investment	24	243
Proceeds from sale of investment in equity securities	1,088	0
Notes receivable, net	(4,876)	(593)
Net Cash Used by Investing Activities	(68,421)	(63,916)
Cash Flows from Financing Activities:
Proceeds from notes payable and overdrafts	9,172	4,019
Repayments of notes payable and overdrafts	(11,293)	(3,180)
Repayments and proceeds of short term revolving credit facility, net	(144,345)	(52,000)
Proceeds from long-term obligations	402,153	2,053
Repayments of long-term obligations	(2,795)	(4,337)
Debt issuance costs	(3,766)	0
Dividends paid	(24,912)	(23,441)
Proceeds from stock option exercises	3,688	31,871
Purchase of treasury stock	(15,983)	0
Net Cash Provided (Used) by Financing Activities	211,919	(45,015)
Effect of Exchange Rate Changes on Cash	(2,871)	(8,539)
Net Increase (Decrease) in Cash and Equivalents and Restricted Cash	232,704	(45,285)
Cash and Equivalents and Restricted Cash at Beginning of Period	122,925	304,970
Cash and Equivalents and Restricted Cash at End of Period	$ 355,629	$ 259,685