Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating activities
Net earnings	$ 430,483	$ 298,937	$ 123,783
Adjustments to reconcile net earnings (loss) to net cash provided by operating activities:
Depreciation and amortization	163,991	167,037	166,230
(Gain) loss on disposal of property and equipment	(455)	(303)	157
Accretion of interest on convertible debt instruments	0	0	13,161
Inventory write-offs for obsolescence	26,898	20,657	22,730
Pensions and other postretirement benefits, net of contributions	(615)	2,106	2,864
Loss on early extinguishment of debt	0	0	8,073
Deferred income taxes	38,677	50,613	(12,141)
Other operating activities	7,380	16,226	3,304
Change in U.S. transition tax liability	(14,757)	(14,757)	(14,757)
Change in repatriation tax liability	(25,201)	0	(16,258)
Net change in operating assets and liabilities, net of effects of businesses acquired	(142,113)	(83,412)	17,792
Net cash provided by operating activities	484,288	457,104	314,938
Investing activities
Capital expenditures	(325,308)	(218,372)	(123,599)
Proceeds from sale of property and equipment	1,198	1,317	403
Purchase of businesses, net of cash acquired	(50,000)	(20,847)	(25,852)
Purchase of short-term investments	(285,956)	(140,603)	(293,087)
Maturity of short-term investments	132,901	147,893	250,580
Other investing activities	(1,766)	129	(529)
Net cash used in investing activities	(528,931)	(230,483)	(192,084)
Financing activities
Repurchase of convertible debt instruments	0	(300)	(151,683)
Net proceeds (payments) on revolving credit lines	42,000	0	0
Net changes in short-term borrowings	0	0	(114)
Repurchase of common stock held in treasury	(82,972)	0	0
Distributions to noncontrolling interests	(741)	(800)	(600)
Cash withholding taxes paid when shares withheld for vested equity awards	(2,123)	(1,963)	(2,016)
Net cash provided by (used in) financing activities	(101,023)	(58,814)	(209,382)
Effect of exchange rate changes on cash and cash equivalents	(17,617)	(13,573)	12,269
Net increase (decrease) in cash and cash equivalents	(163,283)	154,234	(74,259)
Cash and cash equivalents at beginning of year	774,108	619,874	694,133
Cash and cash equivalents at end of year	610,825	774,108	619,874
Common Stock [Member]
Financing activities
Dividends paid	(52,348)	(51,094)	(50,372)
Class B Convertible Common Stock [Member]
Financing activities
Dividends paid	$ (4,839)	$ (4,657)	$ (4,597)