Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows – Operating activities:
Net earnings, including noncontrolling interests	$ 29,996	$ (13,679)
Adjustments to reconcile net earnings (loss) to net cash provided (used) by operating activities:
Depreciation	18,928	20,148
Amortization of intangible and other assets	2,663	3,396
Stock-based compensation	9,953	11,011
Foreign currency, asset write downs and other non-cash adjustments	(2,728)	6,893
Change in assets and liabilities:
Accounts receivable, net	(26,249)	5,039
Inventories, net	(70,721)	(48,715)
Contract assets, net	4,325	(5,655)
Prepaid expenses and other, net	(16,019)	(33,197)
Accounts payable	7,008	8,204
Contract liabilities	32,676	2,600
Accrued liabilities and income taxes payable	35,374	7,302
Retirement obligations and other liabilities	9,477	10,912
Net deferred taxes	(8,095)	(1,032)
Net cash flows provided (used) by operating activities	26,588	(26,773)
Cash flows – Investing activities:
Capital expenditures	(15,318)	(14,052)
Other	(1,138)	1,834
Net cash flows provided (used) by investing activities	(16,456)	(12,218)
Cash flows – Financing activities:
Payments on term loan	(10,000)	(7,593)
Proceeds under other financing arrangements	78	555
Payments under other financing arrangements	(1,515)	(484)
Payments related to tax withholding for stock-based compensation	(5,850)	(4,304)
Payments of dividends	(26,229)	(26,128)
Other	(303)	(437)
Net cash flows provided (used) by financing activities	(43,819)	(38,391)
Effect of exchange rate changes on cash	3,442	(5,275)
Net change in cash and cash equivalents	(30,245)	(82,657)
Cash and cash equivalents at beginning of period	434,971	658,452
Cash and cash equivalents at end of period	$ 404,726	$ 575,795