CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 50,561	$ 45,274
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation	13,250	12,793
Deferred income taxes	(921)	(1,444)
Amortization of marketable security premiums	4,313	2,645
Changes in operating assets and liabilities:
Accounts receivable	(27,489)	(39,947)
Other receivables	(823)	(291)
Inventories	(34,012)	(12,440)
Prepaid expenses and other assets	5,886	3,980
Accounts payable and accrued liabilities	22,126	22,182
Income taxes payable	(446)	(83)
Postretirement health care benefits	(630)	(1,026)
Deferred compensation and other liabilities	(1,219)	510
Net cash provided by operating activities	30,596	32,153
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(17,552)	(22,930)
Repayment of premiums on split dollar life insurance policies		2,514
Purchases of trading securities	(1,292)	(2,108)
Sales of trading securities	2,567	582
Purchase of available for sale securities	(75,125)	(87,060)
Sale and maturity of available for sale securities	38,439	34,510
Net cash used in investing activities	(52,963)	(74,492)
CASH FLOWS FROM FINANCING ACTIVITIES:
Shares purchased and retired	(8,024)	(30,184)
Dividends paid in cash	(18,438)	(18,100)
Proceeds from bank loans	3,240	2,970
Repayment of bank loans	(3,102)	(2,798)
Net cash used in financing activities	(26,324)	(48,112)
Effect of exchange rate changes on cash	13	(202)
Decrease in cash and cash equivalents	(48,678)	(90,653)
Cash, cash equivalents and restricted cash at beginning of year	106,226	167,256
Cash, cash equivalents and restricted cash at end of quarter	57,548	76,603
Supplemental cash flow information:
Income taxes paid/(received), net	15,580	15,237
Interest paid	36	5
Stock dividend issued	$ 70,242	$ 64,667