Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating activities:
Net earnings	$ 124,942	$ 92,598	$ 66,496
Adjustments to reconcile net earnings to net cash provided by operations:
Depreciation	11,103	10,937	11,090
Amortization	21,082	17,173	15,151
Deferred income taxes	(11,074)	(9,650)	(5,619)
Noncurrent employee benefits	(153)	(338)	(648)
Stock-based compensation expense	6,182	5,188	3,148
Changes in:
Receivables	(1,444)	(6,351)	(11,328)
Inventories	10,320	(32,467)	(21,021)
Payables	(12,161)	8,506	28,007
Prepaid expenses and other assets	(15,312)	(7,012)	(10,557)
Other liabilities	21,549	31,533	7,732
Total adjustments	30,092	17,519	15,955
Net cash provided by operations	155,034	110,117	82,451
Investing activities:
Property, plant and equipment expenditures	(12,818)	(12,003)	(5,891)
Acquisitions, net of cash acquired	(3,000)	(17,127)	0
Net cash used for investing activities	(15,818)	(29,130)	(5,891)
Financing activities:
Dividends paid	(35,847)	(29,052)	(24,881)
Proceeds from exercise of stock options	751	967	703
Repurchase of common stock for treasury stock	0	0	(427)
Net cash used for financing activities	(35,096)	(28,085)	(24,605)
Effect of foreign exchange rates on cash	(597)	828	(1,077)
Increase in cash and cash equivalents	103,523	53,730	50,878
Cash and cash equivalents - beginning of period	191,782	138,052	87,174
Cash and cash equivalents - end of period	295,305	191,782	138,052
Cash paid during the year for:
Income taxes	56,043	38,934	24,038
Interest	0	0	0
Property, plant and equipment acquired through operating lease	2,297	830	2,283
Property, plant and equipment accrued and unpaid	$ 364	$ 450	$ 1,517