Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Operating activities:
Net earnings	$ 141,634	$ 124,942	$ 92,598
Adjustments to reconcile net earnings to net cash provided by operations:
Depreciation	11,103	11,103	10,937
Amortization	23,481	21,082	17,173
Deferred income taxes	(854)	(11,074)	(9,650)
Noncurrent employee benefits	136	(153)	(338)
Stock-based compensation expense	9,190	6,182	5,188
Changes in:
Receivables	(20,115)	(1,444)	(6,351)
Inventories	(987)	10,320	(32,467)
Payables	14,399	(12,161)	8,506
Prepaid expenses and other assets	(3,804)	(15,312)	(7,012)
Other liabilities	9,515	21,549	31,533
Total adjustments	42,064	30,092	17,519
Net cash provided by operations	183,698	155,034	110,117
Investing activities:
Property, plant and equipment expenditures	(14,026)	(12,818)	(12,003)
Acquisitions, net of cash acquired	(184,024)	(3,000)	(17,127)
Net cash used for investing activities	(198,050)	(15,818)	(29,130)
Financing activities:
Dividends paid	(43,529)	(35,847)	(29,052)
Proceeds from exercise of stock options	554	751	967
Repurchase of common stock for treasury stock	(15,002)	0	0
Net cash used for financing activities	(57,977)	(35,096)	(28,085)
Effect of foreign exchange rates on cash	3,040	(597)	828
(Decrease) increase in cash and cash equivalents	(69,289)	103,523	53,730
Cash and cash equivalents - beginning of period	295,305	191,782	138,052
Cash and cash equivalents - end of period	226,016	295,305	191,782
Cash paid during the year for:
Income taxes	48,753	56,043	38,934
Interest	0	0	0
Property, plant and equipment acquired through operating lease	5,526	2,297	830
Property, plant and equipment accrued and unpaid	$ 0	$ 364	$ 450