Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities:
Net earnings	$ 28,986	$ 22,710
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	13,668	13,646
Stock compensation expense	4,750	4,770
Deferred income taxes	(302)	(203)
Provision for doubtful accounts	223	31
Unrealized gain on foreign currency transactions and deferred compensation	(726)	(349)
Gain on disposal of assets	(144)	(968)
Change in fair value of contingent consideration liability	0	1,600
Changes in assets and liabilities
Accounts receivable	(15,010)	403
Inventories	(1,458)	(5,145)
Prepaid expenses and other current assets	564	(2,747)
Accounts payable and accrued expenses	(4,584)	(5,112)
Income taxes	6,929	5,540
Other	492	662
Net cash provided by operating activities	33,388	34,838
Cash flows from investing activities:
Capital expenditures and intangible assets acquired	(6,910)	(9,664)
Cash paid for acquisitions, net of cash acquired	0	(341)
Proceeds from sale of assets	213	0
Investment in affiliates	(42)	(56)
Net cash used in investing activities	(6,739)	(10,061)
Cash flows from financing activities:
Proceeds from revolving loan	26,000	13,000
Principal payments on revolving loan	(34,000)	(22,000)
Principal payments on finance lease	(57)	(55)
Proceeds from stock options exercised	8,791	2,453
Dividends paid	(25,555)	(22,867)
Repurchases of common stock	(5,202)	(3,849)
Net cash used in financing activities	(30,023)	(33,318)
Effect of exchange rate changes on cash	(724)	2,180
Decrease in cash and cash equivalents	(4,098)	(6,361)
Cash and cash equivalents beginning of period	64,447	66,560
Cash and cash equivalents end of period	$ 60,349	$ 60,199