Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock at $1 par value	[1]	Capital in excess of par value	Reinvested earnings	Accumulated other comprehensive income (loss)	Treasury stock (at cost)
Balance at beginning of period at Dec. 31, 2021	$ 403,070	$ 37,221		$ 49,224	$ 353,535	$ 136	$ (37,046)
Net earnings	66,496				66,496
Pension and postretirement benefits (net of tax effect)	600					600
Foreign currency translation	(6,719)					(6,719)
Cash dividends	(24,876)				(24,876)
Stock options exercised	703			581			122
Stock-based compensation	3,148			3,148
Purchase of common stock for treasury stock	(427)						(427)
Issuance of treasury stock	427			329			98
Balance at end of period at Dec. 31, 2022	442,422	37,221		53,282	395,155	(5,983)	(37,253)
Net earnings	92,598				92,598
Pension and postretirement benefits (net of tax effect)	(74)					(74)
Foreign currency translation	4,411					4,411
Cash dividends	(29,034)				(29,034)
Stock options exercised	967			824			143
Stock-based compensation	5,188			5,188
Issuance of treasury stock	4			(109)			113
Balance at end of period at Dec. 31, 2023	516,482	37,221		59,185	458,719	(1,646)	(36,997)
Net earnings	124,942				124,942
Pension and postretirement benefits (net of tax effect)	226					226
Foreign currency translation	(6,486)					(6,486)
Cash dividends	(35,865)				(35,865)
Stock options exercised	751			646			105
Stock-based compensation	6,182			6,182
Issuance of treasury stock				(194)			194
Balance at end of period at Dec. 31, 2024	$ 606,232	$ 37,221		$ 65,819	$ 547,796	$ (7,906)	$ (36,698)

[1] Each common share of stock equals $1 par value; therefore, the number of common shares is the same as the dollar value.