CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
CONSOLIDATED STATEMENTS OF EARNINGS [Abstract]
Revenue	$ 1,437,039	$ 1,380,264	$ 1,332,001
Cost of products sold	947,928	925,603	908,254
Selling and administrative expenses	292,360	284,633	271,091
Operating income	196,751	170,028	152,656
Interest expense	14,547	12,544	14,811
Earnings before income taxes	182,204	157,484	137,845
Income taxes	41,317	38,739	28,373
Net earnings	$ 140,887	$ 118,745	$ 109,472
Earnings per common share:
Basic (in dollars per share)	$ 3.36	$ 2.82	$ 2.59
Diluted (in dollars per share)	$ 3.34	$ 2.81	$ 2.59
Weighted average number of common shares outstanding:
Basic (in shares)	41,888	42,077	42,301
Diluted (in shares)	42,213	42,258	42,346