CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CONSOLIDATED STATEMENTS OF EARNINGS [Abstract]
Revenue	$ 355,521	$ 359,702
Cost of products sold	230,675	244,089
Selling and administrative expenses	72,057	68,716
Operating income	52,789	46,897
Interest expense	2,993	3,433
Earnings before income taxes	49,796	43,464
Income taxes	12,725	11,796
Net earnings	$ 37,071	$ 31,668
Weighted average number of common shares outstanding:
Basic (in shares)	41,865	42,263
Diluted (in shares)	42,148	42,389
Earnings per common share:
Basic (in dollars per share)	$ 0.89	$ 0.75
Diluted (in dollars per share)	0.88	0.75
Dividends declared per common share (in dollars per share)	$ 0.41	$ 0.39