QUARTERLY FINANCIAL INFORMATION (UNAUDITED) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2025	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 263,617	$ 267,558	$ 255,467	$ 250,519	$ 240,004	$ 239,940	$ 234,081	$ 239,659	$ 1,037,161	$ 953,684	$ 922,439
Gross margin	93,899	95,453	93,113	88,168	86,337	85,361	82,994	81,514	370,633	336,206	302,056
Earnings before income taxes	50,035	52,044	49,011	47,940	44,484	43,893	41,226	36,850	199,030	166,453	137,261
Net earnings	$ 39,225	$ 40,289	$ 38,278	$ 37,053	$ 33,583	$ 33,837	$ 32,069	$ 28,986	$ 154,845	$ 128,475	$ 108,543
Basic net earnings per common share (in dollars per share)	$ 1.23	$ 1.25	$ 1.18	$ 1.14	$ 1.05	$ 1.05	$ 0.99	$ 0.90	$ 4.80	$ 3.97	$ 3.38
Diluted net earnings per common share (in dollars per share)	$ 1.21	$ 1.24	$ 1.17	$ 1.13	$ 1.03	$ 1.03	$ 0.98	$ 0.89	$ 4.75	$ 3.93	$ 3.35