QUARTERLY RESULTS OF OPERATIONS (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Net Sales	$ 648,622	$ 595,393	$ 620,298	$ 547,522	$ 611,881	$ 567,901	$ 567,653	$ 523,591	$ 2,411,835	$ 2,271,026	$ 2,108,931
Gross Profit	241,052	222,518	226,500	181,191	231,344	207,496	195,010	166,935	871,261	800,785	734,691
Earnings from continuing operations									275,749	214,891	189,382
Earnings from discontinued operations									0	0	(2,053)
Net earnings	$ 82,835	$ 74,483	$ 74,788	$ 43,643	$ 67,750	$ 63,944	$ 50,650	$ 32,547	$ 275,749	$ 214,891	$ 187,329
Basic earnings per share
Earnings from continuing operations									$ 6.28	$ 4.86	$ 4.27
Earnings from discontinued operations									0.00	0.00	(0.05)
Total	$ 1.91	$ 1.70	$ 1.69	$ 0.99	$ 1.54	$ 1.45	$ 1.15	$ 0.74	6.28	4.86	4.22
Diluted earnings per share
Earnings from continuing operations									6.22	4.80	4.20
Earnings from discontinued operations									0.00	0.00	(0.05)
Total	$ 1.89	$ 1.68	$ 1.68	$ 0.98	$ 1.52	$ 1.43	$ 1.13	$ 0.73	$ 6.22	$ 4.80	$ 4.15