SEGMENT INFORMATION (Reconciliation) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Operating income	$ 373,626	$ 325,120	$ 296,519
Interest expense	(33,983)	(41,471)	(41,248)
Other income, net	16,596	15,970	12,690
Earnings before income taxes	356,239	299,619	267,961
Assets
Total assets	3,255,385	3,236,321	3,037,781
Non Segment Cash [Member]
Assets
Total assets	138,053	204,664	357,021
Non Segment Other Assets [Member]
Assets
Total assets	37,360	60,031	21,540
Corporate And Other [Member]
Segment Reporting Information [Line Items]
Operating income	(36,347)	(33,483)	(32,107)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating income	409,973	358,603	328,626
Assets
Total assets	3,079,972	2,971,626	2,659,220
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating income	373,626	325,120	296,519
Assets
Total assets	3,255,385	3,236,321	3,037,781
Operating Segments [Member] | Corporate And Other [Member]
Segment Reporting Information [Line Items]
Operating income	(36,347)	(33,483)	(32,107)
Assets
Total assets	$ 175,413	$ 264,695	$ 378,561