SEGMENT INFORMATION (Reconciliation) (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Operating income	$ 403,953,000	$ 373,626,000	$ 325,120,000
Interest expense	(31,347,000)	(33,983,000)	(41,471,000)
Other income, net	23,856,000	16,596,000	15,970,000
Earnings before income taxes	396,462,000	356,239,000	299,619,000
Assets
Total assets	3,764,261,000	3,255,385,000	3,236,321,000
Non Segment Cash [Member]
Assets
Total assets	235,260,000	138,053,000	204,664,000
Non Segment Other Assets [Member]
Assets
Total assets	69,976,000	37,360,000	60,031,000
Corporate And Other [Member]
Segment Reporting Information [Line Items]
Operating income	(35,109,000)	(36,347,000)	(33,483,000)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating income	439,062,000	409,973,000	358,603,000
Assets
Total assets	3,459,025,000	3,079,972,000	2,971,626,000
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating income	403,953,000	373,626,000	325,120,000
Assets
Total assets	3,764,261,000	3,255,385,000	3,236,321,000
Operating Segments [Member] | Corporate And Other [Member]
Segment Reporting Information [Line Items]
Operating income	(35,109,000)	(36,347,000)	(33,483,000)
Assets
Total assets	$ 305,236,000	$ 175,413,000	$ 264,695,000