SEGMENT INFORMATION (Reconciliation) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Segment Reporting Information [Line Items]
Operating income	$ 161,446	$ 186,854	$ 166,685
Interest expense	(26,329)	(20,834)	(22,107)
Other income, net	245	862	575
Earnings before income taxes	135,362	166,882	145,153
Assets
Total assets	3,114,588	2,635,547	2,233,141
Reportable Segment [Member]
Assets
Total assets	3,084,238	2,560,161	2,199,970
Corporate And Other [Member]
Segment Reporting Information [Line Items]
Operating income	(31,342)	(23,466)	(30,820)
Assets
Total assets	30,350	75,386	33,171
Non Segment Cash [Member]
Assets
Total assets	550	227	299
Non Segment Other Assets [Member]
Assets
Total assets	$ 29,800	$ 75,159	$ 32,872