SEGMENT INFORMATION (Details2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Segment Reporting Information [Line Items]
Assets	$ 11,984,136	$ 11,667,129	$ 11,700,283
Intersegment Elimination [Member]
Segment Reporting Information [Line Items]
Other Investments	6,499	5,901	5,956
Cash	60,786	55,195	9,552
Deferred charges-other	10,725	1,923	18,135
Assets	$ 78,010	$ 63,019	$ 33,643