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SEGMENT INFORMATION (Details2) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Segment Reporting Information [Line Items]      
Assets $ 11,635,128 $ 11,669,668  
Intersegment Elimination [Member]
     
Segment Reporting Information [Line Items]      
Other Investments 5,901 5,956 5,428
Cash 55,195 9,552 14,359
Deferred charges-other 1,923 18,135 19,808
Assets $ 63,019 $ 33,643 $ 39,595