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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Deferred Financing Costs) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Accounting Policies [Abstract]      
Deferred financing costs $ 22,177us-gaap_DeferredFinanceCostsNet $ 25,061us-gaap_DeferredFinanceCostsNet  
Amortization expense 6,910us-gaap_AmortizationOfFinancingCosts 7,468us-gaap_AmortizationOfFinancingCosts 10,263us-gaap_AmortizationOfFinancingCosts
Accumulated amortization $ 17,302us-gaap_AccumulatedAmortizationDeferredFinanceCosts $ 14,656us-gaap_AccumulatedAmortizationDeferredFinanceCosts