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FAIR VALUE MEASUREMENTS - Nonrecurring Basis (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Fair value assumptions, expected holding period (years) 11 years    
Fair value inputs, cap rate (percent) 8.25%    
Fair Value Inputs, Discount Rate (percent) 8.25%    
Fair value of long-lived assets $ 125,000 $ 69,103  
Loss on impairment 105,945 17,858 $ 70,049
Significant Unobservable Inputs (Level 3)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Fair value of long-lived assets 125,000 69,103  
Lakeshore Mall, Pemberton Plaza, and Chapel Hill      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Loss on impairment $ 104,900    
Madison Square and Citadel Mall      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Loss on impairment   $ 17,753