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LEASE OBLIGATIONS (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
USD ($)
shopping_center
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Operating Leased Assets [Line Items]      
Number of shopping centers with land leases | shopping_center 5    
Operating Leases, Future Minimum Payments Due [Abstract]      
2016 $ 1,837    
2017 5,821    
2018 1,838    
2019 1,731    
2020 4,040    
Thereafter (1) [1] 7,369    
Total $ 22,636    
Minimum [Member]      
Operating Leased Assets [Line Items]      
Period of lease term 25 years    
Maximum [Member]      
Operating Leased Assets [Line Items]      
Period of lease term 71 years    
Ground Rent [Member]      
Operating Leased Assets [Line Items]      
Ground lease expense $ 1,700 $ 1,800 $ 1,800
Properties Under Development [Member]      
Operating Leased Assets [Line Items]      
Rent expense capitalized 900 800 800
White Plains Corporate Office [Member]      
Operating Leased Assets [Line Items]      
Ground lease expense $ 1,400 $ 1,500 $ 1,400
[1] The ground lease expiring during 2078 has an option to purchase the underlying land during 2031. If we do not exercise the option, the rents that will be due are based on future values and as such are not determinable at this time. Accordingly, the above table does not include rents for this lease beyond 2031.