Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE MEASUREMENTS - Narrative (Details)

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FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($)
 6 Months Ended 12 Months Ended
Jun. 30, 2015
Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Unrealized losses forecasted to be included in earnings transferred from AOCI in the next twelve months $ 1,300,000  
Reported Value Measurement [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fixed rate mortgages, fair value 182,300,000 $ 153,400,000
Level 2 [Member] | Recurring [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fixed rate mortgages, fair value $ 187,700,000 $ 158,300,000
Weighted average market interest rate 3.53% 3.59%
Weighted average contractual interest rate 5.10% 5.11%
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Notional amount $ 125,000,000.0 $ 125,000,000.0
Weighted average remaining term 2 years 9 months  
Weighted average fixed rate 1.42%  
Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Notional amount $ 7,500,000 $ 7,600,000
Weighted average remaining term 6 years 7 months 18 days  
Weighted average fixed rate 2.28%