| FAIR VALUE - Derivative Liabilities (Details 1) (Interest rate swaps [Member], USD $) In Thousands, unless otherwise specified | 9 Months Ended | |
|---|---|---|
| Sep. 30, 2014 | Dec. 31, 2013 | |
| Designated as hedging instrument [Member] | ||
| Agreement type | Receive 1-Month LIBOR | |
| Derivative maturity date | Apr. 30, 2016 | |
| Aggregate notional amount | $ 83,673 | $ 105,031 | 
| Weighted average fixed pay rate | 5.04% | |
| Aggregate fair value of hedges | 2,852 | |
| Not designated as hedging instrument [Member] | ||
| Agreement type | Receive 1-Month LIBOR | |
| Derivative maturity date | Mar. 31, 2015 | |
| Aggregate notional amount | 130,342 | 185,871 | 
| Weighted average fixed pay rate | 4.85% | |
| Aggregate fair value of non-hedge instruments | $ 1,676 | 
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- Definition Average fixed interest rate related to the group of interest rate derivatives. No definition available. 
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- Definition Aggregate fair value of all derivative liabilities designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as a liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Nominal or face amount used to calculate payments on the derivative liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Date the derivative contract matures, in CCYY-MM-DD format. No definition available. 
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- Definition Description of the type of derivative instrument, such as a swap, forward, and option. Excludes the underlying risk of the instrument. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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