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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Details) (USD $) |  |  | 1 Months Ended |  |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2012 | Dec. 31, 2012 Derivatives designated as hedging instruments | Dec. 31, 2011 Derivatives designated as hedging instruments | Aug. 31, 2012 Interest rate swaps Derivatives designated as hedging instruments Item | Dec. 31, 2012 Interest rate swaps Derivatives designated as hedging instruments | Dec. 31, 2011 Interest rate swaps Derivatives designated as hedging instruments | Dec. 31, 2012 Interest rate swaps effective on September 20, 2014 Derivatives designated as hedging instruments | Dec. 31, 2012 Interest rate swaps effective on June 30, 2017 Derivatives designated as hedging instruments
DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES |  |  |  |  |  |  |  |
Total outstanding notional amount of cash flow hedges | $ 143,000,000 |  |  |  |  |  |  |
Amount to be reclassified from AOCI to interest expense in next 12 months | 4,100,000 |  |  |  |  |  |  |
Derivative instruments and hedging activities |  |  |  |  |  |  |  |
Additional forward-starting interest rate swaps |  |  |  | 2 |  |  |  |
Notional amount of interest rate cash flow hedge derivative acquired |  |  |  |  |  |  | 20,000,000 | 100,000,000
Expanded notional amount of interest rate cash flow hedge derivative |  |  |  |  |  |  | 130,000,000 |
Fair Value, liability derivatives |  | $ 11,142,000 | $ 11,337,000 |  | $ 11,142,000 | $ 11,337,000 |  |

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- Definition Fair value of derivative liability, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 205G -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 44C -Subparagraph a -Clause 1 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 + Details
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