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DERIVATIVE FINANCIAL INSTRUMENTS AND BALANCE SHEET OFFSETTING (Details) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Designated as Hedging Instrument |  |  |  |
Fair Values of Derivative Instruments |  |  |  |
Notional amount | $ 70,000 |  | $ 50,000 |
Derivative liabilities | 2,821 | [1] | 1,521 | [1]
Designated as Hedging Instrument | Interest rate swaps |  |  |  |
Fair Values of Derivative Instruments |  |  |  |
Notional amount | 70,000 |  | 50,000 |
Derivative liabilities | 2,821 | [1] | 1,521 | [1]
Not Designated as Hedging Instrument |  |  |  |
Fair Values of Derivative Instruments |  |  |  |
Notional amount | 1,468,947 |  | 1,388,866 |
Derivative assets | 40,835 | [1] | 42,850 | [1]
Derivative liabilities | 38,203 | [1] | 40,539 | [1]
Not Designated as Hedging Instrument | Foreign exchange options |  |  |  |
Fair Values of Derivative Instruments |  |  |  |
Notional amount | 85,614 |  | 85,614 |
Derivative assets | 5,340 | [1] | 5,011 | [1]
Derivative liabilities | 3,233 | [1] | 3,052 | [1]
Not Designated as Hedging Instrument | Interest rate swaps |  |  |  |
Fair Values of Derivative Instruments |  |  |  |
Notional amount | 1,244,393 |  | 1,190,793 |
Derivative assets | 34,192 | [1] | 36,943 | [1]
Derivative liabilities | 33,832 | [1] | 36,799 | [1]
Not Designated as Hedging Instrument | Short-term Foreign Exchange |  |  |  |
Fair Values of Derivative Instruments |  |  |  |
Notional amount | 138,940 |  | 112,459 |
Derivative assets | 1,303 | [1] | 896 | [1]
Derivative liabilities | 1,138 | [1] | 688 | [1]
Gross aggregate value of assets and liabilities | $ 461 |  | $ 495 |
[1] | Derivative assets, which are a component of other assets, include the estimated settlement of the derivative asset position. Derivative liabilities, which are a component of other liabilities and deposits, include the estimated settlement of the derivative liability position.

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- Definition Represents the gross assets and liabilities of the counterparty. + References No definition available. + Details
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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Fair value of derivative asset, 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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- 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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