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FAIR VALUE MEASUREMENT AND FAIR VALUE OF FINANCIAL INSTRUMENTS (Details 2) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Derivative Liabilities |  |  |  |  |  |  |  |
Reconciliation of the beginning and ending balances for major liability categories measured at fair value on a recurring basis using significant unobservable inputs (Level 3) |  |  |  |  |  |  |  |
Beginning balance | $ (3,362) |  | $ (3,257) |  | $ (3,655) |  | $ (3,052) |
Total gains or (losses) for the period: |  |  |  |  |  |  |  |
Included in earnings | (64) | [1] | (254) | [1] | 229 | [1] | (459) | [1]
Ending balance | (3,426) |  | (3,511) |  | (3,426) |  | (3,511) |
Changes in unrealized gains (losses) included in earnings relating to assets and liabilities held at the end of period | 64 |  | 254 |  | 229 |  | 459 |
Corporate debt securities | Non-investment grade |  |  |  |  |  |  |  |
Reconciliation of the beginning and ending balances for major asset categories measured at fair value on a recurring basis using significant unobservable inputs (Level 3) |  |  |  |  |  |  |  |
Opening balance | 7,917 |  | 5,517 |  | 6,371 |  | 4,800 |
Total gains or (losses) for the period: |  |  |  |  |  |  |  |
Included in other comprehensive income (unrealized) | 1,009 | [1],[2] | 619 | [1],[2] | 2,652 | [1],[2] | 1,406 | [1],[2]
Purchases, issues, sales, settlements |  |  |  |  |  |  |  |
Sales | 0 |  |  |  | 0 |  |  |
Settlements | (17) |  | (4) |  | (114) |  | (74) |
Closing balance | $ 8,909 |  | $ 6,132 |  | $ 8,909 |  | $ 6,132 |
[1] | Total gains or losses represent the total realized and unrealized gains and losses recorded for Level 3 assets and liabilities. Realized gains or losses are included in net gains on sale of investment securities in the consolidated statements of income.
[2] | Unrealized gains or losses on investment securities are reported in other comprehensive income (loss), net of tax, in the consolidated statements of comprehensive income.

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- Definition Amount of unrealized (holding) gain (loss) which is included in the statement of income (or changes in net assets) related to those assets still held at the reporting date for which fair value is measured on a recurring basis using significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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- Definition Amount of gain (loss) recognized in other comprehensive income (loss) for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1a) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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