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FAIR VALUE MEASUREMENT AND FAIR VALUE OF FINANCIAL INSTRUMENTS (Details 2) - Fair Value, Measurements, Recurring - Significant Unobservable Inputs (Level 3) - Corporate debt securities - Non-investment grade - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014
Reconciliation of assets measured at fair value on a recurring basis using significant unobservable inputs |  |  |
Beginning balance | $ 7,917 | $ 6,528 | $ 6,371
Total gains (losses) for the period: |  |  |
Included in earnings |  | 960 |
Included in other comprehensive income | 1,009 | 922 | 2,652
Purchases, issues, sales, settlements: |  |  |
Sales |  | (7,219) |
Settlements | (17) | (98) | (114)
Transfers in and/or out of Level 3 |  | (1,093) |
Ending balance | $ 8,909 | $ 0 | $ 8,909

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