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STOCKHOLDERS' EQUITY AND EARNINGS PER SHARE (Details 5) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Unrealized (losses) gains on available-for-sale investment securities: |  |  |  |  |
Net unrealized (losses) gains arising during the period, before-tax amount |  | $ (8,473) | $ 25,681 | $ 12,009 | $ 52,271
Reclassification adjustment for gains included in net income, before-tax amount | [1] | (5,554) | (671) | (9,958) | (4,089)
Net change, before-tax amount |  | (14,027) | 25,010 | 2,051 | 48,182
Unrealized gains (losses) on other investments: |  |  |  |  |
Net unrealized gains (losses) arising during the period, before-tax amount |  | 18 | (7) | 5 | (36)
Net change, before-tax amount |  | 18 | (7) | 5 | (36)
Other comprehensive (loss) income, before-tax amount |  | (14,009) | 25,003 | 2,056 | 48,146
Unrealized (losses) gains on available-for-sale investment securities: |  |  |  |  |
Net unrealized (losses) gains arising during the period, tax expense or benefit |  | 3,559 | (10,786) | (5,043) | (21,954)
Reclassification adjustment for gains included in net income, tax expense or benefit |  | 2,333 | 282 | 4,182 | 1,717
Net change, tax expense or benefit |  | 5,892 | (10,504) | (861) | (20,237)
Unrealized gains (losses) on other investments: |  |  |  |  |
Net unrealized gains (losses) arising during the period, tax expense or benefit |  | (8) | 3 | (2) | 15
Net change, tax expense or benefit |  | (8) | 3 | (2) | 15
Other comprehensive (loss) income, tax expense or benefit |  | 5,884 | (10,501) | (863) | (20,222)
Unrealized (losses) gains on available-for-sale investment securities: |  |  |  |  |
Net unrealized (losses) gains arising during the period, net-of-tax amount |  | (4,914) | 14,895 | 6,966 | 30,317
Reclassification adjustment for gains included in net income, net-of-tax amount |  | (3,221) | (389) | (5,776) | (2,372)
Net change, net-of-tax amount |  | (8,135) | 14,506 | 1,190 | 27,945
Unrealized gains (losses) on other investments: |  |  |  |  |
Net unrealized gains (losses) arising during the period, net-of-tax amount |  | 10 | (4) | 3 | (21)
Net change, net-of-tax amount |  | 10 | (4) | 3 | (21)
Other comprehensive (loss) income |  | $ (8,125) | $ 14,502 | $ 1,193 | $ 27,924
[1] | The pretax amount is reported in net gains on sales of available-for-sale investment securities in the consolidated statements of income.

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