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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2016 | Mar. 31, 2015
Statement Of Income And Comprehensive Income [Abstract] |  |
Net income | $ 5,006 | $ 14,044
Unrealized gains (losses) on securities: |  |
Unrealized holding gains (losses) arising during the period | 1,456 | 988
Reclassification of amount realized through sale of securities | (5) |
Tax effect | (540) | (368)
Total other comprehensive income (loss) | 911 | 620
Comprehensive income | $ 5,917 | $ 14,664

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