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Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2016 | Mar. 31, 2015
Statement of Comprehensive Income [Abstract] |  |
Net income | $ 23,623 | $ 21,358
Other comprehensive income: |  |
Unrealized gains on securities available for sale and interest only strips | 15,592 | 5,255
Reclassification adjustments for gains realized in income | 0 | (424)
Tax expense | 6,605 | 2,048
Change in unrealized gains or losses on securities available for sale and interest only strips | 8,987 | 2,783
Total comprehensive income | $ 32,610 | $ 24,141

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