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Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Securities gains (losses) | $ (8) | $ 68
Tax expense (benefit) | 4,519 | 4,686
Net income | 11,277 | 11,602
Unrealized Gains (Losses) on AFS Securities [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Securities gains (losses) | (8) | 68
Tax expense (benefit) | (3) | 24
Net income | $ (5) | $ 44

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- Definition This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27357-111563 + Details
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