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Other Comprehensive Income (Tables) | 9 Months Ended
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Sep. 30, 2018
Equity [Abstract] |
Summary of Components of Other Comprehensive Income | The table below provides a summary of the components of other comprehensive income (“OCI”) for the periods presented.
|  | For the Three Months Ended September 30,
|  | 2018 |  | 2017
|  | Before-tax |  | Tax effect |  | After-tax |  | Before-tax |  | Tax effect |  | After-tax
|  | (Dollars in thousands)
Investment securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net change in fair value recorded in accumulated OCI |  | $ | (10,235 | ) |  | $ | 3,025 |  |  | $ | (7,210 | ) |  | $ | 2,083 |  |  | $ | (875 | ) |  | $ | 1,208 |
Amortization of unrealized gains (losses) on securities transferred from available-for-sale to held-to-maturity |  |  | (152 | ) |  |  | 45 |  |  |  | (107 | ) |  |  | (862 | ) |  |  | 362 |  |  |  | (500 | )
Net realized gain reclassified into earnings (1) |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Net change |  | $ | (10,387 | ) |  | $ | 3,070 |  |  | $ | (7,317 | ) |  | $ | 1,221 |  |  | $ | (513 | ) |  | $ | 708 |
|  | For the Nine Months Ended September 30,
|  | 2018 |  | 2017
|  | Before-tax |  | Tax effect |  | After-tax |  | Before-tax |  | Tax effect |  | After-tax
|  | (Dollars in thousands)
Investment securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net change in fair value recorded in accumulated OCI |  | $ | (47,346 | ) |  | $ | 13,997 |  |  | $ | (33,349 | ) |  | $ | 6,128 |  |  | $ | (2,574 | ) |  | $ | 3,554 |
Amortization of unrealized gains (losses) on securities transferred from available-for-sale to held-to-maturity |  |  | (1,809 | ) |  |  | 535 |  |  |  | (1,274 | ) |  |  | (2,841 | ) |  |  | 1,193 |  |  |  | (1,648 | )
Net realized gain reclassified into earnings (1) |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (402 | ) |  |  | 169 |  |  |  | (233 | )
Net change |  | $ | (49,155 | ) |  | $ | 14,532 |  |  | $ | (34,623 | ) |  | $ | 2,885 |  |  | $ | (1,212 | ) |  | $ | 1,673 |
| (1) | Included in other noninterest income.

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 + Details
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