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Other Comprehensive Income (Tables) | 12 Months Ended
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Dec. 31, 2019
Equity [Abstract] |
Summary of Components of Other Comprehensive Income | The tables below provide a summary of the components of OCI for the periods presented.
|  | Year Ended December 31, |
|  | 2019 |  |  | 2018 |  |  | 2017 |
|  | Before-tax |  |  | Tax effect |  |  | After-tax |  |  | 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 |  | $ | 45,486 |  |  | $ | (13,447 | ) |  | $ | 32,039 |  |  | $ | (26,435 | ) |  | $ | 7,815 |  |  | $ | (18,620 | ) |  | $ | (11,336 | ) |  | $ | 4,760 |  |  | $ | (6,576 | )
Amortization of unrealized (gains) losses on securities transferred from available-for-sale to held-to-maturity |  |  | (1,614 | ) |  |  | 477 |  |  |  | (1,137 | ) |  |  | (2,091 | ) |  |  | 619 |  |  |  | (1,472 | ) |  |  | (3,293 | ) |  |  | 1,383 |  |  |  | (1,910 | )
Net realized gain reclassified into earnings (1) |  |  | (5 | ) |  |  | 1 |  |  |  | (4 | ) |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (402 | ) |  |  | 169 |  |  |  | (233 | )
Net change |  | $ | 43,867 |  |  | $ | (12,969 | ) |  | $ | 30,898 |  |  | $ | (28,526 | ) |  | $ | 8,434 |  |  | $ | (20,092 | ) |  | $ | (15,031 | ) |  | $ | 6,312 |  |  | $ | (8,719 | )
| (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=118930883&loc=SL7669686-108580 + Details
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