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Other Comprehensive Income (Tables) | 6 Months Ended
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Jun. 30, 2019
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 June 30, |
|  | 2019 |  |  | 2018 |
|  | 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 |  | $ | 19,564 |  |  | $ | (5,784 | ) |  | $ | 13,780 |  |  | $ | (5,773 | ) |  | $ | 1,707 |  |  | $ | (4,066 | )
Amortization of unrealized losses on securities transferred from available-for-sale to held-to-maturity |  |  | (78 | ) |  |  | 23 |  |  |  | (55 | ) |  |  | (825 | ) |  |  | 244 |  |  |  | (581 | )
Net change |  | $ | 19,486 |  |  | $ | (5,761 | ) |  | $ | 13,725 |  |  | $ | (6,598 | ) |  | $ | 1,951 |  |  | $ | (4,647 | )
|  | For the Six Months Ended June 30, |
|  | 2019 |  |  | 2018 |
|  | 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 |  | $ | 38,914 |  |  | $ | (11,504 | ) |  | $ | 27,410 |  |  | $ | (37,111 | ) |  | $ | 10,972 |  |  | $ | (26,139 | )
Amortization of unrealized losses on securities transferred from available-for-sale to held-to-maturity |  |  | (1,201 | ) |  |  | 355 |  |  |  | (846 | ) |  |  | (1,657 | ) |  |  | 490 |  |  |  | (1,167 | )
Net change |  | $ | 37,713 |  |  | $ | (11,149 | ) |  | $ | 26,564 |  |  | $ | (38,768 | ) |  | $ | 11,462 |  |  | $ | (27,306 | )

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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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