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Other Comprehensive Income (Tables) | 6 Months Ended
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Jun. 30, 2022
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.
|  | Three Months Ended June 30, |
|  | 2022 |  |  | 2021 |
|  | 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 |  | $ | (142,883 | ) |  | $ | 42,241 |  |  | $ | (100,642 | ) |  | $ | 8,917 |  |  | $ | (2,636 | ) |  | $ | 6,281 |
Amortization of net unrealized losses on securities transferred from available-for-sale to held-to-maturity |  |  | 93 |  |  |  | (28 | ) |  |  | 65 |  |  |  | 20 |  |  |  | (6 | ) |  |  | 14 |
Net change |  | $ | (142,790 | ) |  | $ | 42,213 |  |  | $ | (100,577 | ) |  | $ | 8,937 |  |  | $ | (2,642 | ) |  | $ | 6,295 |
|  | Six Months Ended June 30, |
|  | 2022 |  |  | 2021 |
|  | 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 |  | $ | (344,955 | ) |  | $ | 101,981 |  |  | $ | (242,974 | ) |  | $ | (31,474 | ) |  | $ | 9,305 |  |  | $ | (22,169 | )
Amortization of net unrealized losses on securities transferred from available-for-sale to held-to-maturity |  |  | 147 |  |  |  | (44 | ) |  |  | 103 |  |  |  | 101 |  |  |  | (30 | ) |  |  | 71 |
Net change |  | $ | (344,809 | ) |  | $ | 101,938 |  |  | $ | (242,871 | ) |  | $ | (31,373 | ) |  | $ | 9,275 |  |  | $ | (22,098 | )

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI https://asc.fasb.org/extlink&oid=126968391&loc=SL7669686-108580 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -URI https://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 + Details
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