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Accumulated Other Comprehensive Income (Tables) | 12 Months Ended
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Dec. 31, 2022
Accumulated Other Comprehensive Income |
Schedule of amounts in accumulated other comprehensive income (loss) to be recognized over next fiscal year | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2022 |  | 2021
​ | ​ | (In Thousands)
​ | ​ | ​ | ​ | ​ | ​ | ​
Net unrealized gain (loss) on available-for-sale securities | ​ | $ | (62,622) | ​ | $ | 11,834
​ | ​ | ​ | ​ | ​ | ​ | ​
Net unrealized gain on held-to-maturity securities | ​ | ​ | 118 | ​ | ​ | —
​ | ​ | ​ | ​ | ​ | ​ | ​
Net unrealized gain (loss) on active derivatives used for cash flow hedges | ​ | ​ | (31,277) | ​ | ​ | —
​ | ​ | ​ | ​ | ​ | ​ | ​
Net unrealized gain on terminated derivatives used for cash flow hedges | ​ |  | 22,478 | ​ |  | 30,601
​ | ​ |  | (71,303) | ​ |  | 42,435
​ | ​ | ​ | ​ | ​ | ​ | ​
Tax effect | ​ |  | 17,948 | ​ |  | (9,676)
​ | ​ | ​ | ​ | ​ | ​ | ​
Net-of-tax amount | ​ | $ | (53,355) | ​ | $ | 32,759
​
Schedule of amounts reclassified from accumulated other comprehensive income | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​
​ |  | Amounts Reclassified |  | ​
​ | ​ | from AOCI | ​ | Affected Line Item in the
​ |  | 2022 |  | 2021 |  | 2020 |  | Statements of Income
​ | ​ | (In Thousands) | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unrealized gains/(losses) on available-for-sale securities | ​ | $ | (130) | ​ | $ | — | ​ | $ | 78 |  | Net realized gains (losses) on available-for-sale securities (total reclassified amount before tax)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Change in fair value of cash flow hedge | ​ | ​ | 8,123 | ​ | ​ | 8,123 | ​ | ​ | 6,764 | ​ | Amortization of realized gain on termination of cash flow hedge (total reclassification amount before tax)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Income taxes | ​ |  | (1,820) | ​ |  | (1,852) | ​ |  | (1,559) |  | Tax (expense) benefit
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total reclassifications out of AOCI | ​ | $ | 6,173 | ​ | $ | 6,271 | ​ | $ | 5,283 |  |

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- Definition Tabular disclosure of the amounts related to pension plans and/or other employee benefit plans in accumulated other comprehensive income (loss) expected to be recognized as components of net periodic benefit cost over the next fiscal year, including the net gain (loss), net prior service cost or credit, and net transition asset or obligation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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