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Accumulated Other Comprehensive Income (Tables) | 9 Months Ended
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Sep. 30, 2022
Accumulated Other Comprehensive Income (Loss) [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] | The following table shows changes in accumulated other comprehensive income (loss) by component for the periods indicated:
|  | Unrealized Gains and Losses on Available for Sale Securities (1) |  | Unrealized Gains and Losses on Pension Plan Liability (1) |  | Unrealized Gains and Losses on Hedging Instruments (1) |  | Total (1)
Three Months Ended September 30, 2022 |  | (in thousands)
Beginning balance |  | $ | (392,870) |  |  | $ | (4,611) |  |  | $ | 12,866 |  |  | $ | (384,615) |
Other comprehensive loss before reclassifications |  | (170,224) |  |  | — |  |  | — |  |  | (170,224) |
Amounts reclassified from accumulated other comprehensive loss (2) |  | (2,086) |  |  | 100 |  |  | (2,019) |  |  | (4,005) |
Net current-period other comprehensive income (loss) |  | (172,310) |  |  | 100 |  |  | (2,019) |  |  | (174,229) |
Ending balance |  | $ | (565,180) |  |  | $ | (4,511) |  |  | $ | 10,847 |  |  | $ | (558,844) |
Three Months Ended September 30, 2021 |  |  |  |  |  |  |  |
Beginning balance |  | $ | 81,833 |  |  | $ | (5,603) |  |  | $ | 20,879 |  |  | $ | 97,109 |
Other comprehensive loss before reclassifications |  | (22,022) |  |  | — |  |  | — |  |  | (22,022) |
Amounts reclassified from accumulated other comprehensive income (2) |  | (465) |  |  | 114 |  |  | (2,019) |  |  | (2,370) |
Net current-period other comprehensive income (loss) |  | (22,487) |  |  | 114 |  |  | (2,019) |  |  | (24,392) |
Ending balance |  | $ | 59,346 |  |  | $ | (5,489) |  |  | $ | 18,860 |  |  | $ | 72,717 |
Nine Months Ended September 30, 2022 |  |  |  |  |  |  |  |
Beginning balance |  | $ | 23,134 |  |  | $ | (4,812) |  |  | $ | 16,840 |  |  | $ | 35,162 |
Other comprehensive loss before reclassifications |  | (583,072) |  |  | — |  |  | — |  |  | (583,072) |
Amounts reclassified from accumulated other comprehensive income (2) |  | (5,242) |  |  | 301 |  |  | (5,993) |  |  | (10,934) |
Net current-period other comprehensive income (loss) |  | (588,314) |  |  | 301 |  |  | (5,993) |  |  | (594,006) |
Ending balance |  | $ | (565,180) |  |  | $ | (4,511) |  |  | $ | 10,847 |  |  | $ | (558,844) |
Nine Months Ended September 30, 2021 |  |  |  |  |  |  |  |
Beginning balance |  | $ | 163,174 |  |  | $ | (5,833) |  |  | $ | 24,854 |  |  | $ | 182,195 |
Other comprehensive loss before reclassifications |  | (102,777) |  |  | — |  |  | — |  |  | (102,777) |
Amounts reclassified from accumulated other comprehensive income (2) |  | (1,051) |  |  | 344 |  |  | (5,994) |  |  | (6,701) |
Net current-period other comprehensive income (loss) |  | (103,828) |  |  | 344 |  |  | (5,994) |  |  | (109,478) |
Ending balance |  | $ | 59,346 |  |  | $ | (5,489) |  |  | $ | 18,860 |  |  | $ | 72,717 |
__________ (1) All amounts are net of tax. Amounts in parentheses indicate debits. (2) See following table for details about these reclassifications.
Schedule of reclassifications from accumulated other comprehensive income [Table Text Block] | The following table shows details regarding the reclassifications from accumulated other comprehensive income (loss) for the periods indicated:
|  | Amount Reclassified from Accumulated Other Comprehensive Income (Loss) |  |
|  | Three Months Ended September 30, |  | Nine Months Ended September 30, |  | Affected line Item in the Consolidated
|  | 2022 |  | 2021 |  | 2022 |  | 2021 |  | Statement of Income
|  | (in thousands) |  |
Unrealized gains on available for sale debt securities |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 314 |  |  | Investment securities gains, net
Amortization of unrealized gains related to securities transfer |  | 2,718 |  |  | 606 |  |  | 6,830 |  |  | 1,056 |  |  | Taxable securities
|  | 2,718 |  |  | 606 |  |  | 6,830 |  |  | 1,370 |  |  | Total before tax
|  | (632) |  |  | (141) |  |  | (1,588) |  |  | (319) |  |  | Income tax provision
|  | $ | 2,086 |  |  | $ | 465 |  |  | $ | 5,242 |  |  | $ | 1,051 |  |  | Net of tax
Amortization of pension plan liability actuarial losses |  | $ | (130) |  |  | $ | (149) |  |  | $ | (392) |  |  | $ | (448) |  |  | Compensation and employee benefits
|  | (130) |  |  | (149) |  |  | (392) |  |  | (448) |  |  | Total before tax
|  | 30 |  |  | 35 |  |  | 91 |  |  | 104 |  |  | Income tax provision
|  | $ | (100) |  |  | $ | (114) |  |  | $ | (301) |  |  | $ | (344) |  |  | Net of tax
Unrealized gains from hedging instruments |  | $ | 2,631 |  |  | $ | 2,631 |  |  | $ | 7,809 |  |  | $ | 7,809 |  |  | Loans
|  | 2,631 |  |  | 2,631 |  |  | 7,809 |  |  | 7,809 |  |  | Total before tax
|  | (612) |  |  | (612) |  |  | (1,816) |  |  | (1,815) |  |  | Income tax provision
|  | $ | 2,019 |  |  | $ | 2,019 |  |  | $ | 5,993 |  |  | $ | 5,994 |  |  | Net of tax

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- Definition Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss). + References No definition available. + Details
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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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