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Accumulated Other Comprehensive Income | 9 Months Ended
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Sep. 30, 2020
Equity [Abstract] |
Accumulated Other Comprehensive Income | Accumulated Other Comprehensive Income The following table presents changes in other comprehensive income:
| Before-Tax Amount |  | Tax Effect |  | Net of Tax Amount
Three months ended September 30, 2020 | (in thousands)
Unrealized gain on securities | $ | 5,565 |  |  | $ | (1,232) |  |  | $ | 4,333 |
Reclassification adjustment for securities gains included in net income (1) | (2) |  |  | 1 |  |  | (1) |
Amortization of net unrealized losses on AFS securities transferred to HTM (2) | 1,192 |  |  | (264) |  |  | 928 |
Amortization of net unrecognized pension and postretirement items (3) | 329 |  |  | (73) |  |  | 255 |
Total Other Comprehensive Income | $ | 7,083 |  |  | $ | (1,568) |  |  | $ | 5,515 |
Three months ended September 30, 2019 |  |  |  |  |
Unrealized gain on securities (4) | $ | 23,150 |  |  | $ | (5,121) |  |  | $ | 18,029 |
Reclassification adjustment for securities gains included in net income (1) | (4,492) |  |  | 994 |  |  | (3,498) |
Amortization of net unrealized losses on AFS securities transferred to HTM (2) | 4,405 |  |  | (974) |  |  | 3,430 |
Amortization of net unrecognized pension and postretirement items (3) | 357 |  |  | (80) |  |  | 277 |
Total Other Comprehensive Income | $ | 23,419 |  |  | $ | (5,181) |  |  | $ | 18,238 |
Nine months ended September 30, 2020 |  |  |  |  |
Unrealized gain on securities | $ | 72,146 |  |  | $ | (15,960) |  |  | $ | 56,186 |
Reclassification adjustment for securities gains included in net income (1) | (3,053) |  |  | 676 |  |  | (2,377) |
Amortization of net unrealized losses on AFS securities transferred to HTM (2) | 3,232 |  |  | (715) |  |  | 2,517 |
Amortization of net unrecognized pension and postretirement items (3) | 984 |  |  | (219) |  |  | 765 |
Total Other Comprehensive Income | $ | 73,309 |  |  | $ | (16,218) |  |  | $ | 57,091 |
Nine months ended September 30, 2019 |  |  |  |  |
Unrealized gain on securities (4) | $ | 81,207 |  |  | $ | (17,963) |  |  | $ | 63,244 |
Reclassification adjustment for securities gains included in net income (1) | (4,733) |  |  | 1,047 |  |  | (3,686) |
Amortization of net unrealized losses on AFS securities transferred to HTM (2) | 6,966 |  |  | (1,541) |  |  | 5,425 |
Non-credit related unrealized losses on other-than-temporarily impaired debt securities | (875) |  |  | 193 |  |  | (682) |
Amortization of net unrecognized pension and postretirement items (3) | 1,083 |  |  | (240) |  |  | 843 |
Total Other Comprehensive Income | $ | 83,648 |  |  | $ | (18,504) |  |  | $ | 65,144 |
(1) Amounts reclassified out of accumulated other comprehensive income. Before-tax amounts included in "Investment securities gains, net" on the Consolidated Statements of Income. See Note 3, "Investment Securities," for additional details. (2) Amounts reclassified out of accumulated other comprehensive income. Before-tax amounts included as a reduction to "Interest Income" on the Consolidated Statements of Income. (3) Amounts reclassified out of accumulated other comprehensive income. Before-tax amounts included in "Salaries and employee benefits" on the Consolidated Statements of Income. See Note 12, "Employee Benefit Plans," for additional details. (4) Before-Tax amount includes a $3.7 million reclassification of unrealized loss related to the early adoption of ASU 2019-04. The following table presents changes in each component of accumulated other comprehensive income (loss), net of tax:
| Unrealized Gains (Losses) on Investment Securities |  | Unrealized Non-Credit Gains (Losses) on Other-Than-Temporarily Impaired Debt Securities |  |  |  | Unrecognized Pension and Postretirement Plan Income (Costs) |  | Total
| (in thousands)
Three months ended September 30, 2020 |  |  |  |  |  |  |  |  |
Balance at June 30, 2020 | $ | 65,930 |  |  | $ | — |  |  |  |  | $ | (14,491) |  |  | $ | 51,439 |
Other comprehensive income before reclassifications | 4,333 |  |  | — |  |  |  |  | — |  |  | 4,333 |
Amounts reclassified from accumulated other comprehensive income | (1) |  |  | — |  |  |  |  | 255 |  |  | 254 |
Amortization of net unrealized losses on AFS securities transferred to HTM | 928 |  |  | — |  |  |  |  | — |  |  | 928 |
Balance at September 30, 2020 | $ | 71,190 |  |  | $ | — |  |  |  |  | $ | (14,236) |  |  | $ | 56,954 |
Three months ended September 30, 2019 |  |  |  |  |  |  |  |  |
Balance at June 30, 2019 | $ | 2,368 |  |  | $ | (2) |  |  |  |  | $ | (14,523) |  |  | $ | (12,157) |
Other comprehensive income before reclassifications | 18,029 |  |  | — |  |  |  |  | — |  |  | 18,029 |
Amounts reclassified from accumulated other comprehensive income (loss) | (3,498) |  |  | — |  |  |  |  | 277 |  |  | (3,221) |
Amortization of net unrealized losses on AFS securities transferred to HTM | 3,430 |  |  | — |  |  |  |  | — |  |  | 3,430 |
Balance at September 30, 2019 | $ | 20,329 |  |  | $ | (2) |  |  |  |  | $ | (14,246) |  |  | $ | 6,081 |
Nine months ended September 30, 2020 |  |  |  |  |  |  |  |  |
Balance at December 31, 2019 | $ | 14,864 |  |  | $ | — |  |  |  |  | $ | (15,001) |  |  | $ | (137) |
Other comprehensive income before reclassifications | 56,186 |  |  | — |  |  |  |  | — |  |  | 56,186 |
Amounts reclassified from accumulated other comprehensive income (loss) | (2,377) |  |  | — |  |  |  |  | 765 |  |  | (1,612) |
Amortization of net unrealized losses on AFS securities transferred to HTM | 2,517 |  |  | — |  |  |  |  | — |  |  | 2,517 |
Balance at September 30, 2020 | $ | 71,190 |  |  | $ | — |  |  |  |  | $ | (14,236) |  |  | $ | 56,954 |
Nine months ended September 30, 2019 |  |  |  |  |  |  |  |  |
Balance at December 31, 2018 | $ | (44,654) |  |  | $ | 680 |  |  |  |  | $ | (15,089) |  |  | $ | (59,063) |
Other comprehensive income before reclassifications | 63,244 |  |  | (682) |  |  |  |  | — |  |  | 62,562 |
Amounts reclassified from accumulated other comprehensive income (loss) | (3,686) |  |  | — |  |  |  |  | 843 |  |  | (2,843) |
Amortization of net unrealized losses on AFS securities transferred to HTM | 5,425 |  |  | — |  |  |  |  | — |  |  | 5,425 |
Balance at September 30, 2019 | $ | 20,329 |  |  | $ | (2) |  |  |  |  | $ | (14,246) |  |  | $ | 6,081 |

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -URI http://asc.fasb.org/topic&trid=2134417 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details
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