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Accumulated Other Comprehensive Income (Loss) | 12 Months Ended
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Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss) |
Accumulated Other Comprehensive Income (Loss) | 22. Accumulated Other Comprehensive Income (Loss): The components of accumulated other comprehensive income (loss) included in stockholders’ equity at December 31, 2021 and 2020 are as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | December 31, 2021 |  | ​ | December 31, 2020 |
Net unrealized gain (loss) on investment securities available-for-sale | ​ | $ | (1,791) | ​ | $ | 9,696 | ​
Income tax expense (benefit) | ​ |  | (376) | ​ |  | 2,036 | ​
Net of income taxes | ​ |  | (1,415) | ​ |  | 7,660 | ​
Benefit plan adjustments | ​ |  | (5,868) | ​ |  | (7,977) | ​
Income tax benefit | ​ |  | (1,232) | ​ |  | (1,675) | ​
Net of income taxes | ​ |  | (4,636) | ​ |  | (6,302) | ​
Derivative adjustments | ​ |  | 680 | ​ |  | 1,002 | ​
Income tax | ​ |  | 143 | ​ |  | 211 | ​
Net of income taxes | ​ |  | 537 | ​ |  | 791 | ​
Accumulated other comprehensive income (loss) | ​ | $ | (5,514) | ​ | $ | 2,149 | ​
​ Other comprehensive income (loss) and related tax effects for the years ended December 31, 2021, 2020 and 2019 are as follows:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Year Ended December 31, |  | 2021 |  | 2020 | ​ | 2019 | ​
Unrealized gain (loss) on investment securities available-for-sale | ​ | $ | (11,487) | ​ | $ | 8,779 | ​ | $ | 5,109 | ​
Net gain on the sale of investment securities available-for-sale (1) | ​ | ​ | ​ | ​ | ​ | (918) | ​ | ​ | (23) | ​
Other comprehensive income on available-for-sale debt securities | ​ | ​ | (11,487) | ​ | ​ | 7,861 | ​ | ​ | 5,086 | ​
Benefit plans: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Amortization of actuarial loss (2) | ​ | ​ | 301 | ​ | ​ | 218 | ​ | ​ | 227 | ​
Actuarial gain (loss) | ​ | ​ | 1,808 | ​ | ​ | (1,616) | ​ | ​ | 412 | ​
Net change in benefit plan liabilities | ​ |  | 2,109 | ​ |  | (1,398) | ​ |  | 639 | ​
Net change in derivatives | ​ | ​ | (322) | ​ | ​ | 315 | ​ | ​ | 441 | ​
Other comprehensive loss before taxes | ​ | ​ | (9,700) | ​ | ​ | 6,778 | ​ |  | 6,166 | ​
Income tax (benefit) | ​ |  | (2,037) | ​ |  | 1,424 | ​ |  | 1,295 | ​
Other comprehensive income (loss) | ​ | $ | (7,663) | ​ | $ | 5,354 | ​ | $ | 4,871 | ​
​
| (1) | Represents amounts reclassified out of accumulated comprehensive income (loss) and included in gains on sale of investment securities on the consolidated statements of income and comprehensive income.
| (2) | Represents amounts reclassified out of accumulated comprehensive income (loss) and included in the computation of net periodic pension expense. Refer to Note 17 included in these consolidated financial statements.

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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=123367319&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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