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Accumulated Other Comprehensive Income (Loss) | 6 Months Ended
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Jun. 30, 2021
Equity [Abstract] |
Accumulated Other Comprehensive Income (Loss) | Accumulated Other Comprehensive Income The following table summarizes the changes in AOCI by component for the:
| Three Months Ended June 30
| 2021 |  | 2020
| Unrealized Gains (Losses) on AFS Securities |  | Unrealized Gains (Losses) on Derivative Instruments |  | Defined Benefit Pension Plan |  | Total |  | Unrealized Gains (Losses) on AFS Securities |  | Unrealized Gains (Losses) on Derivative Instruments |  | Defined Benefit Pension Plan |  | Total
Balance, April 1 | $ | 7,682 |  |  | $ | (21) |  |  | $ | (2,745) |  |  | $ | 4,916 |  |  | $ | 9,459 |  |  | $ | (54) |  |  | $ | (2,695) |  |  | $ | 6,710 |
OCI before reclassifications | 988 |  |  | 27 |  |  | — |  |  | 1,015 |  |  | 2,059 |  |  | (29) |  |  | — |  |  | 2,030 |
Tax effect | (201) |  |  | (6) |  |  | — |  |  | (207) |  |  | (379) |  |  | 6 |  |  | — |  |  | (373) |
OCI, net of tax | 787 |  |  | 21 |  |  | — |  |  | 808 |  |  | 1,680 |  |  | (23) |  |  | — |  |  | 1,657 |
Balance, June 30 | $ | 8,469 |  |  | $ | — |  |  | $ | (2,745) |  |  | $ | 5,724 |  |  | $ | 11,139 |  |  | $ | (77) |  |  | $ | (2,695) |  |  | $ | 8,367 |
| Six Months Ended June 30
| 2021 |  | 2020
| Unrealized Gains (Losses) on AFS Securities |  | Unrealized Gains (Losses) on Derivative Instruments |  | Defined Benefit Pension Plan |  | Total |  | Unrealized Gains (Losses) on AFS Securities |  | Unrealized Gains (Losses) on Derivative Instruments |  | Defined Benefit Pension Plan |  | Total
Balance, January 1 | $ | 10,485 |  |  | $ | (42) |  |  | $ | (2,745) |  |  | $ | 7,698 |  |  | $ | 4,612 |  |  | $ | 54 |  |  | $ | (2,695) |  |  | $ | 1,971 |
OCI before reclassifications | (2,557) |  |  | 53 |  |  | — |  |  | (2,504) |  |  | 8,370 |  |  | (165) |  |  | — |  |  | 8,205 |
Amounts reclassified from AOCI | — |  |  | — |  |  | — |  |  | — |  |  | (71) |  |  | — |  |  | — |  |  | (71) |
Subtotal | (2,557) |  |  | 53 |  |  | — |  |  | (2,504) |  |  | 8,299 |  |  | (165) |  |  | — |  |  | 8,134 |
Tax effect | 541 |  |  | (11) |  |  | — |  |  | 530 |  |  | (1,772) |  |  | 34 |  |  | — |  |  | (1,738) |
OCI, net of tax | (2,016) |  |  | 42 |  |  | — |  |  | (1,974) |  |  | 6,527 |  |  | (131) |  |  | — |  |  | 6,396 |
Balance, June 30 | $ | 8,469 |  |  | $ | — |  |  | $ | (2,745) |  |  | $ | 5,724 |  |  | $ | 11,139 |  |  | $ | (77) |  |  | $ | (2,695) |  |  | $ | 8,367 |
Included in OCI for the three and six-month periods ended June 30, 2021 and 2020 are changes in unrealized gains and losses related to auction rate money market preferred stocks. These investments, for federal income tax purposes, have no deferred federal income taxes related to unrealized gains or losses given the nature of the investments. A summary of the components of unrealized gains on AFS securities included in OCI follows for the:
| Three Months Ended June 30
| 2021 |  | 2020
| Auction Rate Money Market Preferred Stocks |  | All Other AFS Securities |  | Total |  | Auction Rate Money Market Preferred Stocks |  | All Other AFS Securities |  | Total
Unrealized gains (losses) arising during the period | $ | 36 |  |  | $ | 952 |  |  | $ | 988 |  |  | $ | 253 |  |  | $ | 1,806 |  |  | $ | 2,059 |
Tax effect | — |  |  | (201) |  |  | (201) |  |  | — |  |  | (379) |  |  | (379) |
Unrealized gains (losses), net of tax | $ | 36 |  |  | $ | 751 |  |  | $ | 787 |  |  | $ | 253 |  |  | $ | 1,427 |  |  | $ | 1,680 |
| Six Months Ended June 30
| 2021 |  | 2020
| Auction Rate Money Market Preferred Stocks |  | All Other AFS Securities |  | Total |  | Auction Rate Money Market Preferred Stocks |  | All Other AFS Securities |  | Total
Unrealized gains (losses) arising during the period | $ | 23 |  |  | $ | (2,580) |  |  | $ | (2,557) |  |  | $ | (140) |  |  | $ | 8,510 |  |  | $ | 8,370 |
Reclassification adjustment for net (gains) losses included in net income | — |  |  | — |  |  | — |  |  | — |  |  | (71) |  |  | (71) |
Net unrealized gains (losses) | 23 |  |  | (2,580) |  |  | (2,557) |  |  | (140) |  |  | 8,439 |  |  | 8,299 |
Tax effect | — |  |  | 541 |  |  | 541 |  |  | — |  |  | (1,772) |  |  | (1,772) |
Unrealized gains (losses), net of tax | $ | 23 |  |  | $ | (2,039) |  |  | $ | (2,016) |  |  | $ | (140) |  |  | $ | 6,667 |  |  | $ | 6,527 |

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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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