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Accumulated Other Comprehensive Income (Loss) (Tables) | 12 Months Ended
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Dec. 31, 2021
Equity [Abstract] |
Schedule of Changes in Accumulated Other Comprehensive Loss | The following table shows the changes in accumulated other comprehensive loss for the years ended December 31, 2021, 2020 and 2019:
(in thousands) | Pension and Other Postretirement Benefits |  | Net Unrealized Gain (Losses) on Available-for-Sale Securities |  | Total
Balance, December 31, 2018 | $ | (4,059) |  |  | $ | (85) |  |  | $ | (4,144) |
Other Comprehensive Income (Loss) Before Reclassifications, net of tax | 418 |  |  | 116 |  |  | 534 |
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) | (2,056) |  | (1) | 13 |  | (2) | (2,043) |
Total Other Comprehensive Income (Loss) | (1,638) |  |  | 129 |  |  | (1,509) |
Stranded Tax Transfer | (794) |  |  | 10 |  |  | (784) |
Balance, December 31, 2019 | (6,491) |  |  | 54 |  |  | (6,437) |
Other Comprehensive Income (Loss) Before Reclassifications, net of tax | 418 |  |  | 145 |  |  | 563 |
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) | (2,643) |  | (1) | 10 |  | (2) | (2,633) |
Total Other Comprehensive Income (Loss) | (2,225) |  |  | 155 |  |  | (2,070) |
Balance, December 31, 2020 | (8,716) |  |  | 209 |  |  | (8,507) |
Other Comprehensive Income (Loss) Before Reclassifications, net of tax | 1,638 |  |  | (132) |  |  | 1,506 |
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) | 541 |  | (1) | (64) |  | (2) | 477 |
Total Other Comprehensive Income (Loss) | 2,179 |  |  | (196) |  |  | 1,983 |
Balance, December 31, 2021 | $ | (6,537) |  |  | $ | 13 |  |  | $ | (6,524) |
(1) Included in the computation of net periodic pension and other postretirement benefit costs. See Note 10 for further information.
(2) Included in other income (expense), net on the accompanying consolidated statements of income.

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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 http://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 http://asc.fasb.org/extlink&oid=124509347&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 http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 + Details
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