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Accumulated other comprehensive loss | 3 Months Ended
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Mar. 31, 2022
Equity [Abstract] |
Accumulated other comprehensive loss | Accumulated other comprehensive loss The after-tax changes in the components of accumulated other comprehensive loss were as follows:
| Net Unrealized Gain (Loss) on Derivative Instruments Qualifying as Hedges | Postretirement Liability Adjustment |  | Net Unrealized Gain (Loss) on Available-for-sale Investments | Total Accumulated Other Comprehensive Loss
| (In thousands)
At December 31, 2021 | $ | (538) |  | $ | (40,461) |  |  | $ | (5) |  | $ | (41,004) |
Other comprehensive loss before reclassifications | — |  | — |  |  | (320) |  | (320) |
Amounts reclassified from accumulated other comprehensive loss | 112 |  | 445 |  |  | 32 |  | 589 |
Net current-period other comprehensive income (loss) | 112 |  | 445 |  |  | (288) |  | 269 |
At March 31, 2022 | $ | (426) |  | $ | (40,016) |  |  | $ | (293) |  | $ | (40,735) |
| Net Unrealized Gain (Loss) on Derivative Instruments Qualifying as Hedges | Postretirement Liability Adjustment |  | Net Unrealized Gain (Loss) on Available-for-sale Investments | Total Accumulated Other Comprehensive Loss
| (In thousands)
At December 31, 2020 | $ | (984) |  | $ | (47,207) |  |  | $ | 113 |  | $ | (48,078) |
Other comprehensive loss before reclassifications | — |  | — |  |  | (44) |  | (44) |
Amounts reclassified from accumulated other comprehensive loss | 111 |  | 466 |  |  | 35 |  | 612 |
Net current-period other comprehensive income (loss) | 111 |  | 466 |  |  | (9) |  | 568 |
At March 31, 2021 | $ | (873) |  | $ | (46,741) |  |  | $ | 104 |  | $ | (47,510) |
The following amounts were reclassified out of accumulated other comprehensive loss into net income. The amounts presented in parenthesis indicate a decrease to net income on the Consolidated Statements of Income. The reclassifications were as follows:
| Three Months Ended |  | Location on Consolidated Statements of Income
| March 31, |
| 2022 | 2021 |  |
| (In thousands) |
Reclassification adjustment for loss on derivative instruments included in net income | $ | (148) |  | $ | (148) |  |  |  | Interest expense
| 36 |  | 37 |  |  |  | Income taxes
| (112) |  | (111) |  |  |  |
Amortization of postretirement liability losses included in net periodic benefit credit | (609) |  | (617) |  |  |  | Other income
| 164 |  | 151 |  |  |  | Income taxes
| (445) |  | (466) |  |  |  |
Reclassification adjustment on available-for-sale investments included in net income | (40) |  | (44) |  |  |  | Other income
| 8 |  | 9 |  |  |  | Income taxes
| (32) |  | (35) |  |  |  |
Total reclassifications | $ | (589) |  | $ | (612) |  |  |  |

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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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