XML 74 R47.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Accumulated other comprehensive loss (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2021
Equity [Abstract] |
Accumulated comprehensive loss | The after-tax changes in the components of accumulated other comprehensive loss were as follows:
| Net Unrealized Loss on Derivative Instruments Qualifying as Hedges | Post- retirement Liability Adjustment | Net Unrealized Gain (Loss) on Available- for-sale Investments | Total Accumulated Other Comprehensive Loss
| (In thousands)
At December 31, 2019 | $ | (1,430) |  | $ | (40,734) |  | $ | 62 |  | $ | (42,102) |
Other comprehensive loss before reclassifications | — |  | (8,395) |  | (1) |  | (8,396) |
Amounts reclassified from accumulated other comprehensive loss | 446 |  | 1,922 |  | 52 |  | 2,420 |
Net current-period other comprehensive income (loss) | 446 |  | (6,473) |  | 51 |  | (5,976) |
At December 31, 2020 | (984) |  | (47,207) |  | 113 |  | (48,078) |
Other comprehensive income (loss) before reclassifications | — |  | 4,876 |  | (252) |  | 4,624 |
Amounts reclassified from accumulated other comprehensive loss | 446 |  | 1,870 |  | 134 |  | 2,450 |
Net current-period other comprehensive income (loss) | 446 |  | 6,746 |  | (118) |  | 7,074 |
At December 31, 2021 | $ | (538) |  | $ | (40,461) |  | $ | (5) |  | $ | (41,004) |
Reclassification out of accumulated other comprehensive loss | 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 for the years ended December 31 were as follows:
| 2021 | 2020 | Location on Consolidated Statements of Income
| (In thousands) |
Reclassification adjustment for loss on derivative instruments included in net income | $ | (591) |  | $ | (591) |  | Interest expense
| 145 |  | 145 |  | Income taxes
| (446) |  | (446) |  |
Amortization of postretirement liability losses included in net periodic benefit cost | (2,485) |  | (2,552) |  | Other income
| 615 |  | 630 |  | Income taxes
| (1,870) |  | (1,922) |  |
Reclassification adjustment for loss on available-for-sale investments included in net income | (170) |  | (66) |  | Other income
| 36 |  | 14 |  | Income taxes
| (134) |  | (52) |  |
Total reclassifications | $ | (2,450) |  | $ | (2,420) |  |

X
- References No definition available. + Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss). + References No definition available. + Details
Name: | us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration