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Components of Accumulated Other Comprehensive Income (Tables) | 12 Months Ended
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Dec. 31, 2023
Equity [Abstract] |
Changes in Accumulated Other Comprehensive Income | The following tables detail the changes in our Accumulated Other Comprehensive Income (AOCI) on our Consolidated Balance Sheets for the years ended December 31, 2023 and 2022, net of tax.
(in thousands) |  |  | 2023 |  |  | 2022 |
Pension and Other Postretirement Employee Benefits |  |  |  |  |  |  |
Balance at beginning of period |  |  | $ | (28,494 | ) |  | $ | (51,369 | )
Unrecognized gains (losses) arising in AOCI during the period: |  |  |  |  |  |  |
Gross |  |  |  | 13,744 |  |  |  | 10,825 |
Tax effect |  |  |  | (3,436 | ) |  |  | (2,760 | )
Reclassifications from AOCI to earnings: |  |  |  |  |  |  |
Pension settlement 1 |  |  |  | — |  |  |  | 14,165 |
Other 1 |  |  |  | (703 | ) |  |  | 5,715 |
Tax effect |  |  |  | 175 |  |  |  | (5,070 | )
Net of tax amount |  |  |  | 9,780 |  |  |  | 22,875 |
Other reclassifications |  |  |  | (211 | ) |  |  | — |
Balance at end of period |  |  |  | (18,925 | ) |  |  | (28,494 | )
Cash Flow Hedges |  |  |  |  |  |  |
Balance at beginning of period |  |  |  | 126,146 |  |  |  | 8,131 |
Unrecognized gains arising in AOCI during the period: |  |  |  |  |  |  |
Gross |  |  |  | 14,225 |  |  |  | 117,761 |
Tax effect |  |  |  | 446 |  |  |  | (871 | )
Reclassifications from AOCI to earnings: |  |  |  |  |  |  |
Gross 2 |  |  |  | (19,354 | ) |  |  | 1,241 |
Tax effect |  |  |  | 449 |  |  |  | (116 | )
Net of tax amount |  |  |  | (4,234 | ) |  |  | 118,015 |
Other reclassifications |  |  |  | 45 |  |  |  | — |
Balance at end of period |  |  |  | 121,957 |  |  |  | 126,146 |
Accumulated other comprehensive income, end of period |  |  | $ | 103,032 |  |  | $ | 97,652 |
1. Included in the computation of net periodic pension costs. 2. Included in Interest expense, net on the Consolidated Statements of Operations.

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-14A Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481674/830-30-50-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481694/830-30-45-20 + Details
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