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Components of Accumulated Other Comprehensive Income | 9 Months Ended
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Sep. 30, 2023
Equity [Abstract] |
Components of Accumulated Other Comprehensive Income | NO TE 12. COMPONENTS OF ACCUMULATED OTHER COMPREHENSIVE INCOME The following table details changes in amounts included in our Accumulated Other Comprehensive Income (AOCI) by component on our Condensed Consolidated Balance Sheets, net of tax:
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
(in thousands) |  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
Pension and Other Postretirement Employee Benefits |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  | $ | (28,969 | ) |  | $ | (42,974 | ) |  | $ | (28,494 | ) |  | $ | (51,369 | )
Unrecognized gains (losses) arising in AOCI during the period: |  |  |  |  |  |  |  |  |  |  |  |
Gross |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (6,157 | )
Tax effect |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 1,570 |
Reclassifications from AOCI to earnings: |  |  |  |  |  |  |  |  |  |  |  |
Pension settlement 1 |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 14,165 |
Other 1 |  |  | (177 | ) |  |  | 1,228 |  |  |  | (529 | ) |  |  | 4,488 |
Tax effect |  |  | 45 |  |  |  | (314 | ) |  |  | 133 |  |  |  | (4,757 | )
Net of tax amount |  |  | (132 | ) |  |  | 914 |  |  |  | (396 | ) |  |  | 9,309 |
Other reclassifications |  |  | — |  |  |  | — |  |  |  | (211 | ) |  |  | — |
Balance at end of period |  |  | (29,101 | ) |  |  | (42,060 | ) |  |  | (29,101 | ) |  |  | (42,060 | )
Cash Flow Hedges |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  | 126,530 |  |  |  | 93,936 |  |  |  | 126,146 |  |  |  | 8,131 |
Unrecognized gains arising in AOCI during the period: |  |  |  |  |  |  |  |  |  |  |  |
Gross |  |  | 34,334 |  |  |  | 28,802 |  |  |  | 43,207 |  |  |  | 116,229 |
Tax effect |  |  | (727 | ) |  |  | 4,098 |  |  |  | (899 | ) |  |  | (821 | )
Reclassifications from AOCI to earnings: |  |  |  |  |  |  |  |  |  |  |  |
Gross 2 |  |  | (5,266 | ) |  |  | (170 | ) |  |  | (13,829 | ) |  |  | 3,274 |
Tax effect |  |  | 123 |  |  |  | (5 | ) |  |  | 324 |  |  |  | (152 | )
Net of tax amount |  |  | 28,464 |  |  |  | 32,725 |  |  |  | 28,803 |  |  |  | 118,530 |
Other reclassifications |  |  | — |  |  |  | — |  |  |  | 45 |  |  |  | — |
Balance at end of period |  |  | 154,994 |  |  |  | 126,661 |  |  |  | 154,994 |  |  |  | 126,661 |
Accumulated other comprehensive income, end of period |  | $ | 125,893 |  |  | $ | 84,601 |  |  | $ | 125,893 |  |  | $ | 84,601 |
1 Included in the computation of net periodic pension costs. 2 Included in Interest expense, net on the Condensed Consolidated Statement of Operations. See Note 11: Pension and Other Postretirement Employee Benefits and Note 6: Derivative Instruments for additional information.

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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://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483586/944-220-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//220/tableOfContent + Details
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