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Accumulated Other Comprehensive Income (Loss) (Components of AOCI) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Jun. 30, 2023 | Dec. 31, 2022 | Jun. 30, 2022 | Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | $ (620,787) | $ (629,715) | $ (641,972) | $ (559,026) |  |  |  |
Other comprehensive income (loss) before reclassifications (3) | (40,315) | (81,321) | (18,180) | (147,862) |  |  |  |
Amounts reclassified from AOCL | (462) | (1,771) | (1,412) | (5,920) |  |  |  |
Other comprehensive income (loss) | (40,777) | (83,092) | (19,592) | (153,782) |  |  |  |
Ending balance | (661,564) | (712,808) | (661,564) | (712,808) |  |  |  |
Foreign currency translation, taxes | 904 | (3,183) | 1,458 | (23,788) |  |  |  |
As Reported |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |  |  |  |  |  |  |
Ending balance |  | (712,807) |  | (712,807) |  |  |  |
Foreign currency translation items |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | (532,276) | (536,929) | (554,683) | (456,025) |  |  |  |
Other comprehensive income (loss) before reclassifications (3) | (43,012) | (89,282) | (20,605) | (170,187) |  |  |  |
Amounts reclassified from AOCL | 0 | 0 | 0 | 0 |  |  |  |
Other comprehensive income (loss) | (43,012) | (89,282) | (20,605) | (170,187) |  |  |  |
Ending balance | (575,288) | (626,212) | (575,288) | (626,212) |  |  |  |
Foreign currency translation items | As Reported |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |  |  |  |  |  |  |
Ending balance |  | (626,211) |  | (626,211) |  |  |  |
Pension and other post-retirement effects |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | (87,638) | (91,508) | (86,356) | (101,665) |  |  |  |
Other comprehensive income (loss) before reclassifications (3) | 2,697 | 7,961 | 2,425 | 22,325 |  |  |  |
Amounts reclassified from AOCL | (492) | (1,800) | (1,502) | (6,007) |  |  |  |
Other comprehensive income (loss) | 2,205 | 6,161 | 923 | 16,318 |  |  |  |
Ending balance | (85,433) | (85,347) | (85,433) | (85,347) |  |  |  |
Pension and other post-retirement effects | As Reported |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |  |  |  |  |  |  |
Ending balance |  | (85,347) |  | (85,347) |  |  |  |
Cash flow hedging activity |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | (873) | (1,278) | (933) | (1,336) |  |  |  |
Other comprehensive income (loss) before reclassifications (3) | 0 | 0 | 0 | 0 |  |  |  |
Amounts reclassified from AOCL | 30 | 29 | 90 | 87 |  |  |  |
Other comprehensive income (loss) | 30 | 29 | 90 | 87 |  |  |  |
Ending balance | (843) | (1,249) | (843) | (1,249) |  |  |  |
Cash flow hedging activity | As Reported |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |  |  |  |  |  |  |
Ending balance |  | (1,249) |  | (1,249) |  |  |  |
Non- controlling Interests |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |  |  |  |  |  |  |
Other comprehensive income (loss) | (4,811) | (91) | (7,727) | 1,248 |  |  |  |
Accumulated other comprehensive income (loss), foreign currency translation adjustment, net of tax | $ (1,900) | 5,800 | $ (1,900) | 5,800 | $ 2,900 | $ 5,800 | $ 5,900 | $ 4,600
Non- controlling Interests | Currency Swap |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |  |  |  |  |  |  |
Foreign currency translation, taxes |  | $ 21,300 |  | $ 56,300 |  |  |  |

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