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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Statement of Comprehensive Income [Abstract] |  |  |
Net income | $ 83,019 | $ 32,585 | $ 52,812
Other comprehensive income/(loss), before tax: |  |  |
Foreign currency translation adjustments | (27,383) | 44,162 | (23,967)
Pension/postretirement settlements and curtailments | 1,494 |  | 51
Pension/postretirement plan remeasurement | 851 | 2,955 | (5,498)
Amortization of pension liability adjustments: |  |  |
Prior service credit | (4,454) | (4,453) | (4,450)
Net actuarial loss | 5,175 | 5,439 | 5,102
Payments related to interest rate swaps included in earnings | (146) | 1,490 | 2,400
Derivative valuation adjustment | 3,832 | 325 | 1,297
Income taxes related to items of other comprehensive income/(loss): |  |  |
Pension/postretirement settlements and curtailments | (348) |  | (6)
Pension/postretirement plan remeasurement | (408) | (918) | 1,104
Amortization of pension liability adjustments | (158) | (22) | 27
Payments related to interest rate swaps included in earnings | 37 | (566) | (912)
Derivative valuation adjustment | (979) | (124) | (493)
Comprehensive income | 60,532 | 80,873 | 27,467
Comprehensive income/(loss) attributable to the noncontrolling interest | 111 | (520) | 77
Comprehensive income attributable to the Company | $ 60,421 | $ 81,393 | $ 27,390

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