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Operations by Business Segment and Geographic Area - Reconciliation to Consolidated Amounts (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Reconciliation of total segment profit to earnings (loss) before taxes |  |  |  |  |  |  |  |  |  |  |
Gain related to a partial sale of a subsidiary |  |  |  |  |  |  |  |  |  |  | $ 68,162
Pension settlement charge |  |  |  |  |  |  |  |  |  |  | (239,896)
Corporate general and administrative expense |  |  |  |  |  |  |  |  | $ (192,187) | $ (191,073) | (168,329)
Interest income (expense), net |  |  |  |  |  |  |  |  | (39,900) | (52,600) | (28,100)
Earnings attributable to noncontrolling interests |  |  |  |  |  |  |  |  | (73,092) | (46,048) | (62,494)
EARNINGS FROM CONTINUING OPERATIONS BEFORE TAXES | $ 151,500 | $ 165,400 | $ (23,900) | $ 93,400 | $ 178,700 | $ (2,700) | $ 181,400 | $ 189,200 | 386,441 | 546,600 | 726,552
Corporate general and administrative expense | Stork Holding B.V. |  |  |  |  |  |  |  |  |  |  |
Reconciliation of total segment profit to earnings (loss) before taxes |  |  |  |  |  |  |  |  |  |  |
Foreign currency exchange gain or (loss) |  |  |  |  |  |  |  |  | 21,000 | 35,000 |
Organizational realignment expenses |  |  |  |  |  |  |  |  | 20,000 | 38,000 |
Transaction and integration costs |  |  |  |  |  |  |  |  |  | 25,000 |
Reportable segments |  |  |  |  |  |  |  |  |  |  |
Reconciliation of total segment profit to earnings (loss) before taxes |  |  |  |  |  |  |  |  |  |  |
Total segment profit |  |  |  |  |  |  |  |  | $ 545,400 | $ 744,300 | $ 1,032,200

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