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Business Segments and Geographic Information - Schedule of Pre-Tax Income Reconciliation of Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Pre-Tax Income Reconciliation of Segments |  |  |  |
Operating income from segments | $ 111,106 | $ 126,647 | $ 330,530 | $ 376,294
Unallocated amounts: |  |  |  |
General and Administrative Expenses | (46,644) | (48,488) | (145,969) | (142,183)
Net interest expense | (24,389) | (29,959) | (78,493) | (92,730)
Gain (loss) on extinguishment of debt | 1,472 | 594 | 3,035 | (5,147)
Income before income taxes and equity in earnings of affiliates | $ 41,545 | $ 48,794 | $ 109,103 | $ 136,234

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