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Business Segments and Geographic Information (Details 1) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Pre-Tax Income Reconciliation of Segments |  |
Total operating income from segments | $ 64,372 | $ 59,167
Unallocated Amount: |  |
General and Administrative Expenses | (42,586) | (34,061)
Income before income taxes and equity in earnings of affiliates | 41,349 | 34,358
Operating Segments |  |
Pre-Tax Income Reconciliation of Segments |  |
Total operating income from segments | 106,958 | 93,228
Segment Reconciling Items |  |
Unallocated Amount: |  |
General and Administrative Expenses | (42,586) | (34,061)
Net Interest Expense | $ (23,023) | $ (24,809)

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