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Business Segments and Geographic Information (Details 1) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014
Pre-Tax Income Reconciliation of Segments |  |  |  |
Total operating income from segments | $ 63,031 | $ 63,318 | $ 168,977 | $ 172,777
Unallocated Amount: |  |  |  |
General and Administrative Expenses | (33,742) | (28,287) | (97,764) | (84,937)
Income before income taxes and equity in earnings of affiliates | 38,709 | 42,958 | 98,300 | 112,719
Operating Segments |  |  |  |
Pre-Tax Income Reconciliation of Segments |  |  |  |
Total operating income from segments | 96,773 | 91,605 | 266,741 | 257,714
Segment Reconciling Items |  |  |  |
Unallocated Amount: |  |  |  |
General and Administrative Expenses | (33,742) | (28,287) | (97,764) | (84,937)
Net Interest Expense | $ (24,322) | $ (20,360) | $ (70,677) | $ (60,058)

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