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Business Segments and Geographic Information (Details 1) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2014 | Mar. 31, 2013
Pre-Tax Income Reconciliation of Segments |  |
Total operating income from segments | $ 77,072 | $ 73,299
Unallocated Amount: |  |
General and Administrative Expenses | (28,502) | (32,040)
Net Interest Expense | (19,920) | (18,157)
Income before income taxes and equity in earnings of affiliates | $ 28,650 | $ 23,102

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