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Income Taxes Income Taxes - Narrative (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Income Tax Disclosure [Abstract]        
Income Tax Expense (Benefit) $ 10,420 $ 4,960 $ 27,612 $ 9,482