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Income Taxes Income Taxes (Valuation Allowance) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at January 1, $ 0 $ 75,248 $ 84,629
Balance at December 31, 126 0 75,248
Additions charged to expense [Member]      
Movement in Valuation Allowances and Reserves [Roll Forward]      
Increase (decrease) in valuation allowance from continuing operations 0 0 0
Additions Charged to GW/Purchase Accting [Member]      
Movement in Valuation Allowances and Reserves [Roll Forward]      
Increase (decrease) in valuation allowance from continuing operations 126 0 0
Deductions - other [Member]      
Movement in Valuation Allowances and Reserves [Roll Forward]      
Increase (decrease) in valuation allowance from continuing operations $ 0 $ (75,248) $ (9,381)