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Income Taxes (Reconciliation of Unrecognized Tax Benefits) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Income Tax Disclosure [Abstract]    
Unrecognized tax benefits, beginning balance $ 7,717 $ 8,583
Gross increases - tax positions in prior period 236 229
Gross decreases - tax position in prior period (217) 0
Gross increases - current-period tax positions 473 769
Settlements (2,154) (1,864)
Unrecognized tax benefits, ending balance $ 6,055 $ 7,717