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Income Taxes (Unrecognized Tax Benefits) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Unrecognized Tax Benefits [Roll Forward]      
Balance as of January 1 $ 581 $ 1,689 $ 1,587
Increases for positions taken in prior periods 100 45 70
Increases for positions taken in current periods 0 0 1,132
Decreases in unrecorded tax positions related to settlement with the taxing authorities 0 (1,073) (1,010)
Decreases in unrecorded tax positions related to lapse of statute of limitations (65) (80) (90)
Balance as of December 31 $ 616 $ 581 $ 1,689