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Income Taxes (Details 2) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Current provision (benefit):      
Federal $ 82 $ (131) $ 3,306
State 73 193 541
Foreign (112) 1,388 104
Total current provision (benefit) 43 1,450 3,951
Deferred provision (benefit):      
Federal (5,222) (4,309) 2,254
State (1,250) (1,699) 227
Foreign (1,148) (2,891) (1,067)
Total deferred provision (benefit) (7,620) (8,899) 1,414
Total provision (benefit) for income taxes $ (7,577) $ (7,449) $ 5,365