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Goodwill and Intangible Assets Amortization (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Aggregate Amortization Expense [Abstract]        
Amortization expense $ 1,533 $ 2,674 $ 3,060 $ 5,346
Summary of the estimated remaining annual amortization expense        
2016 3,068   3,068  
2017 4,111   4,111  
2018 0   0  
2019 0   0  
2020 $ 0   $ 0