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Goodwill and Other Intangible Assets (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 31, 2016
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Goodwill and Other Intangible Assets [Abstract]        
Goodwill   $ 14,916   $ 14,916
Estimated useful lives customer relationship   5 years    
Amortization of intangible assets $ 600   $ 1,100  
Finite-Lived Intangible Assets [Line Items]        
Cost   $ 11,286   11,286
Accumulated Amortization   11,286   11,286
Other Intangible Assets [Member]        
Finite-Lived Intangible Assets [Line Items]        
Cost   11,286   11,286
Accumulated Amortization   $ 11,286   $ 11,286