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Fair Value - Significant Unobservable Inputs Used in Fair Value Measurements (Details) - Level 3
$ in Thousands
12 Months Ended
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Fair Value, Measurements, Nonrecurring | Impaired loans    
Significant unobservable inputs used in the fair value measurements    
Assets $ 1,567 $ 1,250
Fair Value, Measurements, Recurring | Other liabilities - derivative    
Significant unobservable inputs used in the fair value measurements    
Liabilities $ (7,460)  
Fair Value, Measurements, Recurring | Other liabilities - derivative | Discounted cash flow | Weighted Average    
Significant unobservable inputs used in the fair value measurements    
Expected Conversion Factor 1.6483  
Expected Term 4 years  
Growth Rate (as a percent) 15.00%