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Equity Compensation Plans and Share-Based Compensation Narrative (Details)
$ in Thousands
12 Months Ended
Sep. 01, 2016
shares
Dec. 31, 2016
USD ($)
shares
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award, Options and Warrants, Additional Disclosures [Abstract]        
Options and warrants outstanding, intrinsic value   $ 990    
Options and warrants exercisable, intrinsic value   $ 350    
Options and warrants outstanding, weighted average remaining contractual term (years)   3 years 11 months 2 days    
Options and warrants exercises in period, total intrinsic value   $ 0 $ 14,609 $ 11,858
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized [Abstract]        
Shares issued in period | shares 83,000 40,000    
Total compensation cost not yet recognized, nonvested stock options   $ 241    
Stock Options and Warrants | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period   10 years    
Stock options        
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized [Abstract]        
Weighted-average period of recognition (years)   1 year 7 months 7 days    
Nonvested “restricted” stock        
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized [Abstract]        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period   6 years    
Total intrinsic value for nonvested common stock awards vested during period   $ 4,860 $ 245 $ 2,006
Total intrinsic value for nonvested common stock awards outstanding   $ 1,410    
Weighted-average period of recognition (years)   2 years    
Total compensation cost not yet recognized, nonvested common stock awards   $ 1,378    
Nonvested “restricted” stock | Measurement period beginning 2014 through 2018        
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized [Abstract]        
Shares issued in period | shares   40,000    
Nonvested stock, number of annual performance measurement periods   4    
Prior to merger [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares available for grant | shares   977,000    
After merger [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares available for grant | shares   2,052,000