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Stock Compensation Restricted Stock Activity (Details) - Restricted Stock [Member]
$ in Thousands
1 Months Ended 12 Months Ended
Oct. 10, 2015
USD ($)
shares
Jul. 23, 2014
USD ($)
shares
Oct. 31, 2013
USD ($)
shares
May. 31, 2013
USD ($)
directors
shares
Nov. 30, 2011
USD ($)
directors
shares
Jun. 30, 2010
USD ($)
shares
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Total compensation cost not yet recognized             $ 44,632 $ 20,181  
Total compensation cost not yet recognized, period for recognition             3 years 2 months 9 days    
Restricted Stock Granted During May 2013 [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Other than options, grants in period (shares) | shares       11,576          
Share-based compensation expense             $ 272 271 $ 161
Number of directors (in directors) | directors       5          
Share-based compensation over vesting period       $ 815          
Award vesting period       3 years          
Restricted Stock Granted During June 2010 [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Other than options, grants in period (shares) | shares           13,401      
Share-based compensation over vesting period           $ 749      
Number of directors resigned (in directors) | directors         1        
Forfeited in the period (shares) | shares         8,509        
Award vesting period         3 years        
Restricted Stock Granted During November 2011 [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Other than options, grants in period (shares) | shares         8,104        
Share-based compensation expense               133  
Share-based compensation over vesting period         $ 120        
Award vesting period         19 months        
Chief Executive Officer [Member] | Restricted Stock Granted During November 2015 [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Other than options, grants in period (shares) | shares 1,200,000                
Performance period 7 years                
Other than options, granted, fair value $ 28,374                
Share-based compensation expense             597    
Chief Executive Officer [Member] | Restricted Stock Granted During July 2014 [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Other than options, grants in period (shares) | shares   1,102,500              
Other than options, granted, fair value   $ 20,780              
Share-based compensation expense             2,992 1,320  
Chief Executive Officer [Member] | Restricted Stock Granted During October 2013 [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Other than options, grants in period (shares) | shares     30,319            
Share-based compensation expense             $ 86 $ 86 $ 14
Share-based compensation over vesting period     $ 458