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Share Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Feb. 12, 2019
Mar. 31, 2019
Mar. 31, 2018
Stock based compensation plans      
Share-based Compensation   $ 1,818 $ 2,512
2016 Triton Plan [Member]      
Stock based compensation plans      
Employee Service Share-based Compensation Not yet Recognized   $ 12,600  
Restricted Stock [Member] | Common Stock [Member] | 2016 Triton Plan [Member]      
Stock based compensation plans      
Grants of restricted shares (in shares)   168,731  
Settled or Cancelled (in shares)   31,506  
Director [Member] | Restricted Stock [Member] | Common Stock [Member] | 2016 Triton Plan [Member]      
Stock based compensation plans      
Vested (Dollar per share) $ 1,500    
Employees, Non-Directors [Member] | Restricted Stock [Member] | Common Stock [Member] | 2016 Triton Plan [Member]      
Stock based compensation plans      
Vested (Dollar per share) $ 33.30