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Equity and Share-Based Compensation - Unrestricted Common Share Awards (Details) - USD ($)
$ in Thousands
2 Months Ended 12 Months Ended
Nov. 07, 2016
Dec. 31, 2016
Dec. 31, 2017
Share-Based Compensation      
Share-based compensation costs recognized   $ 2,909 $ 9,196
Unrestricted Common Share Awards | Employees and non-employee directors      
Share-Based Compensation      
Granted (in shares) 12,400    
Share-based compensation costs recognized   200  
Unrecognized expense for share-based compensation   $ 0 $ 0