Equity Based Compensation - Compensation Expense (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]    
Total equity based compensation expense $ 2,985 $ 5,595
Restricted stock awards    
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]    
Total equity based compensation expense 1,018 1,874
Stock option awards    
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]    
Total equity based compensation expense $ 1,967 $ 3,721