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Equity-Based Compensation - Summary of Equity-Based Compensation Expense (Details)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2017
USD ($)
plan
$ / shares
shares
Mar. 31, 2016
USD ($)
shares
Dec. 31, 2016
$ / shares
shares
Share-based Compensation      
Number of Equity-Based Compensation Plans | plan 4    
Restricted stock units | $ $ 880 $ 282  
Service-Based RSUs      
Share-based Compensation      
Restricted stock units | $ 550 512  
Performance and market-based RSU's      
Share-based Compensation      
Restricted stock units | $ $ 384 $ (182)  
Cash Settled Awards      
Share-based Compensation      
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number | shares 16,285 12,074  
Restricted stock units | $ $ (54) $ (48)  
RSUs      
Share-based Compensation      
Restricted stock units | $ 880 282  
Income tax benefit | $ $ 331 $ 106  
Officers, key employees, and non-employee directors | Service-Based RSUs      
Share-based Compensation      
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Forfeitures | shares 2,536    
Releasable - weighted average fair value | $ / shares $ 11.38    
Granted - shares | shares 33,040    
Forfeited - weighted average fair value | $ / shares $ 17.46    
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Released Number | shares 114,847    
Granted - weighted average fair value | $ / shares $ 23.00    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value | $ / shares 13.59   $ 13.37
Converted - weighted average fair value | $ / shares $ 15.11    
Releasable - shares | shares 304,883    
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number | shares 470,135   554,478