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Share-Based Compensation - Awards Granted (Details) - 2014 Plan - $ / shares
May 01, 2019
Mar. 25, 2019
Feb. 20, 2019
Jan. 02, 2019
Feb. 21, 2018
Jan. 02, 2018
RSAs            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares of restricted stock awarded (shares) 2,830     30,891   21,304
Price per share (usd per share) $ 29.44     $ 28.32   $ 46.93
Restricted Stock Units (RSUs)            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares of restricted stock awarded (shares)   5,000 133,750   125,000  
Price per share (usd per share)   $ 26.55 $ 27.71   $ 46.35  
Performance Stock Units (PSUs)            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares of restricted stock awarded (shares)     85,000   85,000  
Price per share (usd per share)     $ 27.71   $ 46.35