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Stock-Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Millions
Feb. 16, 2017
Feb. 15, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Options granted in period 444,491 590,128
Share Price   $ 27.26
Fair value $ 9.3 $ 12.4
Restricted Stock [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares granted in period 174,561 228,174
Share Price $ 26.86  
Vesting period of shares 3 years 3 years