Quarterly report pursuant to Section 13 or 15(d)

Share Based Compensation (Share Based Compensation Plans) (Details)

v3.8.0.1
Share Based Compensation (Share Based Compensation Plans) (Details)
shares in Thousands
3 Months Ended
Mar. 31, 2018
shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Director stock awards granted 500
Employee Stock Purchase Plan shares issued 27,117
Restricted stock awards granted 119,100
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]  
Stock Options, Outstanding as of December 31, 2017 1,546,014
Stock Option, Granted 31,635
Stock Option, Exercised (79,083)
Stock Options, Outstanding as of March 31, 2018 1,498,566
Shares available for future grants and ESPP purchases as of March 31,2018 717,913