Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Schedule Of Weighted Average Assumptions For Restricted Stock Units) (Details)

v3.19.1
Stock-Based Compensation (Schedule Of Weighted Average Assumptions For Restricted Stock Units) (Details)
3 Months Ended
Mar. 31, 2019
$ / shares
Restricted Stock Units [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Estimated average grant date fair value per restricted stock unit (in dollars per share) $ 95.58