Quarterly report pursuant to Section 13 or 15(d)

Share-Based Compensation - Narrative (Details)

v3.8.0.1
Share-Based Compensation - Narrative (Details)
3 Months Ended
Dec. 31, 2017
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Performance-based targets for target period 3 years
Stock options  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Stock option granted, weighted-average exercise price $ 45.78
Stock option granted, weighted-average grant date fair value 11.10
Time-based stock awards  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Equity instruments other than options, grant date fair value 45.14
Performance-based stock awards (maximum that can be earned)  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Equity instruments other than options, grant date fair value $ 53.39
Performance-based stock awards granted, number of units | shares 110,717
Award performance measurement period 3 years