Quarterly report pursuant to Section 13 or 15(d)

Share-Based Compensation - Expense (Details)

v3.19.2
Share-Based Compensation - Expense (Details) - USD ($)
$ in Thousands, shares in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Share-Based Compensation        
Share-based compensation expense $ 4,513 $ 2,995 $ 7,485 $ 5,397
Income tax benefit realized from award vestings $ 1,560 $ (19) $ 3,806 $ 2,595
2015 Plan        
Share-Based Compensation        
Number of shares available 2.3   2.3  
2015 Plan | Maximum        
Share-Based Compensation        
Number of shares authorized 4.0   4.0