Quarterly report pursuant to Section 13 or 15(d)

Earnings per Share - Anti-dilutive Shares (Details)

v3.19.2
Earnings per Share - Anti-dilutive Shares (Details) - $ / shares
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Restricted stock awards with performance only targets not yet achieved        
Antidilutive Securities Excluded from Computation of Earnings Per Share        
Antidilutive (shares) 1,637,134 1,760,937 1,638,318 1,760,937
Stock options with performance only targets not yet achieved        
Antidilutive Securities Excluded from Computation of Earnings Per Share        
Antidilutive (shares) 586,253 586,253 586,253 586,253
Anti-dilutive restricted stock awards, restricted stock units and performance stock units        
Antidilutive Securities Excluded from Computation of Earnings Per Share        
Antidilutive (shares) 0 0 2,102 0
Anti-dilutive stock options        
Antidilutive Securities Excluded from Computation of Earnings Per Share        
Antidilutive (shares) 863,063 621,747 863,063 621,747
Anti-dilutive stock options | $16.97 (usd per share)        
Antidilutive Securities Excluded from Computation of Earnings Per Share        
Antidilutive (shares) 621,747 621,747 621,747 621,747
Exercise price (usd per share) $ 16.97 $ 16.97 $ 16.97 $ 16.97
Anti-dilutive stock options | $17.50 (usd per share)        
Antidilutive Securities Excluded from Computation of Earnings Per Share        
Antidilutive (shares) 241,316 0 241,316 0
Exercise price (usd per share) $ 17.50 $ 17.50 $ 17.50 $ 17.50