Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share - Reconciliation of Number of Common Stock used in Computing Basic and Diluted Earning Per Share (Details)

v3.19.1
Earnings Per Share - Reconciliation of Number of Common Stock used in Computing Basic and Diluted Earning Per Share (Details) - shares
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Weighted Average Number Of Shares Outstanding [Abstract]    
Weighted average shares outstanding - basic 81,033,137 82,253,470
Dilutive effect of share-based awards 110,417 102,578
Weighted average shares outstanding - diluted 81,143,554 82,356,048