Annual report pursuant to Section 13 and 15(d)

Earnings Per Share - Schedule of Earnings Per Share, Basic and Diluted (Details)

v3.10.0.1
Earnings Per Share - Schedule of Earnings Per Share, Basic and Diluted (Details) - shares
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Weighted Average Number Of Shares Outstanding [Abstract]      
Weighted average shares outstanding - basic 81,923,564 82,308,417 83,112,012
Dilutive effect of share-based awards 96,217 98,651 41,647
Weighted average shares outstanding - diluted 82,019,781 82,407,068 83,153,659