Quarterly report pursuant to Section 13 or 15(d)

Earnings per Share - Reconciliation from Basic to Diluted Weighted Average Shares Outstanding (Details)

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Earnings per Share - Reconciliation from Basic to Diluted Weighted Average Shares Outstanding (Details) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Earnings Per Share [Abstract]        
Weighted average shares outstanding – Basic (shares) 133,336,352 104,096,837 133,237,653 104,020,180
Dilutive effect of unvested common shares and restricted stock units with service conditions and assumed stock option exercises and conversions (shares) 1,239,810 0 985,975 0
Weighted average shares outstanding – Diluted (shares) 134,576,162 104,096,837 134,223,628 104,020,180