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, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Earnings Per Share [Abstract]        
Weighted average shares outstanding – Basic (shares) 104,096,837 103,783,719 104,020,180 81,986,221
Dilutive effect of unvested common shares with service conditions and assumed stock option exercises and conversions (shares) 0 0 0 0
Weighted average shares outstanding – Diluted (shares) 104,096,837 103,783,719 104,020,180 81,986,221