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Earnings Per Share (Narrative) (Details) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive securities excluded from computation of earnings per share (in shares) 0 0 0 0
Performance-based restricted stock units [Member] | Minimum [Member]        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Performance-based restricted stock units that could be issued upon vesting 0   0  
Performance-based restricted stock units [Member] | Maximum [Member]        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Performance-based restricted stock units that could be issued upon vesting 900,000   900,000