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Earnings (Loss) per Share - Additional Information (Details) - shares
shares in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Earnings Per Share [Abstract]        
Dilutive effect of shares omitted from the calculation of diluted weighted average shares outstanding and diluted earnings per share 1.2 0.6 0.4 0.3