Capital Stock - Summary of Activity of Common Shares (Details) - shares	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Common Shares Outstanding and Treasury Shares Held Rollforward [Table]
Common shares outstanding, beginning balance	125,976,071	125,481,163	125,737,565
Exercise of common stock options, net	10,929	0	0
Grants of restricted stock, net	950,163	494,908	(256,402)
Common shares outstanding, ending balance	126,937,163	125,976,071	125,481,163

Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited.

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