Earnings Per Share (Details) - shares	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Class of Stock [Line Items]
Stock Issued During Period, Shares, Stock Splits	0	3,328,574
Weighted average common shares outstanding for basic calculation (shares)	267,318,860	269,216,820
Add: Effect of stock options, deferred stock units and restricted stock units (shares)	146,459	19,742
Weighted average common shares outstanding for diluted calculation (shares)	267,465,319	269,236,562
Participating securities (shares)	110,647	53,204
Anti-dilutive shares (shares)	1,106,823	1,297,661

Participating Securities

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- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

+ References

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- Definition

Number of shares issued during the period as a result of a stock split.

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- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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