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Capital Stock (Tables)

12 Months Ended

Dec. 31, 2019

Equity [Abstract]

Schedule of Changes in Number of Common Shares Outstanding

The following is a schedule of changes in the number of common shares outstanding since the beginning of 2017:

	Year Ended December 31,
	2019				2018				2017
Beginning balance		249,510,022				248,129,430				247,144,356
Restricted stock grants		1,186,290				865,095				539,096
Restricted stock units vested		720,212				434,046				344,937
Performance stock units issued		12,747				76,149				85,461
Treasury shares		(1,798,468	)			5,302				15,580
Ending balance		249,630,803				249,510,022				248,129,430

Schedule of Change in Treasury Shares

The following is a schedule of change in treasury shares since the beginning of 2017:

	Year Ended December 31,
	2019				2018				2017
Beginning balance		9,665				14,967				30,547
Rabbi trust shares distributed and/or sold		(1,532	)			(5,302	)			(15,580	)
Shares repurchased		1,800,000				—				—
Ending balance		1,808,133				9,665				14,967

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- Definition

Tabular disclosure of an entity's capital units or capital shares, including the value of capital units or capital shares, units authorized, units outstanding and other information necessary to a fair presentation.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 210
-Section S99
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Tabular disclosure of treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock.

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