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Capital Stock, Weighted Average Shares Outstanding (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Weighted Average Shares Outstanding [Abstract]
Basic weighted-average common shares outstanding (in shares)	52,296	55,518	55,170
Effect of Dilutive Securities [Abstract]
Stock awards and options (in shares)	469	409	1,061
Convertible note (in shares)	0	0	245
Diluted weighted-average common shares outstanding (in shares)	52,765	55,927	56,476
Stock Options [Member]
Weighted Average Shares Outstanding [Abstract]
Anti-dilutive shares excluded from calculation of diluted earnings per share (in shares)	400	1,400	900

X

- 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.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of convertible debt securities using the if-converted method.

+ References

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-Publisher FASB
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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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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.

+ References

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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.

+ References

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