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Earnings (Loss) Per Share (Tables)
9 Months Ended
Sep. 30, 2021
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted The following table provides a reconciliation between the Company's basic weighted average number of common shares outstanding to its diluted weighted average number of common shares outstanding:
(In thousands, except per share data)
Three Months Ended
September 30
Nine Months Ended
September 30
2021202020212020
Weighted average number of common shares outstanding, basic53,982 53,889 53,955 53,854 
Dilutive effect of securities:
Restricted Share Units92 29 84 41 
Performance Share Units4 — 3 
Weighted average number of common shares outstanding, diluted54,078 53,918 54,042 53,896 
Effect of dilutive shares on earnings (loss) per share$ $— $(0.01)$—