Earnings (Loss) Per Share (Tables)

12 Months Ended

Dec. 31, 2020

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)	Year Ended December 31
	2020		2019		2018
Weighted average number of common shares outstanding, basic	53,863		53,740		53,598
Dilutive effect of securities:
Restricted Share Units	42		75		70
Performance Share Units	1		10		63
Purchase Match Units	—		16		18
Weighted average number of common shares outstanding, diluted	53,906		53,841		53,749
Effect of dilutive shares on earnings (loss) per share	$	—	$	—	$	—