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Earnings Per Share (Schedule Of Reconciliation Of Basic And Diluted Shares Of Common Stock Outstanding Used In Calculation Of Earnings Per Share) (Details) - $ / shares shares in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share [Abstract]
Weighted average number of shares outstanding - basic	29,760	29,748
Effect of dilutive stock awards	1,182	925
Weighted average number of shares outstanding - diluted	30,942	30,673
Basic net income (loss) per share	$ 0.00	$ 0.13
Diluted net income (loss) per share	$ 0.00	$ 0.12

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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