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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		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share [Abstract]
Weighted average number of shares outstanding - basic	31,367	29,817	31,325	29,789
Effect of dilutive stock awards	1,823		1,645
Weighted average number of shares outstanding - diluted	33,190	29,817	32,970	29,789
Basic net income (loss) per share	$ 0.06	$ (0.09)	$ 0.24	$ (0.09)
Diluted net income (loss) per share	$ 0.06	$ (0.09)	$ 0.23	$ (0.09)

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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.

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