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7. Earnings Per Share (Details) In Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Basic weighted average shares outstanding	28,072	27,697	27,997	27,616
Effect of potentially dilutive stock options and restricted stock awards	384	406	457	494
Diluted weighted average common shares	28,456	28,103	28,454	28,110
Anti-dilutive shares	59	132	37	117

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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.

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