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8. Earnings Per Share (Details) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Basic weighted average shares outstanding	28,312	28,072	28,255	27,997
Effect of potentially dilutive stock options and restricted stock awards	333	384	354	457
Diluted weighted average common shares	28,645	28,456	28,609	28,454
Anti-dilutive shares	94	59	106	37

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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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