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7. Earnings Per Share (Details) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Basic weighted average shares outstanding	28,014	27,606	27,959	27,575
Effect of potentially dilutive stock options and restricted stock awards	481	519	484	522
Diluted weighted average common shares	28,495	28,125	28,443	28,097
Anti-dilutive shares	0	96	37	96

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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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