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9. Earnings Per Share (Details) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Basic weighted average shares outstanding	28,494	28,201
Effect of potentially dilutive stock options and restricted stock awards	323	352
Diluted weighted average common shares	28,817	28,553
Anti-dilutive shares	92	112

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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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