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8. Earnings Per Share (Details) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Basic weighted average shares outstanding	28,250	28,014	28,226	27,959
Effect of potentially dilutive stock options and restricted stock awards	360	481	356	484
Diluted weighted average common shares	28,610	28,495	28,582	28,443
Anti-dilutive shares	91	0	93	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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