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9. Earnings Per Share (Details) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Basic weighted average shares outstanding	28,538	28,250	28,516	28,226
Effect of potentially dilutive stock options and restricted stock awards	330	360	327	356
Diluted weighted average common shares	28,868	28,610	28,843	28,582
Anti-dilutive shares	92	91	92	93

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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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