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Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2011

Reconciliation of Number of Common Shares Used in Calculating Basic and Diluted Net Earnings per Share

The following table reconciles the number of common shares used in calculating the basic and diluted net earnings per share:

		2011				2010				2009
Basic average common shares outstanding			22,913,881				22,947,400				22,720,614
Incremental shares due to:
Restricted stock units			220,457				356,048				601,432
Performance shares			817,946				366,504				218,080
Diluted average common shares outstanding			23,952,284				23,669,952				23,540,126
Basic net earnings per common share		$	1.73			$	3.22			$	8.03
Diluted net earnings per common share			1.66				3.12				7.75
Anti-dilutive shares excluded from calculation			88,674				—				23,938

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations.

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+ Details

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