Earnings per share

12 Months Ended

Dec. 31, 2011

Earnings per share:

Earnings per share

Note 3: Earnings per share

The following table reflects the calculation of basic and diluted earnings per share from continuing operations. During each period, certain options, as noted below, were excluded from the calculation of diluted earnings per share because their effect would have been antidilutive.

	2011			2010			2009
Earnings per share – basic:
Income from continuing operations	$	144,595		$	153,395		$	99,365
Income allocated to participating securities		(823	)		(804	)		(751	)
Income available to common shareholders	$	143,772		$	152,591		$	98,614
Weighted-average shares outstanding		51,036			51,123			50,837
Earnings per share – basic	$	2.82		$	2.98		$	1.94
Earnings per share – diluted:
Income from continuing operations	$	144,595		$	153,395		$	99,365
Income allocated to participating securities		(586	)		(802	)		(751	)
Re-measurement of share-based awards classified as liabilities		(20	)		79			(18	)
Income available to common shareholders	$	143,989		$	152,672		$	98,596
Weighted-average shares outstanding		51,036			51,123			50,837
Dilutive impact of potential common shares		379			202			88
Weighted-average shares and potential common shares outstanding		51,415			51,325			50,925
Earnings per share – diluted	$	2.80		$	2.97		$	1.94
Antidilutive options excluded from calculation		1,835			2,324			2,128

Earnings per share amounts for continuing operations, discontinued operations and net income, as presented on the consolidated statements of income, are calculated individually and may not sum due to rounding differences.