Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2011

Earnings Per Share [Abstract]

Weighted-average Shares Used to Calculate Basic and diluted EPS

The following table reflects weighted-average shares used to calculate basic and diluted EPS for the periods presented (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2011		2010		2011		2010
Basic shares		64,119		63,886		64,048		63,834
Dilutive shares		191		181		203		182
Diluted shares		64,310		64,067		64,251		64,016

Weighted-average antidilutive stock awards

The following table reflects weighted-average antidilutive stock awards for the periods presented (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2011		2010		2011		2010
Weighted-average antidilutive shares		1,212		1,327		1,225		1,263