Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2011

Notes to Financial Statements [Abstract]

Schedule Of Weighted Average Number Of Shares Outstanding Basic To Diluted

	Three months ended September 30,		Nine months ended      September 30,
	2011	2010	2011	2010
Basic shares outstanding	96,083	94,312	95,792	94,046
Effect of potential common stock:
Common stock awards	1,157	975	1,242	945
Senior subordinated convertible notes	1,068	1,384	1,251	1,383
Diluted shares outstanding	98,308	96,671	98,285	96,374