Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2012

Notes to Financial Statements [Abstract]

Schedule Of Weighted Average Number Of Shares Outstanding Basic To Diluted

	Three months ended June 30,		Six months ended June 30,
	2012	2011	2012	2011
Basic shares outstanding	97,460	95,911	97,249	95,644
Effect of potential common stock:
Common stock awards	1,129	1,282	1,172	1,293
Senior subordinated convertible notes	1,030	1,219	1,079	1,345
Diluted shares outstanding	99,619	98,412	99,500	98,282