Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2011

Earnings Per Share

Schedule of reconciliation of the numerators and denominators used in calculating basic and diluted earnings per share

	Three Months Ended June 30,
	2011					2010
	Net Income (Numerator)		Shares (Denominator)	Per Share Amount		Net Income (Numerator)		Shares (Denominator)	Per Share Amount
Basic earnings per share	$	98,710	218,500	$	.45	$	49,207	216,635	$	.23
Dilutive stock option effect	—		1,384			—		1,583
5.125% convertible senior notes, net of tax	2,358		16,382			2,377		16,382
Diluted earnings per share	$	101,068	236,266	$	.43	$	51,584	234,600	$	.22

	Six Months Ended June 30,
	2011					2010
	Net Income (Numerator)		Shares (Denominator)	Per Share Amount		Net Income (Numerator)		Shares (Denominator)	Per Share Amount
Basic earnings per share	$	204,613	218,246	$	.94	$	114,176	216,459	$	.53
Dilutive stock option effect	—		1,617			—		1,789
5.125% convertible senior notes, net of tax	4,716		16,382			4,754		16,382
Diluted earnings per share	$	209,329	236,245	$	.89	$	118,930	234,630	$	.51