Per Share Data

The Company’s basic net income (loss) per share amounts have been computed by dividing net income (loss) by the weighted average number of shares of Common Stock and Class A Stock outstanding. Net income (loss) per share is presented on a combined basis, inclusive of Common Stock and Class A Stock outstanding, as each class of stock has equivalent economic rights. Diluted net income per share includes the potential dilutive effect of other securities as if such securities were converted or exercised during the period, when the effect is dilutive. For the three and nine months ended September 30, 2011, the Company reported a net loss; therefore, no common stock equivalents were included in the computation of diluted net loss per share for this period, since such inclusion would have been antidilutive. The calculations of basic and diluted net income (loss) per share are as follows:



	Three Months Ended September 30,
	2012		2011
Net income (loss) - basic	$	191,468	$	(62,365	)
Effect of dilutive securities:
Convertible senior notes - interest expense related to contractual coupon interest rate and amortization of discount and note issuance costs	7,374
Net income (loss) - diluted	$	198,842	$	(62,365	)

(Shares in thousands)
Weighted average shares - basic	95,012		91,046
Effect of dilutive securities:
Stock options	14,106
Restricted stock	797
Convertible senior notes	4,761
Warrants	1,154
Dilutive potential shares	20,818
Weighted average shares - diluted	115,830		91,046

Net income (loss) per share - basic	$	2.02	$	(0.68	)
Net income (loss) per share - diluted	$	1.72	$	(0.68	)

	Nine Months Ended September 30,
	2012		2011
Net income (loss) - basic and diluted	$	279,862	$	(168,317	)

(Shares in thousands)
Weighted average shares - basic	94,349		90,215
Effect of dilutive securities:
Stock options	14,080
Restricted stock	699
Warrants	652
Dilutive potential shares	15,431
Weighted average shares - diluted	109,780		90,215

Net income (loss) per share - basic	$	2.97	$	(1.87	)
Net income (loss) per share - diluted	$	2.55	$	(1.87	)

Shares which have been excluded from the September 30, 2012 and 2011 diluted per share amounts because their effect would have been antidilutive, include the following (shares in thousands):



	Three Months Ended September 30,
	2012	2011
Stock options	175	20,395
Restricted stock		854
Warrants	3,607

	Nine Months Ended September 30,
	2012	2011
Stock options	91	21,239
Restricted stock		848
Convertible senior notes	4,761
Warrants	4,109