Net Income Per Share (Notes)

9 Months Ended

Sep. 30, 2015

The Company’s basic net income per share amounts have been computed by dividing net income by the weighted average number of shares of Common Stock and Class A Stock outstanding. Net income 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. The calculations of basic and diluted net income per share are as follows:



	Three Months Ended September 30,
	2015		2014
Net income - basic	$	210,398	$	83,375
Effective of dilutive securities:
Convertible senior notes - interest expense related to contractual coupon interest rate and amortization of discount and note issuance costs	145		2,803
Net income - diluted	$	210,543	$	86,178

(Shares in thousands)
Weighted average shares - basic	103,348		100,796
Effect of dilutive securities:
Stock options	9,632		9,377
Restricted stock	481		430
Convertible senior notes	308		4,033
Warrants	2,175		2,787
Dilutive potential shares	12,596		16,627
Weighted average shares - diluted	115,944		117,423

Net income per share - basic	$	2.04	$	0.83
Net income per share - diluted	$	1.82	$	0.73



	Nine Months Ended September 30,
	2015		2014
Net income - basic and diluted	$	481,062	$	248,031

(Shares in thousands)
Weighted average shares - basic	102,825		100,325
Effect of dilutive securities:
Stock options	9,449		9,515
Restricted stock	475		413
Warrants	2,395		2,950
Dilutive potential shares	12,319		12,878
Weighted average shares - diluted	115,144		113,203

Net income per share - basic	$	4.68	$	2.47
Net income per share - diluted	$	4.18	$	2.19

Shares which have been excluded from diluted per share amounts because their effect would have been antidilutive include the following:

Three Months Ended September 30,

(Shares in thousands)

Stock options