Net Income per Share (Tables)

9 Months Ended

Sep. 30, 2012

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The computation of the Company’s basic and diluted net income per share was as follows:

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2012			2011			2012			2011
	(In thousands, except per share data)
Numerator for basic and dilutive income per common share:
Net income	$	60,573		$	16,525		$	108,855		$	46,572
Less: Accretion of Series B Convertible Preferred Stock	(688		)	(647		)	(2,033		)	(1,915		)
Less: Net income allocated to unvested participating restricted stock	(1,187		)	(359		)	(2,477		)	(1,212		)
Net income available to common stockholders - basic	58,698			15,519			104,345			43,445
Effect of unvested participating restricted stock in two-class calculation	57			5			121			22
Accretion of Series B Convertible Preferred Stock	688			—			2,033			—
Net income available to common stockholders - diluted	$	59,443		$	15,524		$	106,499		$	43,467
Denominator:
Weighted average outstanding shares of common stock - basic	18,006			17,968			17,859			17,912
Dilutive effect of:
Stock options	246			275			270			356
Series B Convertible Preferred Stock	672			—			672			—
Weighted average outstanding shares of common stock - diluted	18,924			18,243			18,801			18,268
Net income per common share:
Basic	$	3.26		$	0.86		$	5.84		$	2.43
Diluted	$	3.14		$	0.85		$	5.66		$	2.38