Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2012

Earnings Per Share

Calculation of net income (loss) per basic and diluted share

	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
	(in thousands, except per share amounts)
Basic net income (loss) attributable to Vertex per common share calculation:
Net income (loss) attributable to Vertex common shareholders	$	(64,931	)	$	(174,069	)	$	26,659		$	(350,165	)
Less: Undistributed earnings allocated to participating securities		—			—			(260	)		—
Net income (loss) attributable to Vertex common shareholders—basic	$	(64,931	)	$	(174,069	)	$	26,399		$	(350,165	)
Basic weighted-average common shares outstanding		211,344			204,413			209,681			203,377
Basic net income (loss) attributable to Vertex per common share	$	(0.31	)	$	(0.85	)	$	0.13		$	(1.72	)
Diluted net income (loss) attributable to Vertex per common share calculation:
Net income (loss) attributable to Vertex common shareholders	$	(64,931	)	$	(174,069	)	$	26,659		$	(350,165	)
Less: Undistributed earnings allocated to participating securities		—			—			(256	)		—
Net income (loss) attributable to Vertex common shareholders—diluted	$	(64,931	)	$	(174,069	)	$	26,403		$	(350,165	)
Weighted-average shares used to compute basic net income (loss) per common share		211,344			204,413			209,681			203,377
Effect of potentially dilutive securities:
Stock options		—			—			3,188			—
Other		—			—			88			—
Weighted-average shares used to compute diluted net income (loss) per common share		211,344			204,413			212,957			203,377
Diluted net income (loss) attributable to Vertex per common share	$	(0.31	)	$	(0.85	)	$	0.12		$	(1.72	)

Potential gross common equivalent shares

	Three Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
	(in thousands)
Stock options		18,771		20,589		10,624		20,589
Convertible senior subordinated notes		8,192		8,192		8,192		8,192
Unvested restricted stock and restricted stock units		2,087		1,971		8		1,971