Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2012

Earnings Per Share

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

	Three Months Ended September 30,						Nine Months Ended September 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	$	(57,543	)	$	221,110		$	(30,884	)	$	(129,055	)
Less: Undistributed earnings allocated to participating securities		—			(2,136	)		—			—
Net income (loss) attributable to Vertex common shareholders—basic	$	(57,543	)	$	218,974		$	(30,884	)	$	(129,055	)
Basic weighted-average common shares outstanding		213,767			206,002			211,053			204,262
Basic net income (loss) attributable to Vertex per common share	$	(0.27	)	$	1.06		$	(0.15	)	$	(0.63	)
Diluted net income (loss) attributable to Vertex per common share calculation:
Net income (loss) attributable to Vertex common shareholders	$	(57,543	)	$	221,110		$	(30,884	)	$	(129,055	)
Less: Undistributed earnings allocated to participating securities		—			(2,007	)		—			—
Plus: Interest expense related to convertible senior subordinated notes		—			3,742			—			—
Net income (loss) attributable to Vertex common shareholders—diluted	$	(57,543	)	$	222,845		$	(30,884	)	$	(129,055	)
Weighted-average shares used to compute basic net income (loss) per common share		213,767			206,002			211,053			204,262
Effect of potentially dilutive securities:
Convertible senior subordinated notes		—			8,889			—			—
Stock options		—			4,398			—			—
Other		—			60			—			—
Weighted-average shares used to compute diluted net income (loss) per common share		213,767			219,349			211,053			204,262
Diluted net income (loss) attributable to Vertex per common share	$	(0.27	)	$	1.02		$	(0.15	)	$	(0.63	)

Potential gross common equivalent shares

	Three Months Ended September 30,				Nine Months Ended September 30,
	2012		2011		2012		2011
	(in thousands)
Stock options		20,226		7,267		20,226		21,391
Convertible senior subordinated notes		8,192		—		8,192		8,192
Unvested restricted stock and restricted stock units		2,222		13		2,222		2,020