Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2012

Earnings Per Share

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

	Three Months Ended March 31,
	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	$	91,590		$	(176,096	)
Less: Undistributed earnings allocated to participating securities		(906	)		—
Net income (loss) attributable to Vertex common shareholders—basic	$	90,684		$	(176,096	)
Basic weighted-average common shares outstanding		208,018			202,329
Basic net income (loss) attributable to Vertex per common share	$	0.44		$	(0.87	)
Diluted net income (loss) attributable to Vertex per common share calculation:
Net income (loss) attributable to Vertex common shareholders	$	91,590		$	(176,096	)
Less: Undistributed earnings allocated to participating securities		(860	)		—
Plus: Interest expense and amortization of deferred issuance costs related to convertible senior subordinated notes		3,749			—
Net income (loss) attributable to Vertex common shareholders—diluted	$	94,479		$	(176,096	)
Weighted-average shares used to compute basic net income (loss) per common share		208,018			202,329
Effect of potentially dilutive securities:
Convertible senior subordinated notes		8,891			—
Stock options		2,289			—
Other		66			—
Weighted-average shares used to compute diluted net income (loss) per common share		219,264			202,329
Diluted net income (loss) attributable to Vertex per common share	$	0.43		$	(0.87	)

Potential gross common equivalent shares

	Three Months Ended March 31,
	2012		2011
	(in thousands)
Stock options		13,768		22,453
Convertible senior subordinated notes		—		8,192
Unvested restricted stock and restricted stock units		16		2,206