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Earnings Per Share (Tables)
 9 Months Ended
Sep. 30, 2017
Earnings Per Share [Abstract]  
Schedule of earnings per share, basic and diluted
The following table sets forth the computation of basic and diluted net income (loss) per share for the periods ended:
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2017
 
2016
 
2017
 
2016
 
(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
$
(102,952
)
 
$
(38,841
)
 
$
162,800

 
$
(144,997
)
Less: Undistributed earnings allocated to participating securities
—

 
—

 
(203
)
 
—

Net income (loss) attributable to Vertex common shareholders—basic
$
(102,952
)
 
$
(38,841
)
 
$
162,597

 
$
(144,997
)
 
 
 
 
 
 
 
 
Basic weighted-average common shares outstanding
250,268

 
244,920

 
247,963

 
244,529

Basic net income (loss) attributable to Vertex per common share
$
(0.41
)
 
$
(0.16
)
 
$
0.66

 
$
(0.59
)
 
 
 
 
 
 
 
 
Diluted net income (loss) attributable to Vertex per common share calculation:
 
 
 
 
 
 
 
Net income (loss) attributable to Vertex common shareholders
$
(102,952
)
 
$
(38,841
)
 
$
162,800

 
$
(144,997
)
Less: Undistributed earnings allocated to participating securities
—

 
—

 
(200
)
 
—

Net income (loss) attributable to Vertex common shareholders—diluted
$
(102,952
)
 
$
(38,841
)
 
$
162,600

 
$
(144,997
)
 
 
 
 
 
 
 
 
Weighted-average shares used to compute basic net income (loss) per common share
250,268

 
244,920

 
247,963

 
244,529

Effect of potentially dilutive securities:
 
 
 
 
 
 
 
Stock options
—

 
—

 
2,700

 
—

Restricted stock and restricted stock units
—

 
—

 
1,204

 
—

Other
—

 
—

 
228

 
—

Weighted-average shares used to compute diluted net income (loss) per common share
250,268

 
244,920

 
252,095

 
244,529

Diluted net income (loss) attributable to Vertex per common share
$
(0.41
)
 
$
(0.16
)
 
$
0.64

 
$
(0.59
)
Potential gross common equivalent shares
The Company did not include the securities in the following table in the computation of the dilutive net income (loss) per share attributable to Vertex common shareholders calculations because the effect would have been anti-dilutive during each period:
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2017
 
2016
 
2017
 
2016
 
(in thousands)
Stock options
10,278

 
12,947

 
3,904

 
12,947

Unvested restricted stock and restricted stock units
4,241

 
3,624

 
281

 
3,624