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Net Income per Common Share
 9 Months Ended
Sep. 30, 2014
Earnings Per Share [Abstract]  
Net Income per Common Share
Net Income per Common Share
The following summarizes the calculation of net income per common share attributable to common shareholders for the three and nine months ended September 30, 2014 and 2013.
 
Three Months Ended 
 September 30,
 
Nine Months Ended 
 September 30,
(in thousands, except per share data)
2014
 
2013
 
2014
 
2013
Numerator:
 
 
 
 
 
 
 
Net income
$
7,155

 
$
27,970

 
$
52,516

 
$
82,941

Less: income allocated to unvested restricted shares
(150
)
 
(186
)
 
(453
)
 
(541
)
Net income attributable to common shareholders - basic
7,005

 
27,784

 
52,063

 
82,400

Add: undistributed income attributable to unvested restricted shares - basic
—

 
59

 
26

 
185

Less: undistributed income attributable to unvested restricted shares - diluted
—

 
(59
)
 
(26
)
 
(185
)
Net income attributable to common shareholders - diluted
$
7,005

 
$
27,784

 
$
52,063

 
$
82,400

Denominator:
 
 
 
 
 
 
 
Weighted average shares outstanding - basic
62,175

 
62,605

 
62,238

 
62,678

Dilutive shares - stock options
4

 
26

 
7

 
41

Weighted average shares outstanding - diluted
62,179

 
62,631

 
62,245

 
62,719

Net income per share attributable to common shareholders:
 
 
 
 
 
 
 
Basic
$
0.11

 
$
0.44

 
$
0.84

 
$
1.31

Diluted
$
0.11

 
$
0.44

 
$
0.84

 
$
1.31