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Net Income per Common Share
 3 Months Ended
Mar. 31, 2017
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 months ended March 31, 2017 and 2016.
 
Three Months Ended 
 March 31,
(in thousands, except per share data)
2017
 
2016
Numerator:
 
 
 
Net income
$
18,785

 
$
24,135

Less: income allocated to unvested restricted shares
(239
)
 
(276
)
Net income attributable to common shareholders - basic
18,546

 
23,859

Add: undistributed income attributable to unvested restricted shares - basic
23

 
57

Less: undistributed income attributable to unvested restricted shares - diluted
(23
)
 
(57
)
Net income attributable to common shareholders - diluted
$
18,546

 
$
23,859

Denominator:
 
 
 
Weighted average shares outstanding - basic and diluted
60,013

 
61,696

Net income per share attributable to common shareholders:
 
 
 
Basic
$
0.31

 
$
0.39

Diluted
$
0.31

 
$
0.39