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Earnings per Common Share (Tables)
12 Months Ended
Dec. 31, 2014
Earnings Per Share [Abstract]  
Reconciliation of basic and diluted earnings per common share
The following is a reconciliation of basic and diluted earnings per common share (in thousands, except share and per-share data):
 
For the year ended December 31,
 
2014
 
2013
 
2012
Numerator:
 
 
 
 
 
Net income (loss) attributable to common shareholders
$
47,787

 
$
19,965

 
$
8,254

Less: dividends paid on unvested share-based compensation
(459
)
 
(328
)
 
(310
)
Undistributed earnings attributable to share-based compensation

 

 

Net income (loss) available to common shareholders
$
47,328

 
$
19,637

 
$
7,944

Denominator:
 
 
 
 
 
Weighted-average number of common shares — basic
65,646,712

 
61,498,389

 
55,806,543

Effect of dilutive share-based compensation
617,406

 
338,352

 
148,954

Weighted-average number of common shares — diluted
66,264,118

 
61,836,741

 
55,955,497

 
 
 
 
 
 
Net income (loss) per share available to common shareholders — basic
$
0.72

 
$
0.32

 
$
0.14

Net income (loss) per share available to common shareholders — diluted
$
0.71

 
$
0.32

 
$
0.14