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NET INCOME PER COMMON SHARE (Tables)
9 Months Ended
Sep. 30, 2014
NET INCOME PER COMMON SHARE [Abstract]  
Components of Computation of Basic and Diluted Net Income Per Common Share
Components of the computation of basic and diluted net income per common share for the indicated periods were as follows (dollars in thousands, except per share amounts):

  
Quarter Ended
September 30
  
Nine Months Ended
September 30
 
  
2014
  
2013
  
2014
  
2013
 
Basic net income per common share
        
Numerator for basic net income per common share:
        
Net income
 
$
32,391
  
$
24,702
  
$
107,346
  
$
89,514
 
Redemption premiums paid on Series A and Series B preferred shares*
  
   
   
   
(19,924
)
Preferred share dividends
  
(3,529
)
  
(3,188
)
  
(10,216
)
  
(14,325
)
Earnings participation of unvested stock awards
  
(24
)
  
(32
)
  
(58
)
  
(96
)
  
$
28,838
  
$
21,482
  
$
97,072
  
$
55,169
 
Denominator for basic net income per common share:
                
Weighted average common shares outstanding
  
95,793
   
95,761
   
95,779
   
95,647
 
Average unvested stock awards outstanding
  
(388
)
  
(493
)
  
(395
)
  
(508
)
   
95,405
   
95,268
   
95,384
   
95,139
 
  
$
0.30
  
$
0.23
  
$
1.02
  
$
0.58
 
Diluted net income per common share
                
Numerator for diluted net income per common share:
                
Net income available to common stockholders
 
$
28,838
  
$
21,482
  
$
97,072
  
$
55,169
 
Dividends on dilutive convertible preferred shares
  
   
   
   
44
 
  
$
28,838
  
$
21,482
  
$
97,072
  
$
55,213
 
Denominator for diluted net income per common share:
                
Basic weighted average common shares outstanding
  
95,405
   
95,268
   
95,384
   
95,139
 
Net effect of dilutive equity awards
  
272
   
148
   
230
   
133
 
Net effect of dilutive convertible preferred shares
  
   
   
   
101
 
   
95,677
   
95,416
   
95,614
   
95,373
 
  
$
0.30
  
$
0.23
  
$
1.02
  
$
0.58
 
Potentially Dilutive Securities Excluded from Computation of Net Income Per Common Share
Potentially dilutive securities excluded from the computation of net income per share because the effect of inclusion was antidilutive were as follows (in thousands):
 
   
Quarter Ended
September 30
  
Nine Months Ended
September 30
 
  
2014
  
2013
  
2014
  
2013
 
Antidilutive convertible preferred shares*
  
   
   
   
16,539
 
Antidilutive equity awards excludable under the treasury stock method
  
   
35
   
   
35
 
 
*The Series A and Series B preferred shares were redeemed in June 2013 (See NOTE 9).