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Earnings Per Common Share (Tables)
 12 Months Ended
Dec. 31, 2014
Earnings Per Share [Abstract]  
Computation of Basic and Diluted Net Earnings Per Share
The computations of basic net earnings per share and diluted net earnings per share for 2014, 2013 and 2012 are as follows:

 
 
Year ended December 31, 2014
 
Income
(Numerator)
 
Shares
(Denominator)
 
Per-share
Amount
 
 
Net income
$
21,850,000

 
 
 
 
 
Basic earnings per common share
$
21,850,000

 
70,616,000

 
$
0.31

 
Effect of dilutive securities:
 
 
 
 
 
 
Stock options and restricted stock
 
 
725,000

 
—

 
Diluted earnings per common share
$
21,850,000

 
71,341,000

 
$
0.31

 
 
 
 
 
Year ended December 31, 2013
 
Income
(Numerator)
 
Shares
(Denominator)
 
Per-share
Amount
 
 
Net income
$
47,129,000

 
 
 
 
 
Basic earnings per common share
$
47,129,000

 
69,206,000

 
$
0.68

 
Effect of dilutive securities:
 
 
 
 
 
 
Stock options and restricted stock
 
 
839,000

 
(0.01
)
 
Diluted earnings per common share
$
47,129,000

 
70,045,000

 
$
0.67

 
 
 
 
 
Year ended December 31, 2012
 
Income
(Numerator)
 
Shares
(Denominator)
 
Per-share
Amount
 
 
Net income
$
44,214,000

 
 
 
 
 
Basic earnings per common share
$
44,214,000

 
67,511,000

 
$
0.65

 
Effect of dilutive securities:
 
 
 
 
 
 
Stock options and restricted stock
 
 
974,000

 
—

 
Diluted earnings per common share
$
44,214,000

 
68,485,000

 
$
0.65