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Earnings Per Share
 6 Months Ended
Jun. 30, 2014
Earnings Per Share [Abstract]  
Earnings Per Share
Earnings Per Share
Basic earnings per common share is calculated by dividing net income by the weighted average number of common shares outstanding for the period. Diluted earnings per common share is calculated by dividing net income, adjusted for the effect of assumed conversion of convertible notes, by the weighted average number of common shares outstanding combined with dilutive common share equivalents outstanding, if the effect is dilutive.
In connection with the sale of the 2008 Notes, the Company entered into a Share Lending Agreement for 3.8 million shares of the Company’s common stock (see Note 9). Contractual undertakings of the Borrower had the effect of substantially eliminating the economic dilution that otherwise would result from the issuance of the Borrowed Shares, and all shares outstanding under the Share Lending Agreement were contractually obligated to be returned to the Company. As a result, shares loaned under the Share Lending Agreement were not considered outstanding for the purpose of computing and reporting earnings per share. The Share Lending Agreement was terminated on January 22, 2013 upon the return of all Borrowed Shares to the Company.
On February 15, 2013, the Company repurchased the remaining $5.2 million of outstanding 2008 Notes for cash. Following this repurchase, the Company no longer has any outstanding convertible senior notes. For the six months ended June 30, 2013, the Company’s convertible notes were excluded from the calculation of diluted earnings per common share, as inclusion was anti-dilutive. In addition, for the three and six months ended June 30, 2013, approximately 0.1 million stock options with an exercise price in excess of the average market price of the Company’s common stock were excluded from the calculation of diluted earnings per common share.
Basic and diluted earnings per common share are as follows (in thousands, except per share data):
 
Three months ended June 30,
 
Six months ended June 30,
 
2014
 
2013
 
2014
 
2013
Net income - Basic and Diluted
$
11,041

 
$
8,440

 
$
23,058

 
$
16,205

 
 
 
 
 
 
 
 
Weighted average common shares outstanding - Basic
54,645

 
51,086

 
54,299

 
49,841

Assumed conversions:
 
 
 
 
 
 
 
Incremental common shares from warrants
—

 
1,429

 
243

 
1,421

Incremental common shares from stock options
878

 
1,174

 
916

 
1,167

Incremental common shares from restricted stock units
10

 
24

 
15

 
16

Weighted average common shares outstanding - Diluted
55,533

 
53,713

 
55,473

 
52,445

 
 
 
 
 
 
 
 
Basic earnings per common share
$
0.20

 
$
0.17

 
$
0.42

 
$
0.33

Diluted earnings per common share
$
0.20

 
$
0.16

 
$
0.42

 
$
0.31