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NET INCOME PER SHARE | 9 Months Ended
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Sep. 30, 2013
Earnings Per Share [Abstract] |
NET INCOME PER SHARE | 8. NET INCOME PER SHARE Per share results have been computed based on the average number of common shares outstanding. The computation of basic and diluted net income per share is determined using net income applicable to common stockholders as the numerator and the number of shares included in the denominator as follows (in thousands, except per share amounts):
|  | Three Months Ended September 30, |  | Nine Months Ended September 30, |
|  | 2013 |  | 2012 |  | 2013 |  | 2012 |
Basic net income per share: |  |  |  |  |  |  |  |  |  |  |  |  |
Net income applicable to common stockholders |  | $ | 16,236 |  | $ | 18,441 |  | $ | 36,106 |  | $ | 25,447 |
Undistributed earnings allocated to participating securities |  |  | (117) |  |  | (166) |  |  | (293) |  |  | (218) |
Net income applicable to common stockholders excluding amounts applicable to participating securities |  | $ | 16,119 |  | $ | 18,275 |  | $ | 35,813 |  | $ | 25,229 |
Weighted average common shares outstanding |  |  | 68,487 |  |  | 68,357 |  |  | 68,442 |  |  | 68,308 |
Basic net income per share |  | $ | 0.24 |  | $ | 0.27 |  | $ | 0.52 |  | $ | 0.37 |
Diluted net income per share: |  |  |  |  |  |  |  |  |  |  |  |  |
Net income applicable to common stockholders |  | $ | 16,236 |  | $ | 18,441 |  | $ | 36,106 |  | $ | 25,447 |
Undistributed earnings allocated to participating securities |  |  | (117) |  |  | (166) |  |  | (293) |  |  | (218) |
Net income applicable to common stockholders excluding amounts applicable to participating securities |  | $ | 16,119 |  | $ | 18,275 |  | $ | 35,813 |  | $ | 25,229 |
Weighted average common shares outstanding |  |  | 68,487 |  |  | 68,357 |  |  | 68,442 |  |  | 68,308 |
Dilutive stock options and restricted stock |  |  | 524 |  |  | 159 |  |  | 458 |  |  | 234 |
Diluted weighted average common shares outstanding |  |  | 69,011 |  |  | 68,516 |  |  | 68,900 |  |  | 68,542 |
Diluted net income per share |  | $ | 0.23 |  | $ | 0.27 |  | $ | 0.52 |  | $ | 0.37 |
Average diluted shares outstanding for the three and nine month periods ended September 30, 2013 and 2012 exclude options to purchase common shares totaling 1,018 and 1,808, respectively, and 1,301 and 1,648, respectively, because the exercise prices were greater than the average market price of the common shares. In addition, the calculation of diluted net income per share excludes the impact of the Company’s Notes as the average stock price of the Company’s common stock was below the initial conversion price of approximately $11.70 per share for the quarter ended September 30, 2013. The Notes may have a dilutive impact if the average market price of the Company’s common stock is above the conversion price of the Notes.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=32703322&loc=d3e4984-109258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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