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Earnings Per Share | 9 Months Ended
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Sep. 30, 2013
Earnings Per Share [Abstract] |
Earnings Per Share | 6. Basic earnings per share is computed by dividing net income by the weighted average number of shares of common stock outstanding. Diluted earnings per share is computed by dividing net income by the weighted average common and potentially dilutive common equivalent shares outstanding, determined as follows:
| Three Months | Nine Months
| Ended September 30 | Ended September 30
(In Thousands) | 2013 | 2012 | 2013 | 2012
Weighted average shares outstanding used |  |  |  |
to compute basic earnings per share | 32,201 | 32,052 | 32,155 | 32,038
Incremental dilutive shares attributable to stock |  |  |  |
options and restricted stock | 457 | 49 | 436 | 160
Shares used to compute diluted earnings |  |  |  |
per share | 32,658 | 32,101 | 32,591 | 32,198
Incremental shares attributable to stock options and restricted stock are computed using the average market price during the related period. During the three and nine months ended September 30, 2013 average out-of-the-money options to purchase shares were excluded from the calculation of incremental shares attributable to stock options and restricted stock were 60,100 and 40,056, respectively, and for the three and nine months ended September 30, 2012, average out-of-the-money options to purchase shares were excluded from the calculation of incremental shares attributable to stock options and restricted stock were 1,023,733 and 692,600, respectively.

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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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