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Earnings per share | 3 Months Ended
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Mar. 31, 2016
Earnings Per Share [Abstract] |
Earnings per share | 11. Earnings Per Share The following is a reconciliation of the shares used to compute basic and diluted earnings per share (in thousands):
| Three Months Ended
| March 31,
| 2016 |  | 2015
Weighted average number of common shares outstanding used to compute basic earnings per share | 53,147 |  |  | 51,519 |
Dilutive effect of stock-based awards | 497 |  |  | 690 |
Number of shares used to compute diluted earnings per share | 53,644 |  |  | 52,209 |
There were 473,000 share equivalents outstanding during the three months ended March 31, 2016 that were excluded from the computation of diluted earnings per share because the exercise price for these options was greater than the average market price of the Company’s shares of common stock and became anti-dilutive when applying the treasury stock method. During the three months ended March 31, 2015 there were no significant share equivalents outstanding that were excluded from the computation of diluted earnings per share because they became anti-dilutive when applying the treasury stock method.

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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 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 Reference 2: 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 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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