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Net Income per Share | 3 Months Ended
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Mar. 31, 2012
Net Income per Share [Abstract] |
Net Income per Share | 3. Net income per share Basic earnings per share for the Company’s common stock is computed by dividing net income available to common shareholders attributable to common stock for the period by the weighted average number of common shares outstanding during the period. Diluted earnings per share for the Company’s common stock assume the exercise of outstanding stock options and shares granted under the 2008 Long Term Retention Plan under the Company’s stock based employee compensation plans. The following table shows how net income available to common shareholders is allocated using the two-class method, for the three-month periods ended March 31, 2012 and 2011:
|  | Three Months Ended March 31, |
|  | 2012 |  |  | 2011 |
|  | Basic |  |  | Diluted |  |  | Basic |  |  | Diluted |
Net income |  | $ | 19,637,038 |  |  | $ | 19,637,038 |  |  | $ | 14,057,634 |  |  | $ | 14,057,634 |
Net income attributable to Noncontrolling interests |  |  | (2,428 | ) |  |  | (2,428 | ) |  |  | — |  |  |  | — |
Change in redeemable amount of noncontrolling interest |  |  | 316,298 |  |  |  | 316,298 |  |  |  | — |  |  |  | — |
Net income attributable to MercadoLibre, Inc.corresponding to common stock |  | $ | 19,950,908 |  |  | $ | 19,950,908 |  |  | $ | 14,057,634 |  |  | $ | 14,057,634 |
Net income per share of common stock is as follows for the three-month periods ended March 31, 2012 and 2011:
|  | Three Months Ended March 31, |
|  | 2012 |  |  | 2011 |
|  | Basic |  |  | Diluted |  |  | Basic |  |  | Diluted |
Net income attributable to MercadoLibre, Inc. per common share |  | $ | 0.45 |  |  | $ | 0.45 |  |  | $ | 0.32 |  |  | $ | 0.32 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income attributable to MercadoLibre, Inc. |  | $ | 19,950,908 |  |  | $ | 19,950,908 |  |  | $ | 14,057,634 |  |  | $ | 14,057,634 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average of common stock outstanding for Basic earnings per share |  |  | 44,142,076 |  |  |  | 44,142,076 |  |  |  | 44,131,383 |  |  |  | 44,131,383 |
Adjustment for stock options |  |  | — |  |  |  | 5,720 |  |  |  | — |  |  |  | 11,474 |
Adjustment for shares granted under LTRP |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 4,810 |
Adjusted weighted average of common stock outstanding for Diluted earnings per share |  |  | 44,142,076 |  |  |  | 44,147,796 |  |  |  | 44,131,383 |  |  |  | 44,147,667 |
The calculation of diluted net income per share excludes all anti-dilutive shares. During the three-month periods ended March 31, 2012 and 2011, there were no anti-dilutive shares.

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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 2 -URI http://asc.fasb.org/extlink&oid=6920599&loc=d3e1252-109256 Reference 2: 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=6945512&loc=d3e4984-109258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: 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=6920599&loc=d3e1278-109256 Reference 5: 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 6: 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=6880815&loc=d3e20235-122688 + Details
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