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v2.4.1.9

Income Taxes - Summary of Income / Asset Tax Expense (Detail) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Current: |  |  |
Federal | $ 2,120 us-gaap_CurrentFederalTaxExpenseBenefit |  |
Foreign | 66,786,496 us-gaap_CurrentForeignTaxExpenseBenefit | 49,488,472 us-gaap_CurrentForeignTaxExpenseBenefit | 39,371,170 us-gaap_CurrentForeignTaxExpenseBenefit
Deferred: |  |  |
Federal | 465,277 us-gaap_DeferredFederalIncomeTaxExpenseBenefit | 799,166 us-gaap_DeferredFederalIncomeTaxExpenseBenefit | 998,536 us-gaap_DeferredFederalIncomeTaxExpenseBenefit
Foreign | (18,110,844)us-gaap_DeferredForeignIncomeTaxExpenseBenefit | (4,913,379)us-gaap_DeferredForeignIncomeTaxExpenseBenefit | (1,586,024)us-gaap_DeferredForeignIncomeTaxExpenseBenefit
Deferred income tax expense, total | (17,645,567)meli_DeferredIncomeTaxExpense | (4,114,213)meli_DeferredIncomeTaxExpense | (587,488)meli_DeferredIncomeTaxExpense
Income tax expense | 49,143,050 meli_CurrentAndDeferredTaxExpenseBenefit | 45,374,259 meli_CurrentAndDeferredTaxExpenseBenefit | 38,783,682 meli_CurrentAndDeferredTaxExpenseBenefit
Income / asset tax expense, total | 49,143,050 us-gaap_IncomeTaxExpenseBenefit | 45,583,181 us-gaap_IncomeTaxExpenseBenefit | 38,871,379 us-gaap_IncomeTaxExpenseBenefit
Foreign [Member] |  |  |
Deferred: |  |  |
Asset tax expense |  | $ 208,922 us-gaap_OtherTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = us-gaap_ForeignCountryMember | $ 87,697 us-gaap_OtherTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = us-gaap_ForeignCountryMember

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- Definition Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I.7) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Current Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6509736 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section I -Paragraph Question 1-7 + Details
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