MercadoLibre (MELI) 10-Q 8 Nov 13 2013 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2013	Oct. 31, 2013
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Sep-13	'
Document Fiscal Year Focus	'2013	'
Document Fiscal Period Focus	'Q3	'
Entity Registrant Name	'MERCADOLIBRE INC	'
Entity Central Index Key	'0001099590	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	44,152,933

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Sep. 30, 2013	Dec. 31, 2012
Current assets:	'	'
Cash and cash equivalents	$128,096,994	$101,489,002
Short-term investments	91,330,179	93,694,805
Accounts receivable, net	26,621,654	19,837,022
Credit cards receivables, net	37,867,650	35,816,506
Prepaid expenses	4,158,163	2,080,079
Deferred tax assets	14,323,447	11,040,543
Other assets	15,351,008	11,403,218
Total current assets	317,749,095	275,361,175
Non-current assets:	'	'
Long-term investments	69,806,906	85,955,584
Advance for fixed assets	26,167,766	'
Property and equipment, net	80,000,110	37,726,222
Goodwill	57,855,465	60,366,063
Intangible assets, net	6,438,684	7,279,865
Deferred tax assets	5,293,222	5,862,247
Other assets	6,009,997	6,118,120
Total non-current assets	251,572,150	203,308,101
Total assets	569,321,245	478,669,276
Current liabilities:	'	'
Accounts payable and accrued expenses	33,211,973	23,976,613
Funds payable to customers	122,286,835	101,472,662
Salaries and social security payable	23,313,366	19,974,463
Taxes payable	16,187,618	19,210,568
Loans payable and other financial liabilities	18,909,134	84,570
Dividends payable	6,313,869	4,812,396
Total current liabilities	220,222,795	169,531,272
Non-current liabilities:	'	'
Salaries and social security payable	8,555,276	3,452,445
Loans payable and other financial liabilities	23,575	59,493
Deferred tax liabilities	8,535,181	8,975,290
Other liabilities	3,783,877	2,837,150
Total non-current liabilities	20,897,909	15,324,378
Total liabilities	241,120,704	184,855,650
Commitments and contingencies (Note 7)	'	'
Redeemable noncontrolling interest	4,000,000	4,000,000
Equity:	'	'
Common stock, $0.001 par value, 110,000,000 shares authorized, 44,152,933 and 44,150,920 shares issued and outstanding at September 30, 2013 and December 31, 2012, respectively	44,153	44,151
Additional paid-in capital	120,491,485	120,468,759
Retained earnings	275,583,588	218,083,844
Accumulated other comprehensive loss	-71,918,685	-48,783,128
Total Equity	324,200,541	289,813,626
Total Liabilities, Redeemable Noncontrolling Interest and Equity	$569,321,245	$478,669,276

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Statement Of Financial Position [Abstract]	'	'
Common stock, par value	$0.00	$0.00
Common stock, shares authorized	110,000,000	110,000,000
Common stock, shares issued	44,152,933	44,150,920
Common stock, shares outstanding	44,152,933	44,150,920

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Income (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income Statement [Abstract]	'	'	'	'
Net revenues	$123,055,431	$97,266,784	$337,964,538	$269,846,848
Cost of net revenues	-34,144,989	-25,693,605	-93,871,368	-70,682,782
Gross profit	88,910,442	71,573,179	244,093,170	199,164,066
Operating expenses:	'	'	'	'
Product and technology development	-12,074,586	-7,983,301	-31,217,195	-21,703,194
Sales and marketing	-24,175,448	-18,587,486	-67,336,933	-52,820,525
General and administrative	-15,261,345	-11,288,705	-44,119,063	-34,110,996
Total operating expenses	-51,511,379	-37,859,492	-142,673,191	-108,634,715
Income from operations	37,399,063	33,713,687	101,419,979	90,529,351
Other income (expenses):	'	'	'	'
Interest income and other financial gains	2,776,791	2,925,913	8,373,112	8,996,775
Interest expense and other financial losses	-487,496	-312,860	-1,379,516	-864,477
Foreign currency gains (losses)	1,575,592	-193,529	-1,073,255	-477,499
Other losses, net	-42,217	-179,707	-44,557	-190,968
Net income before income / asset tax expense	41,221,733	35,953,504	107,295,763	97,993,182
Income / asset tax expense	-12,075,486	-9,885,607	-30,605,467	-26,893,425
Net income	29,146,247	26,067,897	76,690,296	71,099,757
Less: Net (Loss) Income attributable to Redeemable Noncontrolling Interest	-137,927	24,804	-53,213	42,864
Net income attributable to MercadoLibre, Inc. shareholders	$29,284,174	$26,043,093	$76,743,509	$71,056,893
Basic EPS	'	'	'	'
Basic net income attributable to MercadoLibre, Inc. Shareholders per common share	$0.66	$0.59	$1.73	$1.62
Weighted average of outstanding common shares	44,152,933	44,150,387	44,152,402	44,146,834
Diluted EPS	'	'	'	'
Diluted net income attributable to MercadoLibre, Inc. Shareholders per common share	$0.66	$0.59	$1.73	$1.62
Weighted average of outstanding common shares	44,152,933	44,157,321	44,152,402	44,153,778

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statement Of Income And Comprehensive Income [Abstract]	'	'	'	'
Net income	$29,146,247	$26,067,897	$76,690,296	$71,099,757
Other comprehensive (loss) income, net of income tax:	'	'	'	'
Currency translation adjustment	-7,796,679	-1,258,637	-22,423,839	-8,082,603
Unrealized net (losses) gains on available for sale investments	290,619	104,883	47,848	975,179
Less: reclassification adjustment for gains on available for sale investments included in net income	'	'	-759,565	-924,657
Net change in accumulated other comprehensive loss, net of income tax	-7,506,060	-1,153,754	-23,135,556	-8,032,081
Total Comprehensive Income	21,640,187	24,914,143	53,554,740	63,067,676
Less: Comprehensive (loss) income attributable to Redeemable Noncontrolling Interest	-178,175	76,368	-110,761	325,499
Comprehensive Income attributable to MercadoLibre, Inc. Shareholders	$21,818,362	$24,837,775	$53,665,501	$62,742,177

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Cash Flows (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operations:	'	'
Net income attributable to MercadoLibre, Inc. Shareholders	$76,743,509	$71,056,893
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Net (loss) income attributable to Redeemable Noncontrolling Interest	-53,213	42,864
Net Devaluation Loss in Venezuela	6,420,929	'
Depreciation and amortization	8,593,391	6,412,210
Accrued interest	-3,233,243	-5,713,349
LTRP accrued compensation	9,997,214	3,338,368
Deferred income taxes	-4,006,615	-813,538
Changes in assets and liabilities:	'	'
Accounts receivable	-17,138,968	-3,824,015
Credit Card Receivables	-7,559,739	-18,852,184
Prepaid expenses	-2,297,492	-1,022,894
Other assets	-6,233,513	-2,092,362
Accounts payable and accrued expenses	17,978,834	10,869,830
Funds payable to customers	32,479,237	19,984,595
Other liabilities	2,465,012	930,000
Interest received from investments	8,693,109	3,391,720
Net cash provided by operating activities	122,848,452	83,708,138
Cash flows from investing activities:	'	'
Purchase of investments	-802,270,257	-344,739,785
Proceeds from sale and maturity of investments	803,214,085	320,436,580
Payment for acquired businesses, net of cash acquired	-3,224,162	'
Purchases of intangible assets	'	-1,341,789	[1]
Advance for fixed assets	-26,167,766	'
Purchases of property and equipment	-49,928,150	-11,682,839
Net cash used in investing activities	-78,376,250	-37,327,833
Cash flows from financing activities:	'	'
Loans payable and other financial liabilities	13,523,158	'
Dividends paid	-17,440,135	-13,155,438
Repurchase of Common Stock	-1,012,216	'
Stock options exercised	3,020	5,700
Net cash used in financing activities	-4,926,173	-13,149,738
Effect of exchange rate changes on cash and cash equivalents	-12,938,037	-2,440,392
Net increase in cash and cash equivalents	26,607,992	30,790,175
Cash and cash equivalents, beginning of the period	101,489,002	67,381,677
Cash and cash equivalents, end of the period	$128,096,994	$98,171,852
[1]	(*) Net of financial liabilities, see Note 5 "Office building acquisition agreement in Buenos Aires"

Nature_of_Business

Nature of Business	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Nature of Business	'
	1	Nature of Business
	MercadoLibre, Inc. (“MercadoLibre” or the “Company”) was incorporated in Delaware in October 1999. MercadoLibre is a Latin American e-commerce platform and payments leader. MercadoLibre is an e-commerce enabler whose mission is to build the necessary online and technology tools to allow practically anyone to trade almost anything in Latin America. MercadoLibre enables commerce through its marketplace platform (including online classifieds for motor vehicles, vessels, aircraft, services and real estate), the Latin American largest online marketplace, which allows users to buy and sell in nearly every country in Latin America; through MercadoPago, which enables individuals and businesses to send and receive online payments; through MercadoClics, which facilitates the advertising service to large retailers and brands to promote their product and services on the web; and through MercadoShops which facilitates users to set-up, manage promote their own on-line web-stores, to support MercadoLibre’s mission of enabling e-commerce.
	As of September 30, 2013, the Company, through its wholly-owned subsidiaries, operated online commerce platforms directed towards Argentina, Brazil, Chile, Colombia, Costa Rica, Dominican Republic, Ecuador, Mexico, Panama, Peru, Portugal, Uruguay and Venezuela, and online payments solutions directed towards Argentina, Brazil, Mexico, Venezuela, Chile and Colombia. In addition, the Company operates a real estate classified platform that covers some areas of State of Florida, U.S.A.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Summary of Significant Accounting Policies	'
	2	Summary of Significant Accounting Policies
	Basis of presentation
	The accompanying unaudited interim condensed consolidated financial statements are prepared in conformity with accounting principles generally accepted in the United States of America (U.S. GAAP) and include the accounts of the Company and its subsidiaries.
	These interim condensed consolidated financial statements are stated in U.S. dollars. All intercompany transactions and balances have been eliminated.
	Substantially all revenues and operating costs are generated in the Company’s foreign operations, amounting to approximately 99.6% and 99.5% of the consolidated totals during the nine-month periods ended September 30, 2013 and 2012, respectively. Long-lived assets located in the foreign operations totaled $135,068,130 and $98,569,068 as of September 30, 2013 and December 31, 2012, respectively.
	These interim condensed consolidated financial statements reflect the Company’s consolidated financial position as of September 30, 2013 and December 31, 2012. These financial statements also show the Company’s consolidated statements of income and of comprehensive income for the three and nine-month periods ended September 30, 2013 and 2012, its consolidated statement of cash flows for the nine-month periods ended September 30, 2013 and 2012. These interim condensed consolidated financial statements include all normal recurring adjustments that management believes are necessary to fairly state the Company’s financial position, operating results and cash flows.
	Because all of the disclosures required by U.S. GAAP for annual consolidated financial statements are not included herein, these unaudited interim condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto for the year ended December 31, 2012, contained in the Company’s Annual Report on Form 10-K filed with the Securities and Exchange Commission (“SEC”) on February 28, 2013. The condensed consolidated statements of income, of comprehensive income and of cash flows for the periods presented herein are not necessarily indicative of results expected for any future period.
	Foreign Currency Translation
	All of the Company’s foreign operations have determined the local currency to be their functional currency, except for Venezuela since the year ended December 31, 2010. Accordingly, these foreign subsidiaries translate assets and liabilities from their local currencies into U.S. dollars using period/year-end exchange rates while income and expense accounts are translated at the average exchange rates in effect during the period/year. The resulting translation adjustment is recorded as part of accumulated other comprehensive income (loss). Gains and losses resulting from transactions denominated in non-functional currencies are recognized in earnings.
	According to U.S. GAAP, the Company has transitioned its Venezuelan operations to highly inflationary status as from January 1, 2010 considering the U.S. dollar to be the functional currency for such operation.
	On February 8, 2013, the Government of Venezuela, through the Foreign Exchange Agreement No. 14, has devalued as from February 9, 2013, the official exchange rate from 4.3 to 6.3 Bolivares Fuertes per U.S. dollar. The devaluation required re-measurement of the Company’s Venezuelan subsidiaries’ non-U.S. dollar denominated monetary assets and liabilities as from February 9, 2013.
	In addition, on February 8, 2013, the Government of Venezuela, through Decree No. 9381 (the “Decree”) has created the Organo Superior para la Optimización del Sistema Cambiario (or the “Committee”), a committee that will have the authority to design, plan and execute foreign exchange policies. Finally, on February 9, 2013, the BCV eliminated the SITME, which was a former system that allowed companies limited access to foreign currencies for payments to foreign suppliers.
	On March 19, 2013, the BCV announced the creation of the Sistema Complementario de Administración de Divisas, or SICAD, which will act jointly with the Commission for the Administration of Foreign Exchange Control (CADIVI). In order to operate within this new system, a company should be registered at the Registro Automatizado (Automatized Register, or “RUSAD”). The acquisition of foreign currencies under this new system is organized under an auction process to obtain foreign currencies for payments to foreign suppliers, where the minimum exchange rate to be offered is 6.30 Bolivares Fuertes per U.S. dollar. At the date of these interim condensed consolidated financial statements, the Company has been unable to access the auction process and there is no information available on the details or planned frequency of the SICAD mechanism.
	Accordingly, as of September 30, 2013, the exchange rate used to re-measure the net monetary assets of the Company’s Venezuelan subsidiaries was 6.30 Bolivares Fuertes per U.S. dollar. Moreover, transactions carried out by the Company’s Venezuelan subsidiaries were re-measured at the monthly average exchange rate for the nine months then ended. The SITME rate used to re-measure foreign currency transactions during 2012 was 5.3 Bolivares Fuertes per U.S. dollar. The devaluation of the official exchange rate of the Bolivares Fuertes against the U.S. dollar from 5.3 to 6.3 Bolivares Fuertes per U.S. dollar generated a foreign currency loss amounted to approximately $6.4 million in the first quarter of 2013. The Bolivares Fuertes could lose further value with respect to the U.S. dollar depending on the foreign currency exchange policies that might be adopted by the government of Venezuela in the future.
	Until 2010 the Company was able to obtain U.S. dollars for any purpose, including dividends distribution, using alternative mechanisms other than through the CADIVI. Those U.S. dollars, obtained at a higher exchange rate than the one offered by CADIVI, and held in balance at U.S. bank accounts of its Venezuelan subsidiaries, were used for dividend distributions from its Venezuelan subsidiaries. CADIVI is the only means by which U.S. dollars for dividend distributions can be requested. The Company’s Venezuelan subsidiaries did not request authorization to CADIVI in 2012, neither during the nine months ended September 30, 2013, to acquire U.S. dollars to make dividend distributions. The Company has not distributed dividends from its Venezuelan subsidiaries since 2011.
	The following table sets forth the assets, liabilities and net assets of the Company’s Venezuelan subsidiaries, before intercompany eliminations, as of September 30, 2013 and December 31, 2012 and net revenues for the nine-month periods ended September 30, 2013 and 2012.
			For the nine-month periods ended
			September 30,
			2013			2012
	Venezuelan operations
	Net Revenues		$	55,695,385		$	37,872,351
			September 30,			December 31,
			2013			2012
	Assets			106,529,563			62,938,728
	Liabilities			(53,195,418	)		(22,652,965	)
	Net Assets		$	53,334,145		$	40,285,763
	As of September 30, 2013, net assets (before intercompany eliminations) of the Venezuelan subsidiaries amounted to approximately 16.5% of the consolidated net assets, and cash and investments of the Venezuelan subsidiaries held in local currency in Venezuela amounted to approximately 12.4% of the consolidated cash and investments.
	The Company’s ability to obtain U.S. dollars in Venezuela is negatively affected by the exchange regulations in Venezuela that are described above. In addition, its business and ability to obtain U.S. dollars in Venezuela would be negatively affected by additional material devaluations or the imposition of significant additional and more stringent controls on foreign currency exchange by the Venezuelan government in the future.
	Despite the current difficult macroeconomic environment in Venezuela, the Company continues to actively manage, through its Venezuelan subsidiaries, its investment in and exposure to Venezuela. Based on current operating, political and economic conditions and certain other factors in Venezuela, management currently believes that its business plans and operating strategy in Venezuela will not be materially adversely impacted in the long run.
	Income Tax Holiday in Argentina
	From fiscal year 2008, the Company’s Argentine subsidiary is beneficiary of a software development law. Part of the benefits obtained from being beneficiary of the aforementioned law is a relief of 60% of total income tax determined in each year, until fiscal year 2014.
	Aggregate tax benefit totaled $2,973,762 and $2,530,901 for the three-month periods ended September 30, 2013 and 2012, respectively, while for the nine-month periods ended at such dates amounted to $7,742,787 and $6,656,141, respectively. Aggregate per share effect of the Argentine tax holiday amounted to $0.07 and $0.06 for the three-month periods ended September 30, 2013 and 2012, respectively, while for the nine-month periods ended at such dates amounted to $0.18 and $0.15, respectively.
	In addition, the recently acquired software development company (see Note 4), located in the Province of Cordoba, Argentina, is also beneficiary of the aforementioned income tax holiday, however the total benefit obtained is immaterial.
	If the Company had not been granted the Argentine tax holiday, the Company would have pursued an alternative tax planning strategy and, therefore, the impact of not having this particular benefit would not necessarily be the abovementioned U.S. dollar and per share effect.
	On August 17, 2011, the Argentine government issued a new software development law and on September 9, 2013 the regulatory decree was issued, which established the new requirement to become beneficiary of the new software development law. The Industry Secretary resolution which establishes the mechanism to file the information to obtain the benefits derived from the new software development law is still pending. The new decree establishes compliance requirements with annual incremental ratios related to exports of services and research and development expenses that must be achieved to remain within the tax holiday. The Argentine operation must achieve certain required ratios annually under the new software development law. The current income tax reliefs could decrease, but are not expected to be materially lower than the benefits under the current law. In addition, it would extend its tax holiday, which would otherwise finish in 2014, for an additional five year period, to 2019 and would obtain some other benefits. As of the date of these financial statements Management is evaluating the impact of the new decree.
	Use of estimates
	The preparation of interim condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Estimates are used for, but not limited to accounting for allowance for doubtful accounts, depreciation, amortization, impairment and useful lives of long-lived assets, compensation cost related to cash and share-based compensation, recognition of current and deferred income taxes and contingencies. Actual results could differ from those estimates.
	Recent Accounting Pronouncements
	In March 2013, the Financial Accounting Standards Board (“FASB”) issued “Parent’s Accounting for the Cumulative Translation Adjustment upon Derecognition of Certain Subsidiaries or Groups of Assets within a Foreign Entity or of an Investment in a Foreign Entity a consensus of the FASB Emerging Issues Task Force” clarifying the accounting for the release of cumulative translation adjustment into net income when a parent either sells a part or all of its investment in a foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets that is a nonprofit activity or a business within a foreign entity. The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning on or after December 15, 2013. The Company does not anticipate that this adoption will have a significant impact on its financial position, results of operations or cash flows.

Net_Income_Per_Share

Net Income Per Share	9 Months Ended
	Sep. 30, 2013
Earnings 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 under the Company’s stock based employee compensation plan.
	The following table shows how net income available to common shareholders is allocated using the two-class method, for the three and nine-month periods ended September 30, 2013 and 2012:
			Three Months Ended September 30,
			2013						2012
			Basic			Diluted			Basic			Diluted
	Net income		$	29,146,247		$	29,146,247		$	26,067,897		$	26,067,897
	Net loss (income) attributable to noncontrolling interests			137,927			137,927			(24,804	)		(24,804	)
	Change in redeemable amount of noncontrolling interest			(306,133	)		(306,133	)		184,100			184,100
	Net income attributable to MercadoLibre, Inc. Shareholders corresponding to common stock		$	28,978,041		$	28,978,041		$	26,227,193		$	26,227,193
			Nine Months Ended September 30,
			2013						2012
			Basic			Diluted			Basic			Diluted
	Net income		$	76,690,296		$	76,690,296		$	71,099,757		$	71,099,757
	Net loss (income) attributable to noncontrolling interests			53,213			53,213			(42,864	)		(42,864	)
	Change in redeemable amount of noncontrolling interest			(355,370	)		(355,370	)		321,300			321,300
	Net income attributable to MercadoLibre, Inc. Shareholders corresponding to common stock		$	76,388,139		$	76,388,139		$	71,378,193		$	71,378,193
	Net income per share of common stock is as follows for the three and nine-month periods ended September 30, 2013 and 2012:
			Three Months Ended September 30,
			2013						2012
			Basic			Diluted			Basic			Diluted
	Net income attributable to MercadoLibre, Inc. Shareholders per common share		$	0.66		$	0.66		$	0.59		$	0.59
	Numerator:
	Net income attributable to MercadoLibre, Inc. Shareholders		$	28,978,041		$	28,978,041		$	26,227,193		$	26,227,193
	Denominator:
	Weighted average of common stock outstanding for Basic earnings per share			44,152,933			44,152,933			44,150,387			44,150,387
	Adjustment for stock options			—			—			—			1,975
	Adjustment for shares granted under LTRP			—			—			—			4,959
	Adjusted weighted average of common stock outstanding for Diluted earnings per share			44,152,933			44,152,933			44,150,387			44,157,321
			Nine Months Ended September 30,
			2013						2012
			Basic			Diluted			Basic			Diluted
	Net income attributable to MercadoLibre, Inc. Shareholders per common share		$	1.73		$	1.73		$	1.62		$	1.62
	Numerator:
	Net income attributable to MercadoLibre, Inc. Shareholders		$	76,388,139		$	76,388,139		$	71,378,193		$	71,378,193
	Denominator:
	Weighted average of common stock outstanding for Basic earnings per share			44,152,402			44,152,402			44,146,834			44,146,834
	Adjustment for stock options			—			—			—			1,977
	Adjustment for shares granted under LTRP			—			—			—			4,967
	Adjusted weighted average of common stock outstanding for Diluted earnings per share			44,152,402			44,152,402			44,146,834			44,153,778
	During the three and nine-month periods ended September 30, 2013 and 2012, there were no anti-dilutive shares.

Business_Combinations_Goodwill

Business Combinations, Goodwill and Intangible Assets	9 Months Ended
	Sep. 30, 2013
Text Block [Abstract]	'
Business Combinations, Goodwill and Intangible Assets	'
	4	Business combinations, Goodwill and Intangible assets
	Business combinations
	On March 22, 2013, the Company completed, through its subsidiaries Meli Participaciones S.L. (ETVE) and MercadoLibre S.R.L. (MercadoLibre Argentina) (together referred to as the “Buyer”), the acquisition of the 100% of equity interest in a software development company located and organized under the laws of the Province of Cordoba, Argentina. The objective of the acquisition was to enhance the capabilities of the Company in terms of software development.
	The aggregate purchase price for the acquisition of the 100% of the acquired business was $3,454,497 (settled in Argentine pesos 17,652,480). On such same date, the Buyer paid and agreed to pay the purchase price as follows: i) $2,191,781 in cash; ii) set an escrow amounting to $489,237 for a 24-months period, aiming to cover unexpected liabilities and negative working capital; iii) set an escrow amounting to $547,945 for a 36-months period, aiming to continue the employment relationship of certain key employees; and iv) on June 24, 2013 the Company paid the remaining $225,534 net of certain negative working capital adjustments.
	In addition, the Company incurred in certain direct costs of the business combination which were expensed as incurred.
	The above mentioned escrow for the continuing employment relationship of $547,945 will be expensed over the 36-months period or a lesser period of time if certain other conditions determined in the Selling and Purchase Agreement (SPA) occur. The escrow will be released at the end of such period, together with the accrued interest.
	The Company’s interim condensed consolidated statement of income includes the results of operations of the acquired business as from March 22, 2013. The net revenues and net loss of the acquiree included in the Company’s condensed consolidated statement of income since the acquisition amounted to $511,421 and $25,288, respectively.
	The following table summarizes the definitive purchase price allocation for the acquisition:
	Net assets acquired		$	237,891
	Goodwill			2,668,661
	Purchase price			2,906,552
	Escrow for employment relationship			547,945
	Aggregate price paid		$	3,454,497
	Supplemental pro-forma information required by U.S. GAAP, is impracticable after making every reasonable effort to do so, however, amounts involved are deemed to be immaterial.
	Arising goodwill has been allocated proportionally to each of the segments identified by the Company’s management, considering the synergies expected from this acquisition and it is expected that the acquiree will contribute to the earnings generation process of such segments.
	The Company recognized goodwill for this acquisition based on management expectation that the acquired business will improve the Company’s business.
	Goodwill is not deductible for tax purposes.
	Goodwill and Intangible assets
	The composition of Goodwill and Intangible assets, as of September 30, 2013 and December 31, 2012 was as follows:
			September 30,			December 31,
			2013			2012
			(Unaudited)			(Audited)
	Goodwill		$	57,855,465		$	60,366,063
	Intangible assets with indefinite lives
	- Trademarks			5,220,400			5,326,057
	Amortizable intangible assets
	- Licenses and others			3,360,827			3,829,668
	- Non-compete agreement			1,084,248			1,195,509
	- Customer list			1,644,722			1,708,770
	Total intangible assets		$	11,310,197		$	12,060,004
	Accumulated amortization			(4,871,513	)		(4,780,139	)
	Total intangible assets, net		$	6,438,684		$	7,279,865
	Goodwill
	The changes in the carrying amount of goodwill for the nine-month period ended September 30, 2013 and the year ended December 31, 2012, are as follows:
			Period ended September 30, 2013 (Unaudited)
			Brazil			Argentina			Chile			Mexico			Venezuela			Colombia			Other Countries			Total
	Balance, beginning of period		$	10,706,281		$	18,889,094		$	7,115,211		$	11,404,780		$	4,846,030		$	5,897,136		$	1,507,531		$	60,366,063
	- Business acquisition			1,307,644			659,159			—			186,806			405,637			69,385			40,030			2,668,661
	- Effect of exchange rates changes			(1,047,310	)		(2,956,006	)		(325,508	)		(204,130	)		(47,126	)		(459,034	)		(140,145	)		(5,179,259	)
	Balance, end of the period		$	10,966,615		$	16,592,247		$	6,789,703		$	11,387,456		$	5,204,541		$	5,507,487		$	1,407,416		$	57,855,465
			Year ended December 31, 2012 (Audited)
			Brazil			Argentina			Chile			Mexico			Venezuela			Colombia			Other Countries			Total
	Balance, beginning of year		$	11,663,443		$	21,583,774		$	6,577,459		$	10,621,839		$	4,846,030		$	5,367,526		$	1,433,877		$	62,093,948
	- Effect of exchange rates changes			(957,162	)		(2,694,680	)		537,752			782,941			—			529,610			73,654			(1,727,885	)
	Balance, end of the year		$	10,706,281		$	18,889,094		$	7,115,211		$	11,404,780		$	4,846,030		$	5,897,136		$	1,507,531		$	60,366,063
	Intangible assets subject to amortization
	Intangible assets subject to amortization are comprised of customer lists and user base, trademarks and trade names, non-compete agreements, acquired software licenses and other acquired intangible assets including developed technologies. Aggregate amortization expense for intangible assets totaled $194,114 and $207,374 for the three-month periods ended September 30, 2013 and 2012, respectively, while for the nine-month periods ended at such dates amounted to $631,560 and $669,850, respectively.
	The estimated aggregate amortization expense for each of the four succeeding fiscal years, as of September 30, 2013 is as follows:
	For year ended 12/31/2013		$	143,931
	For year ended 12/31/2014			554,593
	For year ended 12/31/2015			455,846
	For year ended 12/31/2016			63,069
	Thereafter			845
			$	1,218,284

Segment_Reporting

Segment Reporting	9 Months Ended
	Sep. 30, 2013
Segment Reporting [Abstract]	'
Segment Reporting	'
	5	Segment reporting
	Reporting segments are based upon the Company’s internal organizational structure, the manner in which the Company’s operations are managed, the criteria used by management to evaluate the Company’s performance, the availability of separate financial information, and overall materiality considerations.
	Segment reporting is based on geography as the main basis of segment breakdown to reflect the evaluation of the Company’s performance defined by the management. The Company’s segments include Brazil, Argentina, Mexico, Venezuela and other countries (such as Chile, Colombia, Costa Rica, Dominican Republic, Ecuador, Panama, Peru, Portugal, Uruguay and USA).
	Direct contribution consists of net revenues from external customers less direct costs. Direct costs include specific costs of net revenues, sales and marketing expenses, and general and administrative expenses over which segment managers have direct discretionary control, such as advertising and marketing programs, customer support expenses, allowances for doubtful accounts, headcount compensation and third party fees. All corporate related costs have been excluded from the Company’s direct contribution.
	Expenses over which segment managers do not currently have discretionary control, such as certain technology and general and administrative costs are monitored by management through shared cost centers and are not evaluated in the measurement of segment performance.
	The following tables summarize the financial performance of the Company’s reporting segments:
			Three Months Ended September 30, 2013
			Brazil			Argentina			Mexico			Venezuela			Other Countries			Total
	Net revenues		$	52,262,896		$	33,139,321		$	8,143,109		$	23,001,287		$	6,508,818		$	123,055,431
	Direct costs			(30,385,801	)		(18,385,612	)		(5,110,995	)		(7,921,950	)		(2,865,057	)		(64,669,415	)
	Direct contribution			21,877,095			14,753,709			3,032,114			15,079,337			3,643,761			58,386,016
	Operating expenses and indirect costs of net revenues																		(20,986,953	)
	Income from operations																		37,399,063
	Other income (expenses):
	Interest income and other financial gains																		2,776,791
	Interest expense and other financial losses																		(487,496	)
	Foreign currency gain																		1,575,592
	Other losses, net																		(42,217	)
	Net income before income / asset tax expense																	$	41,221,733
			Three Months Ended September 30, 2012
			Brazil			Argentina			Mexico			Venezuela			Other Countries			Total
	Net revenues		$	46,202,033		$	24,122,810		$	6,736,106		$	14,213,460		$	5,992,375		$	97,266,784
	Direct costs			(27,296,613	)		(11,291,054	)		(4,251,146	)		(4,058,735	)		(2,857,274	)		(49,754,822	)
	Direct contribution			18,905,420			12,831,756			2,484,960			10,154,725			3,135,101			47,511,962
	Operating expenses and indirect costs of net revenues																		(13,798,275	)
	Income from operations																		33,713,687
	Other income (expenses):
	Interest income and other financial gains																		2,925,913
	Interest expense and other financial losses																		(312,860	)
	Foreign currency loss																		(193,529	)
	Other losses, net																		(179,707	)
	Net income before income / asset tax expense																	$	35,953,504
			Nine Months Ended September 30, 2013
			Brazil			Argentina			Mexico			Venezuela			Other Countries			Total
	Net revenues		$	151,144,732		$	87,760,904		$	23,756,976		$	55,695,385		$	19,606,541		$	337,964,538
	Direct costs			(89,229,337	)		(48,065,070	)		(14,350,247	)		(20,408,854	)		(8,947,601	)		(181,001,109	)
	Direct contribution			61,915,395			39,695,834			9,406,729			35,286,531			10,658,940			156,963,429
	Operating expenses and indirect costs of net revenues																		(55,543,450	)
	Income from operations																		101,419,979
	Other income (expenses):
	Interest income and other financial gains																		8,373,112
	Interest expense and other financial losses																		(1,379,516	)
	Foreign currency loss																		(1,073,255	)
	Other losses, net																		(44,557	)
	Net income before income / asset tax expense																	$	107,295,763
			Nine Months Ended September 30, 2012
			Brazil			Argentina			Mexico			Venezuela			Other Countries			Total
	Net revenues		$	132,572,544		$	62,800,492		$	19,366,784		$	37,872,351		$	17,234,677		$	269,846,848
	Direct costs			(78,106,262	)		(28,957,465	)		(11,167,356	)		(12,634,983	)		(8,569,958	)		(139,436,024	)
	Direct contribution			54,466,282			33,843,027			8,199,428			25,237,368			8,664,719			130,410,824
	Operating expenses and indirect costs of net revenues																		(39,881,473	)
	Income from operations																		90,529,351
	Other income (expenses):
	Interest income and other financial gains																		8,996,775
	Interest expense and other financial losses																		(864,477	)
	Foreign currency loss																		(477,499	)
	Other losses, net																		(190,968	)
	Net income before income / asset tax expense																		97,993,182
	The following table summarizes the allocation of the long-lived tangible assets based on geography, as of September 30, 2013 and December 31, 2012:
			September 30,			December 31,
			2013			2012
			(Unaudited)			(Audited)
	US long-lived tangible assets		$	9,213,001		$	6,782,077
Other countries long-lived tangible assets
Argentina			31,992,332			16,955,438
Brazil			4,447,486			2,421,618
Mexico			650,607			378,653
Venezuela			30,464,662			8,455,816
Other countries			3,232,022			2,732,620
		$	70,787,109		$	30,944,145
Total long-lived tangible assets		$	80,000,110		$	37,726,222
Long-lived tangible assets acquired:
Office building acquisition agreement in Buenos Aires
In April 2013, the Company acquired three floors or 3,918 square meters in a new office building located in Buenos Aires for a total amount of $18.5 million plus VAT. The price will be paid in Argentine pesos. At the date of this interim condensed consolidated financial statements the Company paid: i) $0.4 million plus VAT in advance; ii) $3.2 million plus VAT at the date of signing of the purchase agreement and iii) five monthly installments starting in June to October 2013, for an aggregate amount of $10.5 million.
As of September 30, 2013, the Company recorded a liability for the unpaid balance of this building acquisition for a total amount of $6.2 million, which will be paid in three monthly installments from October to December 2013.
Office building acquisitions agreement in Caracas
In May 2013, the Company acquired 1,158 square meters, 13 parking spaces and 4 storage spaces, in an office building located in Caracas for a total amount of $20.0 million or BF$126.0 million. The price has been paid in Bolivares Fuertes.
In addition, on September 19, 2013, one of the Company’s Venezuelan subsidiaries entered into a memorandum of understanding to acquire an office property totaling 1,367 square meters, in Caracas, Venezuela. The purchase price of BF$328.2 million, or approximately $52.2 million, was paid in local currency. The Company’s Venezuelan subsidiary is funding a portion of the purchase price with its own funds and the balance of approximately BF$85.1 million, or $13.5 million, pursuant to an unsecured line of credit.
The unsecured line of credit, which has a 12-month term, was obtained from Venezuelan bank at a fixed interest rate of 13% per annum.
As of September 30, 2013, the Company recorded into its interim condensed consolidated balance sheet, an Advance for fixed assets for the 50% of the purchase price as a consequence that the transfer of the property was still pending as of that date, and a bank loan included in current liabilities under the caption “Loans payable and other financial liabilities”.
At the date of these interim condensed consolidated financial statements, the Company has paid the 100% of the purchase price.
The following table summarizes the allocation of the goodwill and intangible assets based on geography, as of September 30, 2013 and December 31, 2012:
		September 30,			December 31,
		2013			2012
		(Unaudited)			(Audited)
US intangible assets		$	13,218		$	21,005
Other countries goodwill and intangible assets
Argentina			17,440,367			20,328,154
Brazil			10,976,514			10,724,007
Mexico			14,593,782			14,644,795
Venezuela			6,953,628			6,595,117
Other countries			14,316,640			15,332,850
		$	64,280,931		$	67,624,923
Total goodwill and intangible assets		$	64,294,149		$	67,645,928
Consolidated net revenues by similar products and services for the three and nine-months ended September 30, 2013 and 2012 were as follows:
Consolidated Net		Three Months Ended September 30,
Revenues		2013			2012
Marketplace		$	86,755,856		$	67,261,723
Non-marketplace (*)		$	36,299,575		$	30,005,061
Total		$	123,055,431		$	97,266,784
Consolidated Net		Nine Months Ended September 30,
Revenues		2013			2012
Marketplace		$	236,386,126		$	189,479,420
Non-marketplace (*)		$	101,578,412		$	80,367,428
Total		$	337,964,538		$	269,846,848
(*)	Includes, among other things, Ad Sales, Real Estate, Motors, Financing Fees, Off-platform Payment Fees and other ancillary services.

Fair_Value_Measurement_of_Asse

Fair Value Measurement of Assets and Liabilities	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Fair Value Measurement of Assets and Liabilities	'
	6	Fair Value Measurement of Assets and Liabilities
	The following table summarizes the Company’s financial assets and liabilities measured at fair value on a recurring basis as of September 30, 2013 and December 31, 2012:
					Quoted Prices in							Quoted Prices in
			Balances as of		active markets for		Significant other			Balances as of		active markets for		Significant other
			September 30,		identical Assets		observable inputs			December 31,		identical Assets		observable inputs
	Description		2013		(Level 1)		(Level 2)			2012		(Level 1)		(Level 2)
			(Unaudited)							(Audited)
	Assets
	Cash and Cash Equivalents:
	Money Market Funds		$	16,980,298	$	16,980,298	$	—		$	23,033,357	$	23,033,357	$	—
	Investments:
	Asset backed securities			—		—		—			18,826,833		—		18,826,833
	Sovereign Debt Securities			36,616,637		36,616,637		—			21,453,141		21,453,141		—
	Corporate Debt Securities			44,810,908		41,739,786		3,071,122			51,991,294		51,991,294		—
	Total Financial Assets		$	98,407,843	$	95,336,721	$	3,071,122		$	115,304,625	$	96,477,792	$	18,826,833
	As of September 30, 2013, the Company’s financial assets valued at fair value consisted of assets valued using i) Level 1 inputs: unadjusted quoted prices in active markets (Level 1 instrument valuations are obtained from observable inputs that reflect quoted prices (unadjusted) for identical assets in active markets); and ii) Level 2 inputs, which are obtained from readily-available pricing sources for comparable instruments. As of September 30, 2013, the Company did not have any assets without market values that would require a high level of judgment to determine fair value (Level 3).
	The unrealized net gains on short term and long term investments are reported as a component of accumulated other comprehensive income. The Company does not anticipate any significant realized losses associated with those investments in excess of the Company’s historical cost.
	In addition, as of September 30, 2013 and December 31, 2012, the Company had $79,709,541 and $87,379,121 of short-term investments which consisted of time deposits. Those investments are accounted for at amortized cost which, as of September 30, 2013 and December 31, 2012, approximates their fair values.
	As of September 30, 2013 and December 31, 2012, the carrying value of the Company’s financial assets and liabilities measured at amortized cost approximated their fair value because of its short term maturity. These assets and liabilities included cash and cash equivalents (excluding money markets funds), accounts receivables, credit card receivables, funds payable to customers, other receivables, other assets, accounts payables, social security payables, taxes payables, loans payable and provisions and other liabilities.
	At the end of June of 2013, the Company sold the majority of their available-for-sale investments, so the net realized gain included in the Interim Condensed Consolidated Statement of Income amounted to $518,713 and the reclassification out of the Other Comprehensive Income to Net Income was a loss of $871,702. Also, a substantial portion of the proceeds from those sales was subsequently invested in different available-for-sale investments.
	The following table summarizes the fair value level for those financial assets and liabilities of the Company measured at amortized cost as of September 30, 2013 and December 31, 2012:
			Balances as of		Significant other		Balances as of			Significant other
			September 30,		observable inputs		December 31,			observable inputs
			2013		(Level 2)		2012			(Level 2)
			(Unaudited)				(Audited)
	Assets
	Time Deposits		$	79,709,541		79,709,541	$	87,379,121			87,379,121
	Accounts and Credit Cards receivable			64,489,304		64,489,304		55,653,528			55,653,528
	Prepaid expenses and Other assets			25,519,167		25,519,167		19,601,417			19,601,417
	Total Assets		$	169,718,012	$	169,718,012	$	162,634,066		$	162,634,066
	Liabilities
	Accounts and funds payable		$	155,498,808	$	155,498,808	$	125,449,275		$	125,449,275
	Salaries and social security payable			17,026,016		17,026,016		14,994,186			14,994,186
	Tax payable			16,187,618		16,187,618		19,210,568			19,210,568
	Dividends payable			6,313,869		6,313,869		4,812,396			4,812,396
	Other liabilities			22,716,586		22,716,586		2,981,212			2,981,212
	Total Liabilities		$	217,742,897	$	217,742,897	$	167,447,637		$	167,447,637
	As of September 30, 2013 and December 31, 2012, the Company held no direct investments in auction rate securities, collateralized debt obligations or structured investment vehicles. As of September 30, 2013 and December 31, 2012, the Company does not have any non-financial assets or liabilities measured at fair value.
	As of September 30, 2013 and December 31, 2012, the fair value of money market funds, and of short and long-term investments classified as available for sale securities, are as follows:
			September 30, 2013 (Unaudited)
			Cost		Gross		Gross			Estimated
					Unrealized		Unrealized			Fair Value
					Gains		Losses (1)
	Cash and cash equivalents
	Money Market Funds		$	16,980,432	$	2,837	$	(2,971	)	$	16,980,298
	Total Cash and cash equivalents		$	16,980,432	$	2,837	$	(2,971	)	$	16,980,298
	Short-term investments
	Sovereign Debt Securities		$	3,960,902	$	2,333	$	—		$	3,963,235
	Corporate Debt Securities			7,658,163		1,890		(2,649	)		7,657,404
	Total Short-term investments		$	11,619,065	$	4,223	$	(2,649	)	$	11,620,639
	Long-term investments
	Sovereign Debt Securities		$	32,619,930	$	33,472	$	—		$	32,653,402
	Corporate Debt Securities			37,124,147		78,779		(49,422	)		37,153,504
	Total Long-term investments		$	69,744,077	$	112,251	$	(49,422	)	$	69,806,906
	Total		$	98,343,574	$	119,311	$	(55,042	)	$	98,407,843
			December 31, 2012 (Audited)
			Cost		Gross		Gross			Estimated
					Unrealized		Unrealized			Fair Value
					Gains		Losses (1)
	Cash and cash equivalents
	Money Market Funds		$	23,030,970	$	3,400	$	(1,013	)	$	23,033,357
	Total Cash and cash equivalents		$	23,030,970	$	3,400	$	(1,013	)	$	23,033,357
	Short-term investments
Corporate Debt Securities		$	6,314,939	$	1,032	$	(287	)	$	6,315,684
Total Short-term investments		$	6,314,939	$	1,032	$	(287	)	$	6,315,684
Long-term investments
Sovereign Debt Securities		$	21,153,227	$	299,914	$	—		$	21,453,141
Corporate Debt Securities			45,089,831		630,807		(45,028	)		45,675,610
Asset Backed Securities (2)			18,568,996		301,544		(43,707	)		18,826,833
Total Long-term investments		$	84,812,054	$	1,232,265	$	(88,735	)	$	85,955,584
Total		$	114,157,963	$	1,236,697	$	(90,035	)	$	115,304,625
-1	Unrealized losses from securities are primarily attributable to market price movements. Management does not believe any remaining unrealized losses represent other-than-temporary impairments based on our evaluation of available evidence including the credit rating of the investments, as of September 30, 2013 and December 31, 2012.
-2	Asset backed securities have investment grade credit ratings.
Most of the Sovereign Debt Securities are U.S. Treasury Notes, with no significant risk associated.
As of September 30, 2013, the estimated fair values of short-term and long-term investments classified by its contractual maturities were as follows:
One year or less		$	28,600,937
One year to two years			28,128,792
Two years to three years			27,237,220
Three years to four years			9,530,651
Four years to five years			4,910,243
More than five years			—
Total		$	98,407,843

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2013
Commitments And Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	7	Commitments and Contingencies
	Litigation and Other Legal Matters
	The Company is subject to certain contingent liabilities with respect to existing or potential claims, lawsuits and other proceedings. The Company accrues liabilities when it considers probable that future costs will be incurred and such costs can be reasonably estimated. The proceeding-related reserve is based on developments to date and historical information related to actions filed against the Company. As of September 30, 2013, the Company had established reserves for proceeding-related contingencies of $3,536,947 to cover legal actions against the Company. In addition, as of September 30, 2013 the Company and its subsidiaries are subject to certain legal actions considered by the Company’s management and its legal counsels to be reasonably possible for an aggregate amount up to $4,237,413. No loss amount has been accrued for such legal actions of which the most significant ones (individually or in the aggregate) are described below.
	As of September 30, 2013, 623 legal actions were pending in the Brazilian ordinary courts. In addition, as of September 30, 2013, there were 3,371 cases still pending in Brazilian consumer courts. Filing and pursuing of an action before Brazilian consumer courts do not require the assistance of a lawyer. In most of the cases filed against the Company, the plaintiffs asserted that the Company was responsible for fraud committed against them, or responsible for damages suffered when purchasing an item on the Company’s website, when using MercadoPago, or when the Company invoiced them.
	On August 25, 2010, Citizen Watch do Brasil S/A, or Citizen, sued certain of the Company’s Brazilian subsidiaries MercadoLivre.com Atividades de Internet Ltda. and eBazar.com.br Ltda. in the 31st Central Civil Court State of São Paulo, Brazil. Citizen alleged that the Brazilian subsidiaries were infringing Citizen’s trademarks as a result of users selling allegedly counterfeit Citizen watches through the Brazilian page of the Brazilian subsidiaries’ website. Citizen sought an order enjoining the sale of Citizen-branded watches on the Brazilian subsidiaries’ Marketplace with a $6,000 daily non-compliance penalty. On September 23, 2010, the Brazilian subsidiaries were summoned of an injunction granted to prohibit the offer of Citizen products on its platform, but the penalty was established at $6,000. On September 26, 2010, the Brazilian subsidiaries presented their defense and appealed the decision of the injunction relief to the State Court of Appeals of São Paulo on September 27, 2010. On October 22, 2010 the injunction granted to Citizen was suspended. On March 23, 2011, the Company’s appeal regarding the injunction granted to Citizen was ruled in favor of the Brazilian subsidiaries. On May 4, 2011, Citizen presented a motion to clarify the decision but it was dismissed on March 14, 2012. On May 28, 2012, the Plaintiff filed a special recourse related to the injunction relief to the State Court of Appeals, and the Brazilian subsidiaries presented their defense on August 16, 2012 which was not admitted. In September 2012, the Plaintiff filed a legal action against the Brazilian subsidiaries with same arguments alleged in the injunction request and seeking for compensatory and statutory damages and defenses were presented on March 20, 2013. On January 9, 2013, Citizen appealed the Brazilian Superior Court of Justice (Superior Tribunal de Justiça). On March 1, 2013, the Company presented its response to that appeal. On August 27, 2013, the Brazilian Superior Court of Justice ruled against Citizen’s appeal. The Superior Court of Justice ruled that the Brazilian subsidiaries were not responsible for alleged infringement of intellectual property rights by its users and that they should comply with the “notice and take down” procedure it already had in place. On October 4, 2013, Citizen presented a motion to clarify the above mentioned decision issued by the Brazilian Superior Court of Justice and such motion ruling is still pending. As of September 30, 2013 the lower court’s ruling was still pending. In the opinion of the Brazilian subsidiaries’ management and its legal counsel the risk of loss is reasonably possible but not probable.
	State of Rio de Janeiro Customer Service Level Claim
	On August 19, 2011, a state prosecutor of the State of Rio de Janeiro, Brazil presented a claim against the Company’s Brazilian subsidiary. The state prosecutor alleges that the Brazilian subsidiary should improve its customer service level and provide (among other things) a telephone number for customer support and requested an injunction against our Brazilian subsidiary. On August 23, 2011, the Judge of the first instance court denied the aforementioned injunction. On December 7, 2011, the Company was notified of the lawsuit. On March 1, 2012 the Company presented its defense. On August 29, 2012 a conciliatory hearing was held, but no agreement was reached. On October 22, 2012, the Lower Court Judges ruled in favor of MercadoLivre and dismissed the claim against MercadoLivre. The Public Prosecutor appealed the decision and MercadoLivre presented its defense on December 12, 2012. On April 9, 2013, the State Court of Appeals ruled in favor of the Company confirming the dismissal of the claim. On May 28, 2013 the decision was appealed by the state prosecutor to the Brazilian Superior Court of Justice and the Company presented its response on July 2, 2013. As of September 30, 2013, the Brazilian Superior Court of Justice ruling was still pending. In the opinion of the Company’s management and its legal counsel the risk of loss is remote.
	City of São Paulo Tax Claims
	In September 2012 São Paulo tax authorities have asserted taxes and fines against our Brazilian subsidiary related to our Brazilian subsidiary’s activities in São Paulo for the period from 2007 through 2010. As of September 30, 2013 those asserted taxes and fines amounts to approximately R$40.3 million or $18.1 million according to the exchange rate as of September 30, 2013. In January 2005 the Company moved our operations to Santana de Parnaíba City, Brazil and began paying taxes to that jurisdiction and therefore the Company believes that has strong defenses to the claims of the São Paulo authorities with respect to this period. On July 27, 2012, the Company presented administrative defenses against the authorities’ claim. On February 2, 2013, São Paulo tax authorities ruled against the Brazilian subsidiary maintaining claimed taxes and fines. On March 4, 2013, the Company presented an appeal to the Conselho Municipal de Tributos or São Paulo Municipal Council of Taxes. On August 23, 2013, the Câmaras Reunidas do Egrégio Conselho Municipal de Tributos or Superior Chamber of the São Paulo Municipal Council of Taxes ruled against the Company’s appeal. On September 5, 2013, the Company presented a special appeal to the Superior Chamber of the São Paulo Municipal Council of Taxes. On October 18, 2013, the mentioned appeal was denied to our Brazilian subsidiary and confirmed the fines. With this decision the administrative stage is finished and the Company will contest this tax assessment and fines in a judicial stage. The Company’s management and its legal counsel believe that the risk of loss is remote, and as a result, the Company has not reserved any provisions for this claim.
	Other third parties have from time to time claimed, and others may claim in the future, that the Company was responsible for fraud committed against them, or that the Company has infringed their intellectual property rights. The underlying laws with respect to the potential liability of online intermediaries like the Company are unclear in the jurisdictions where the Company operates. Management believes that additional lawsuits alleging that the Company has violated copyright or trademark laws will be filed against the Company in the future.
	Intellectual property and regulatory claims, whether meritorious or not, are time consuming and costly to resolve, require significant amounts of management time, could require expensive changes in the Company’s methods of doing business, or could require the Company to enter into costly royalty or licensing agreements. The Company may be subject to patent disputes, and be subject to patent infringement claims as the Company’s services expand in scope and complexity. In particular, the Company may face additional patent infringement claims involving various aspects of the payments businesses.
	From time to time, the Company is involved in other disputes or regulatory inquiries that arise in the ordinary course of business. The number and significance of these disputes and inquiries are increasing as the Company’s business expands and the Company grows larger.

Long_Term_Retention_Plan

Long Term Retention Plan	9 Months Ended
	Sep. 30, 2013
Compensation And Retirement Disclosure [Abstract]	'
Long Term Retention Plan	'
	8	Long Term Retention Plan
	In May 2013 the board of directors, upon the recommendation of the Compensation Committee, approved certain amendments to the 2009, 2010, 2011 and 2012 Long-Term Retention Plans (the Amended LTRPs), to give the Company (through the approval of the Compensation Committee) the option to pay the compensation due under the Amended LTRPs in cash, common stock or a combination thereof. The company has granted the right to any Amended LTRP participant to request settlement in cash. The Amended LTRPs have been considered to be a substantive liability and classified accordingly in the balance sheet.
	On September 27, 2013, the Board of Directors, upon the recommendation of the Compensation Committee approved the 2013 employee retention programs (“2013 LTRP”). The awards under 2013 LTRP are payable in cash, common stock or a combination thereof, in addition to the annual salary and bonus of each employee. The Company has granted the right to any LTRP participant to request settlement in cash.
	The 2013 LTRP will be paid in 6 equal annual quotas (16.67% each) commencing on March 31, 2014. Each quota is calculated as follows:
		•		8.333% of the amount is calculated in nominal terms (“the nominal basis share”),
		•		8.333% is adjusted by multiplying the nominal amount by the average closing stock price for the last 60 trading days of the year previous to the payment date and divided by the average closing stock price for the last 60 trading days of 2012. The average closing stock price for the 2013 LTRP amounted to $79.57 (“the variable share”).
	The following table summarizes the 2009, 2010, 2011, 2012 and 2013 Long Term Retention Plans (LTRP) accrued compensation expense for the nine and three-month periods ended September 30, 2013 and 2012:
			Nine Months Ended September 30,				Three Months Ended September 30,
			2013		2012		2013		2012
	LTRP 2009		$	1,631,152	$	389,064	$	513,474	$	209,140
	LTRP 2010			1,485,480		768,728		467,543		235,811
	LTRP 2011			1,497,996		970,498		491,283		283,622
	LTRP 2012			1,713,029		1,199,042		557,813		406,953
	LTRP 2013			3,669,558		—		2,657,114		—

Cash_Dividend_Distribution

Cash Dividend Distribution	9 Months Ended
	Sep. 30, 2013
Text Block [Abstract]	'
Cash Dividend Distribution	'
	9	Cash dividend distribution
	On January 15, 2013, the Company paid the 2012 last quarterly cash dividend distribution of $4.8 million (or $0.109 per share) to stockholders of record as of the close of business on December 31, 2012.
	On February 22, April 30 and July 30, 2013 the board of directors approved the first, second and third, respectively, 2013 quarterly cash dividend of $6.3 million (or $0.143 per share) on our outstanding shares of common stock. The dividends have been paid on April 15, July 15 and October 15, 2013, respectively, to stockholders of record as of the close of business on March 29, June 28 and September 30, 2013, respectively.
	Finally, on October 31, 2013, the board of directors declared the fourth 2013 quarterly cash dividend of $6.3 million (or $0.143 per share), payable to the holders of the Company’s common stock. This quarterly cash dividend will be paid on January 15, 2014 to stockholders of record as of the close of business on December 31, 2013.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Basis of Presentation	'
	Basis of presentation
	The accompanying unaudited interim condensed consolidated financial statements are prepared in conformity with accounting principles generally accepted in the United States of America (U.S. GAAP) and include the accounts of the Company and its subsidiaries.
	These interim condensed consolidated financial statements are stated in U.S. dollars. All intercompany transactions and balances have been eliminated.
	Substantially all revenues and operating costs are generated in the Company’s foreign operations, amounting to approximately 99.6% and 99.5% of the consolidated totals during the nine-month periods ended September 30, 2013 and 2012, respectively. Long-lived assets located in the foreign operations totaled $135,068,130 and $98,569,068 as of September 30, 2013 and December 31, 2012, respectively.
	These interim condensed consolidated financial statements reflect the Company’s consolidated financial position as of September 30, 2013 and December 31, 2012. These financial statements also show the Company’s consolidated statements of income and of comprehensive income for the three and nine-month periods ended September 30, 2013 and 2012, its consolidated statement of cash flows for the nine-month periods ended September 30, 2013 and 2012. These interim condensed consolidated financial statements include all normal recurring adjustments that management believes are necessary to fairly state the Company’s financial position, operating results and cash flows.
	Because all of the disclosures required by U.S. GAAP for annual consolidated financial statements are not included herein, these unaudited interim condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto for the year ended December 31, 2012, contained in the Company’s Annual Report on Form 10-K filed with the Securities and Exchange Commission (“SEC”) on February 28, 2013. The condensed consolidated statements of income, of comprehensive income and of cash flows for the periods presented herein are not necessarily indicative of results expected for any future period.
Foreign Currency Translation	'
	Foreign Currency Translation
	All of the Company’s foreign operations have determined the local currency to be their functional currency, except for Venezuela since the year ended December 31, 2010. Accordingly, these foreign subsidiaries translate assets and liabilities from their local currencies into U.S. dollars using period/year-end exchange rates while income and expense accounts are translated at the average exchange rates in effect during the period/year. The resulting translation adjustment is recorded as part of accumulated other comprehensive income (loss). Gains and losses resulting from transactions denominated in non-functional currencies are recognized in earnings.
	According to U.S. GAAP, the Company has transitioned its Venezuelan operations to highly inflationary status as from January 1, 2010 considering the U.S. dollar to be the functional currency for such operation.
	On February 8, 2013, the Government of Venezuela, through the Foreign Exchange Agreement No. 14, has devalued as from February 9, 2013, the official exchange rate from 4.3 to 6.3 Bolivares Fuertes per U.S. dollar. The devaluation required re-measurement of the Company’s Venezuelan subsidiaries’ non-U.S. dollar denominated monetary assets and liabilities as from February 9, 2013.
	In addition, on February 8, 2013, the Government of Venezuela, through Decree No. 9381 (the “Decree”) has created the Organo Superior para la Optimización del Sistema Cambiario (or the “Committee”), a committee that will have the authority to design, plan and execute foreign exchange policies. Finally, on February 9, 2013, the BCV eliminated the SITME, which was a former system that allowed companies limited access to foreign currencies for payments to foreign suppliers.
	On March 19, 2013, the BCV announced the creation of the Sistema Complementario de Administración de Divisas, or SICAD, which will act jointly with the Commission for the Administration of Foreign Exchange Control (CADIVI). In order to operate within this new system, a company should be registered at the Registro Automatizado (Automatized Register, or “RUSAD”). The acquisition of foreign currencies under this new system is organized under an auction process to obtain foreign currencies for payments to foreign suppliers, where the minimum exchange rate to be offered is 6.30 Bolivares Fuertes per U.S. dollar. At the date of these interim condensed consolidated financial statements, the Company has been unable to access the auction process and there is no information available on the details or planned frequency of the SICAD mechanism.
	Accordingly, as of September 30, 2013, the exchange rate used to re-measure the net monetary assets of the Company’s Venezuelan subsidiaries was 6.30 Bolivares Fuertes per U.S. dollar. Moreover, transactions carried out by the Company’s Venezuelan subsidiaries were re-measured at the monthly average exchange rate for the nine months then ended. The SITME rate used to re-measure foreign currency transactions during 2012 was 5.3 Bolivares Fuertes per U.S. dollar. The devaluation of the official exchange rate of the Bolivares Fuertes against the U.S. dollar from 5.3 to 6.3 Bolivares Fuertes per U.S. dollar generated a foreign currency loss amounted to approximately $6.4 million in the first quarter of 2013. The Bolivares Fuertes could lose further value with respect to the U.S. dollar depending on the foreign currency exchange policies that might be adopted by the government of Venezuela in the future.
	Until 2010 the Company was able to obtain U.S. dollars for any purpose, including dividends distribution, using alternative mechanisms other than through the CADIVI. Those U.S. dollars, obtained at a higher exchange rate than the one offered by CADIVI, and held in balance at U.S. bank accounts of its Venezuelan subsidiaries, were used for dividend distributions from its Venezuelan subsidiaries. CADIVI is the only means by which U.S. dollars for dividend distributions can be requested. The Company´s Venezuelan subsidiaries did not request authorization to CADIVI in 2012, neither during the nine months ended September 30, 2013, to acquire U.S. dollars to make dividend distributions. The Company has not distributed dividends from its Venezuelan subsidiaries since 2011.
	The following table sets forth the assets, liabilities and net assets of the Company’s Venezuelan subsidiaries, before intercompany eliminations, as of September 30, 2013 and December 31, 2012 and net revenues for the nine-month periods ended September 30, 2013 and 2012.
		For the nine-month periods ended
		September 30,
		2013			2012
	Venezuelan operations
	Net Revenues	$	55,695,385		$	37,872,351
		September 30,			December 31,
		2013			2012
	Assets		106,529,563			62,938,728
	Liabilities		(53,195,418	)		(22,652,965	)
	Net Assets	$	53,334,144		$	40,285,763
	As of September 30, 2013, net assets (before intercompany eliminations) of the Venezuelan subsidiaries amounted to approximately 16.5% of the consolidated net assets, and cash and investments of the Venezuelan subsidiaries held in local currency in Venezuela amounted to approximately 12.4% of the consolidated cash and investments.
	The Company’s ability to obtain U.S. dollars in Venezuela is negatively affected by the exchange regulations in Venezuela that are described above. In addition, its business and ability to obtain U.S. dollars in Venezuela would be negatively affected by additional material devaluations or the imposition of significant additional and more stringent controls on foreign currency exchange by the Venezuelan government in the future.
	Despite the current difficult macroeconomic environment in Venezuela, the Company continues to actively manage, through its Venezuelan subsidiaries, its investment in and exposure to Venezuela. Based on current operating, political and economic conditions and certain other factors in Venezuela, management currently believes that its business plans and operating strategy in Venezuela will not be materially adversely impacted in the long run.
Income Tax Holiday in Argentina	'
	Income Tax Holiday in Argentina
	From fiscal year 2008, the Company’s Argentine subsidiary is beneficiary of a software development law. Part of the benefits obtained from being beneficiary of the aforementioned law is a relief of 60% of total income tax determined in each year, until fiscal year 2014.
	Aggregate tax benefit totaled $2,973,762 and $2,530,901 for the three-month periods ended September 30, 2013 and 2012, respectively, while for the nine-month periods ended at such dates amounted to $7,742,787 and $6,656,141, respectively. Aggregate per share effect of the Argentine tax holiday amounted to $0.07 and $0.06 for the three-month periods ended September 30, 2013 and 2012, respectively, while for the nine-month periods ended at such dates amounted to $0.18 and $0.15, respectively.
	In addition, the recently acquired software development company (see Note 4), located in the Province of Cordoba, Argentina, is also beneficiary of the aforementioned income tax holiday, however the total benefit obtained is immaterial.
	If the Company had not been granted the Argentine tax holiday, the Company would have pursued an alternative tax planning strategy and, therefore, the impact of not having this particular benefit would not necessarily be the abovementioned U.S. dollar and per share effect.
	On August 17, 2011, the Argentine government issued a new software development law and on September 9, 2013 the regulatory decree was issued, which established the new requirement to become beneficiary of the new software development law. The Industry Secretary resolution which establishes the mechanism to file the information to obtain the benefits derived from the new software development law is still pending. The new decree establishes compliance requirements with annual incremental ratios related to exports of services and research and development expenses that must be achieved to remain within the tax holiday. The Argentine operation must achieve certain required ratios annually under the new software development law. The current income tax reliefs could decrease, but are not expected to be materially lower than the benefits under the current law. In addition, it would extend its tax holiday, which would otherwise finish in 2014, for an additional five year period, to 2019 and would obtain some other benefits. As of the date of these financial statements Management is evaluating the impact of the new decree.
Use of Estimates	'
	Use of estimates
	The preparation of interim condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Estimates are used for, but not limited to accounting for allowance for doubtful accounts, depreciation, amortization, impairment and useful lives of long-lived assets, compensation cost related to cash and share-based compensation, recognition of current and deferred income taxes and contingencies. Actual results could differ from those estimates.
Recent Accounting Pronouncements	'
	Recent Accounting Pronouncements
	In March 2013, the Financial Accounting Standards Board (“FASB”) issued “Parent’s Accounting for the Cumulative Translation Adjustment upon Derecognition of Certain Subsidiaries or Groups of Assets within a Foreign Entity or of an Investment in a Foreign Entity a consensus of the FASB Emerging Issues Task Force” clarifying the accounting for
	the release of cumulative translation adjustment into net income when a parent either sells a part or all of its investment in a foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets that is a nonprofit activity or a business within a foreign entity. The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning on or after December 15, 2013. The Company does not anticipate that this adoption will have a significant impact on its financial position, results of operations or cash flows.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Assets, Liabilities and Net Assets of Company's Venezuelan Subsidiaries	'
	The following table sets forth the assets, liabilities and net assets of the Company’s Venezuelan subsidiaries, before intercompany eliminations, as of September 30, 2013 and December 31, 2012 and net revenues for the nine-month periods ended September 30, 2013 and 2012.
		For the nine-month periods ended
		September 30,
		2013			2012
	Venezuelan operations
	Net Revenues	$	55,695,385		$	37,872,351
		September 30,			December 31,
		2013			2012
	Assets		106,529,563			62,938,728
	Liabilities		(53,195,418	)		(22,652,965	)
	Net Assets	$	53,334,145		$	40,285,763

Net_Income_Per_Share_Tables

Net Income Per Share (Tables)	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Allocation of Net Income Available to Common Shareholders using Two-Class Method	'
	The following table shows how net income available to common shareholders is allocated using the two-class method, for the three and nine-month periods ended September 30, 2013 and 2012:
		Three Months Ended September 30,
		2013						2012
		Basic			Diluted			Basic			Diluted
	Net income	$	29,146,247		$	29,146,247		$	26,067,897		$	26,067,897
	Net loss (income) attributable to noncontrolling interests		137,927			137,927			(24,804	)		(24,804	)
	Change in redeemable amount of noncontrolling interest		(306,133	)		(306,133	)		184,100			184,100
	Net income attributable to MercadoLibre, Inc. Shareholders corresponding to common stock	$	28,978,041		$	28,978,041		$	26,227,193		$	26,227,193
		Nine Months Ended September 30,
		2013						2012
		Basic			Diluted			Basic			Diluted
	Net income	$	76,690,296		$	76,690,296		$	71,099,757		$	71,099,757
	Net loss (income) attributable to noncontrolling interests		53,213			53,213			(42,864	)		(42,864	)
	Change in redeemable amount of noncontrolling interest		(355,370	)		(355,370	)		321,300			321,300
	Net income attributable to MercadoLibre, Inc. Shareholders corresponding to common stock	$	76,388,139		$	76,388,139		$	71,378,193		$	71,378,193
Net Income Per Share of Common Stock	'
	Net income per share of common stock is as follows for the three and nine-month periods ended September 30, 2013 and 2012:
		Three Months Ended September 30,
		2013						2012
		Basic			Diluted			Basic			Diluted
	Net income attributable to MercadoLibre, Inc. Shareholders per common share	$	0.66		$	0.66		$	0.59		$	0.59
	Numerator:
	Net income attributable to MercadoLibre, Inc. Shareholders	$	28,978,041		$	28,978,041		$	26,227,193		$	26,227,193
	Denominator:
	Weighted average of common stock outstanding for Basic earnings per share		44,152,933			44,152,933			44,150,387			44,150,387
	Adjustment for stock options		—			—			—			1,975
	Adjustment for shares granted under LTRP		—			—			—			4,959
	Adjusted weighted average of common stock outstanding for Diluted earnings per share		44,152,933			44,152,933			44,150,387			44,157,321
		Nine Months Ended September 30,
		2013						2012
		Basic			Diluted			Basic			Diluted
	Net income attributable to MercadoLibre, Inc. Shareholders per common share	$	1.73		$	1.73		$	1.62		$	1.62
	Numerator:
	Net income attributable to MercadoLibre, Inc. Shareholders	$	76,388,139		$	76,388,139		$	71,378,193		$	71,378,193
	Denominator:
	Weighted average of common stock outstanding for Basic earnings per share		44,152,402			44,152,402			44,146,834			44,146,834
	Adjustment for stock options		—			—			—			1,977
	Adjustment for shares granted under LTRP		—			—			—			4,967
	Adjusted weighted average of common stock outstanding for Diluted earnings per share		44,152,402			44,152,402			44,146,834			44,153,778

Business_Combinations_Goodwill1

Business Combinations, Goodwill and Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2013
Text Block [Abstract]	'
Preliminary Purchase Price Allocation for Acquisition	'
	The following table summarizes the definitive purchase price allocation for the acquisition:
	Net assets acquired	$	237,891
	Goodwill		2,668,661
	Purchase price		2,906,552
	Escrow for employment relationship		547,945
	Aggregate price paid	$	3,454,497
Composition of Goodwill and Intangible Assets	'
	The composition of Goodwill and Intangible assets, as of September 30, 2013 and December 31, 2012 was as follows:
		September 30,			December 31,
		2013			2012
		(Unaudited)			(Audited)
	Goodwill	$	57,855,465		$	60,366,063
	Intangible assets with indefinite lives
	- Trademarks		5,220,400			5,326,057
	Amortizable intangible assets
	- Licenses and others		3,360,827			3,829,668
	- Non-compete agreement		1,084,248			1,195,509
	- Customer list		1,644,722			1,708,770
	Total intangible assets	$	11,310,197		$	12,060,004
	Accumulated amortization		(4,871,513	)		(4,780,139	)
	Total intangible assets, net	$	6,438,684		$	7,279,865
Table Showing Changes in Carrying Amount of Goodwill	'
	The changes in the carrying amount of goodwill for the nine-month period ended September 30, 2013 and the year ended December 31, 2012, are as follows:
		Period ended September 30, 2013 (Unaudited)
		Brazil			Argentina			Chile			Mexico			Venezuela			Colombia			Other Countries			Total
	Balance, beginning of period	$	10,706,281		$	18,889,094		$	7,115,211		$	11,404,780		$	4,846,030		$	5,897,136		$	1,507,531		$	60,366,063
	- Business acquisition		1,307,644			659,159			—			186,806			405,637			69,385			40,030			2,668,661
	- Effect of exchange rates changes		(1,047,310	)		(2,956,006	)		(325,508	)		(204,130	)		(47,126	)		(459,034	)		(140,145	)		(5,179,259	)
	Balance, end of the period	$	10,966,615		$	16,592,247		$	6,789,703		$	11,387,456		$	5,204,541		$	5,507,487		$	1,407,416		$	57,855,465
		Year ended December 31, 2012 (Audited)
		Brazil			Argentina			Chile			Mexico			Venezuela			Colombia			Other Countries			Total
	Balance, beginning of year	$	11,663,443		$	21,583,774		$	6,577,459		$	10,621,839		$	4,846,030		$	5,367,526		$	1,433,877		$	62,093,948
	- Effect of exchange rates changes		(957,162	)		(2,694,680	)		537,752			782,941			—			529,610			73,654			(1,727,885	)
	Balance, end of the year	$	10,706,281		$	18,889,094		$	7,115,211		$	11,404,780		$	4,846,030		$	5,897,136		$	1,507,531		$	60,366,063
Estimated Aggregate Amortization Expense	'
	The estimated aggregate amortization expense for each of the four succeeding fiscal years, as of September 30, 2013 is as follows:
	For year ended 12/31/2013	$	143,931
	For year ended 12/31/2014		554,593
	For year ended 12/31/2015		455,846
	For year ended 12/31/2016		63,069
	Thereafter		845
		$	1,218,284

Segment_Reporting_Tables

Segment Reporting (Tables)	9 Months Ended
	Sep. 30, 2013
Segment Reporting [Abstract]	'
Financial Performance of Company's Reporting Segments	'
	The following tables summarize the financial performance of the Company’s reporting segments:
			Three Months Ended September 30, 2013
			Brazil			Argentina			Mexico			Venezuela			Other Countries			Total
	Net revenues		$	52,262,896		$	33,139,321		$	8,143,109		$	23,001,287		$	6,508,818$			123,055,431
	Direct costs			(30,385,801	)		(18,385,612	)		(5,110,995	)		(7,921,950	)		(2,865,057	)		(64,669,415	)
	Direct contribution			21,877,095			14,753,709			3,032,114			15,079,337			3,643,761			58,386,016
	Operating expenses and indirect costs of net revenues																		(20,986,953	)
	Income from operations																		37,399,063
	Other income (expenses):
	Interest income and other financial gains																		2,776,791
	Interest expense and other financial losses																		(487,496	)
	Foreign currency gain																		1,575,592
	Other losses, net																		(42,217	)
	Net income before income / asset tax expense																	$	41,221,733
			Three Months Ended September 30, 2012
			Brazil			Argentina			Mexico			Venezuela			Other Countries			Total
	Net revenues		$	46,202,033		$	24,122,810		$	6,736,106		$	14,213,460		$	5,992,375$			97,266,784
	Direct costs			(27,296,613	)		(11,291,054	)		(4,251,146	)		(4,058,735	)		(2,857,274	)		(49,754,822	)
	Direct contribution			18,905,420			12,831,756			2,484,960			10,154,725			3,135,101			47,511,962
	Operating expenses and indirect costs of net revenues																		(13,798,275	)
	Income from operations																		33,713,687
	Other income (expenses):
	Interest income and other financial gains																		2,925,913
	Interest expense and other financial losses																		(312,860	)
	Foreign currency loss																		(193,529	)
	Other losses, net																		(179,707	)
	Net income before income / asset tax expense																	$	35,953,504
			Nine Months Ended September 30, 2013
			Brazil			Argentina			Mexico			Venezuela			Other Countries			Total
	Net revenues		$	151,144,732		$	87,760,904		$	23,756,976		$	55,695,385		$	19,606,541		$	337,964,538
	Direct costs			(89,229,337	)		(48,065,070	)		(14,350,247	)		(20,408,854	)		(8,947,601	)		(181,001,109	)
	Direct contribution			61,915,395			39,695,834			9,406,729			35,286,531			10,658,940			156,963,429
	Operating expenses and indirect costs of net revenues																		(55,543,450	)
	Income from operations																		101,419,979
	Other income (expenses):
	Interest income and other financial gains																		8,373,112
	Interest expense and other financial losses																		(1,379,516	)
	Foreign currency loss																		(1,073,255	)
	Other losses, net																		(44,557	)
	Net income before income / asset tax expense																	$	107,295,763
						Nine Months Ended September 30, 2012
			Brazil			Argentina			Mexico			Venezuela			Other Countries			Total
	Net revenues		$	132,572,544		$	62,800,492		$	19,366,784		$	37,872,351		$	17,234,677		$	269,846,848
	Direct costs			(78,106,262	)		(28,957,465	)		(11,167,356	)		(12,634,983	)		(8,569,958	)		(139,436,024	)
	Direct contribution			54,466,282			33,843,027			8,199,428			25,237,368			8,664,719			130,410,824
	Operating expenses and indirect costs of net revenues																		(39,881,473	)
	Income from operations																		90,529,351
	Other income (expenses):
	Interest income and other financial gains																		8,996,775
	Interest expense and other financial losses																		(864,477	)
	Foreign currency loss																		(477,499	)
	Other losses, net																		(190,968	)
	Net income before income / asset tax expense																		97,993,182
Allocation of Long-Lived Tangible Assets Based on Geography	'
	The following table summarizes the allocation of the long-lived tangible assets based on geography, as of September 30, 2013 and December 31, 2012:
			September 30,			December 31,
			2013			2012
			(Unaudited)			(Audited)
	US long-lived tangible assets		$	9,213,001		$	6,782,077
	Other countries long-lived tangible assets
	Argentina			31,992,332			16,955,438
	Brazil			4,447,486			2,421,618
	Mexico			650,607			378,653
	Venezuela			30,464,662			8,455,816
	Other countries			3,232,022			2,732,620
			$	70,787,109		$	30,944,145
	Total long-lived tangible assets		$	80,000,110		$	37,726,222
Allocation of Goodwill and Intangible Assets Based on Geography	'
	The following table summarizes the allocation of the goodwill and intangible assets based on geography, as of September 30, 2013 and December 31, 2012:
			September 30,			December 31,
			2013			2012
			(Unaudited)			(Audited)
	US intangible assets		$	13,218		$	21,005
	Other countries goodwill and intangible assets
	Argentina			17,440,367			20,328,154
	Brazil			10,976,514			10,724,007
	Mexico			14,593,782			14,644,795
	Venezuela			6,953,628			6,595,117
	Other countries			14,316,640			15,332,850
			$	64,280,931		$	67,624,923
	Total goodwill and intangible assets		$	64,294,149		$	67,645,928
Consolidated Net Revenues by Similar Products and Services	'
	Consolidated net revenues by similar products and services for the three and nine-months ended September 30, 2013 and 2012 were as follows:
	Consolidated Net		Three Months Ended September 30,
	Revenues		2013			2012
	Marketplace		$	86,755,856		$	67,261,723
	Non-marketplace (*)		$	36,299,575		$	30,005,061
	Total		$	123,055,431		$	97,266,784
	Consolidated Net		Nine Months Ended September 30,
	Revenues		2013			2012
	Marketplace		$	236,386,126		$	189,479,420
	Non-marketplace (*)		$	101,578,412		$	80,367,428
	Total		$	337,964,538		$	269,846,848
	(*)	Includes, among other things, Ad Sales, Real Estate, Motors, Financing Fees, Off-platform Payment Fees and other ancillary services.

Fair_Value_Measurement_of_Asse1

Fair Value Measurement of Assets and Liabilities (Tables)	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Financial Assets and Liabilities Measured at Fair Value on Recurring Basis	'
	The following table summarizes the Company’s financial assets and liabilities measured at fair value on a recurring basis as of September 30, 2013 and December 31, 2012:
					Quoted Prices in							Quoted Prices in
			Balances as of		active markets for		Significant other			Balances as of		active markets for		Significant other
			September 30,		identical Assets		observable inputs			December 31,		identical Assets		observable inputs
	Description		2013		(Level 1)		(Level 2)			2012		(Level 1)		(Level 2)
			(Unaudited)							(Audited)
	Assets
	Cash and Cash Equivalents:
	Money Market Funds		$	16,980,298	$	16,980,298	$	—		$	23,033,357	$	23,033,357	$	—
	Investments:
	Asset backed securities			—		—		—			18,826,833		—		18,826,833
	Sovereign Debt Securities			36,616,637		36,616,637		—			21,453,141		21,453,141		—
	Corporate Debt Securities			44,810,908		41,739,786		3,071,122			51,991,294		51,991,294		—
	Total Financial Assets		$	98,407,843	$	95,336,721	$	3,071,122		$	115,304,625	$	96,477,792	$	18,826,833
Fair Value of Financial Assets and Liabilities Measured at Amortized Cost	'
	The following table summarizes the fair value level for those financial assets and liabilities of the Company measured at amortized cost as of September 30, 2013 and December 31, 2012:
			Balances as of		Significant other		Balances as of			Significant other
			September 30,		observable inputs		December 31,			observable inputs
			2013		(Level 2)		2012			(Level 2)
			(Unaudited)				(Audited)
	Assets
	Time Deposits		$	79,709,541		79,709,541	$	87,379,121			87,379,121
	Accounts and Credit Cards receivable			64,489,304		64,489,304		55,653,528			55,653,528
	Prepaid expenses and Other assets			25,519,167		25,519,167		19,601,417			19,601,417
	Total Assets		$	169,718,012	$	169,718,012	$	162,634,066		$	162,634,066
	Liabilities
	Accounts and funds payable		$	155,498,808	$	155,498,808	$	125,449,275		$	125,449,275
	Salaries and social security payable			17,026,016		17,026,016		14,994,186			14,994,186
	Tax payable			16,187,618		16,187,618		19,210,568			19,210,568
	Dividends payable			6,313,869		6,313,869		4,812,396			4,812,396
	Other liabilities			22,716,586		22,716,586		2,981,212			2,981,212
	Total Liabilities		$	217,742,897	$	217,742,897	$	167,447,637		$	167,447,637
Fair Value of Short and Long-Term Investments Classified as Available for Sale Securities	'
	As of September 30, 2013 and December 31, 2012, the fair value of money market funds, and of short and long-term investments classified as available for sale securities, are as follows:
			September 30, 2013 (Unaudited)
			Cost		Gross		Gross			Estimated
					Unrealized		Unrealized			Fair Value
					Gains		Losses (1)
	Cash and cash equivalents
	Money Market Funds		$	16,980,432	$	2,837	$	(2,971	)	$	16,980,298
	Total Cash and cash equivalents		$	16,980,432	$	2,837	$	(2,971	)	$	16,980,298
	Short-term investments
	Sovereign Debt Securities		$	3,960,902	$	2,333	$	—		$	3,963,235
	Corporate Debt Securities			7,658,163		1,890		(2,649	)		7,657,404
	Total Short-term investments		$	11,619,065	$	4,223	$	(2,649	)	$	11,620,639
	Long-term investments
	Sovereign Debt Securities		$	32,619,930	$	33,472	$	—		$	32,653,402
	Corporate Debt Securities			37,124,147		78,779		(49,422	)		37,153,504
	Total Long-term investments		$	69,744,077	$	112,251	$	(49,422	)	$	69,806,906
	Total		$	98,343,574	$	119,311	$	(55,042	)	$	98,407,843
			December 31, 2012 (Audited)
			Cost		Gross		Gross			Estimated
					Unrealized		Unrealized			Fair Value
					Gains		Losses (1)
	Cash and cash equivalents
	Money Market Funds		$	23,030,970	$	3,400	$	(1,013	)	$	23,033,357
	Total Cash and cash equivalents		$	23,030,970	$	3,400	$	(1,013	)	$	23,033,357
	Short-term investments
	Corporate Debt Securities		$	6,314,939	$	1,032	$	(287	)	$	6,315,684
	Total Short-term investments		$	6,314,939	$	1,032	$	(287	)	$	6,315,684
	Long-term investments
	Sovereign Debt Securities		$	21,153,227	$	299,914	$	—		$	21,453,141
	Corporate Debt Securities			45,089,831		630,807		(45,028	)		45,675,610
	Asset Backed Securities (2)			18,568,996		301,544		(43,707	)		18,826,833
	Total Long-term investments		$	84,812,054	$	1,232,265	$	(88,735	)	$	85,955,584
	Total		$	114,157,963	$	1,236,697	$	(90,035	)	$	115,304,625
	-1	Unrealized losses from securities are primarily attributable to market price movements. Management does not believe any remaining unrealized losses represent other-than-temporary impairments based on our evaluation of available evidence including the credit rating of the investments, as of September 30, 2013 and December 31, 2012.
	-2	Asset backed securities have investment grade credit ratings.
Estimated Fair Values of Short-Term and Long-Term Investments	'
	As of September 30, 2013, the estimated fair values of short-term and long-term investments classified by its contractual maturities were as follows:
	One year or less		$	28,600,937
	One year to two years			28,128,792
	Two years to three years			27,237,220
	Three years to four years			9,530,651
	Four years to five years			4,910,243
	More than five years			—
	Total		$	98,407,843

Long_Term_Retention_Plan_Table

Long Term Retention Plan (Tables)	9 Months Ended
	Sep. 30, 2013
Compensation And Retirement Disclosure [Abstract]	'
Long Term Retention Plans Accrued Compensation Expense	'
	The following table summarizes the 2009, 2010, 2011, 2012 and 2013 Long Term Retention Plans (LTRP) accrued compensation expense for the nine and three-month periods ended September 30, 2013 and 2012:
		Nine Months Ended				Three Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	LTRP 2009	$	1,631,152	$	389,064	$	513,474	$	209,140
	LTRP 2010		1,485,480		768,728		467,543		235,811
	LTRP 2011		1,497,996		970,498		491,283		283,622
	LTRP 2012		1,713,029		1,199,042		557,813		406,953
	LTRP 2013		3,669,558		—		2,657,114		—

Summary_of_Significant_Account3

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	3 Months Ended			9 Months Ended
	Sep. 30, 2013	Mar. 31, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
	ExchangeRate			ExchangeRate
Significant Accounting Policies [Line Items]	'	'	'	'	'	'
Percentage of revenues and operating costs generated in foreign operations	'	'	'	99.60%	99.50%	'
Long-lived assets located in the foreign operations	$135,068,130	'	'	$135,068,130	'	$98,569,068
Exchange rate used to re-measure transactions	6.3	'	'	6.3	'	'
Foreign currency loss	'	6,400,000	'	'	'	'
Percentage of consolidated net assets	16.50%	'	'	16.50%	'	'
Percentage of consolidated cash and investments	12.40%	'	'	12.40%	'	'
Percentage of tax benefits obtained from software development law	'	'	'	'From fiscal year 2008, the Company's Argentine subsidiary is beneficiary of a software development law. Part of the benefits obtained from being beneficiary of the aforementioned law is a relief of 60% of total income tax determined in each year, until fiscal year 2014.	'	'
Percentage on relief of total income tax	'	'	'	60.00%	'	'
Aggregate tax benefit, total	$2,973,762	'	$2,530,901	$7,742,787	$6,656,141	'
Aggregate per share effect of the Argentine tax holiday	$0.07	'	$0.06	$0.18	$0.15	'
Tax holidays	'	'	'	'5 years	'	'
SITME [Member]	'	'	'	'	'	'
Significant Accounting Policies [Line Items]	'	'	'	'	'	'
Exchange rate used to re-measure transactions	5.3	'	'	5.3	'	'
Minimum [Member]	'	'	'	'	'	'
Significant Accounting Policies [Line Items]	'	'	'	'	'	'
Exchange rate used to re-measure transactions	4.3	'	'	4.3	'	'
Minimum [Member] | SITME [Member]	'	'	'	'	'	'
Significant Accounting Policies [Line Items]	'	'	'	'	'	'
Exchange rate used to re-measure transactions	5.3	'	'	5.3	'	'
Maximum [Member]	'	'	'	'	'	'
Significant Accounting Policies [Line Items]	'	'	'	'	'	'
Exchange rate used to re-measure transactions	6.3	'	'	6.3	'	'
Maximum [Member] | SITME [Member]	'	'	'	'	'	'
Significant Accounting Policies [Line Items]	'	'	'	'	'	'
Exchange rate used to re-measure transactions	6.3	'	'	6.3	'	'

Summary_of_Significant_Account4

Summary of Significant Accounting Policies - Assets, Liabilities and Net Assets of the Company's Venezuelan Subsidiaries (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Significant Accounting Policies [Line Items]	'	'	'	'	'
Net revenues	$123,055,431	$97,266,784	$337,964,538	$269,846,848	'
Assets	569,321,245	'	569,321,245	'	478,669,276
Liabilities	-241,120,704	'	-241,120,704	'	-184,855,650
Venezuelan Operations [Member]	'	'	'	'	'
Significant Accounting Policies [Line Items]	'	'	'	'	'
Net revenues	'	'	55,695,385	37,872,351	'
Assets	106,529,563	62,938,728	106,529,563	62,938,728	'
Liabilities	-53,195,418	-22,652,965	-53,195,418	-22,652,965	'
Net Assets	$53,334,145	$40,285,763	$53,334,145	$40,285,763	'

Net_Income_Per_Share_Allocatio

Net Income Per Share - Allocation of Net Income Available to Common Shareholders using Two-Class Method (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Share [Abstract]	'	'	'	'
Net income	$29,146,247	$26,067,897	$76,690,296	$71,099,757
Net loss (income) attributable to noncontrolling interests	137,927	-24,804	53,213	-42,864
Change in redeemable amount of noncontrolling interest	-306,133	184,100	-355,370	321,300
Net income attributable to MercadoLibre, Inc. Shareholders corresponding to common stock, Basic	28,978,041	26,227,193	76,388,139	71,378,193
Net income attributable to MercadoLibre, Inc. Shareholders corresponding to common stock, Diluted	$28,978,041	$26,227,193	$76,388,139	$71,378,193

Net_Income_Per_Share_Net_Incom

Net Income Per Share - Net Income Per Share of Common Stock (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net income attributable to MercadoLibre, Inc. per common share	'	'	'	'
Net income attributable to MercadoLibre, Inc. per common share, Basic	$0.66	$0.59	$1.73	$1.62
Net income attributable to MercadoLibre, Inc. per common share, Diluted	$0.66	$0.59	$1.73	$1.62
Numerator:	'	'	'	'
Net income attributable to MercadoLibre, Inc., Basic	$28,978,041	$26,227,193	$76,388,139	$71,378,193
Net income attributable to MercadoLibre, Inc., Diluted	$28,978,041	$26,227,193	$76,388,139	$71,378,193
Denominator:	'	'	'	'
Weighted average of common stock outstanding for Basic earnings per share	44,152,933	44,150,387	44,152,402	44,146,834
Weighted average of common stock outstanding for Diluted earnings per share	44,152,933	44,150,387	44,152,402	44,146,834
Adjustment for stock options	'	1,975	'	1,977
Adjustment for shares granted under LTRP	'	4,959	'	4,967
Adjusted weighted average of common stock outstanding for Diluted earnings per share	44,152,933	44,157,321	44,152,402	44,153,778

Net_Income_Per_Share_Additiona

Net Income Per Share - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Share [Abstract]	'	'	'	'
Anti-dilutive shares	0	0	0	0

Business_Combinations_Goodwill2

Business Combinations, Goodwill and Intangible Assets - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Mar. 22, 2013	Mar. 22, 2013	Sep. 30, 2013	Sep. 30, 2013
	USD ($)	USD ($)	USD ($)	USD ($)	USD ($)	ARS	24-Months Period [Member]	36-Months Period [Member]
							USD ($)	USD ($)
Business Acquisition Actual Revenue And Pre Tax Income Loss [Line Items]	'	'	'	'	'	'	'	'
Percentage of acquisition	'	'	'	'	100.00%	100.00%	'	'
Business acquisition rights of buyer description	'	'	'On such same date, the Buyer paid and agreed to pay the purchase price as follows i) $2,191,781 in cash; ii) set an escrow amounting to $489,237 for a 24-months period, aiming to cover unexpected liabilities and negative working capital; iii) set an escrow amounting to $547,945 for a 36-months period, aiming to continue the employment relationship of certain key employees; and iv) on June 24, 2013 the Company paid the remaining $225,534 net of certain negative working capital adjustments.	'	'	'	'	'
Business acquisition, cash pay	'	'	$2,191,781	'	'	'	'	'
Escrow amount covering unexpected liabilities and negative working capital	'	'	'	'	'	'	489,237	'
Escrow amount to continue employment relationship	'	'	'	'	'	'	'	547,945
Business acquisition payment subject to collection of credits held by certain customer	225,534	'	225,534	'	'	'	'	'
Total purchase price	'	'	'	'	3,454,497	17,652,480	'	'
Escrow for employment relationship	'	'	'	'	547,945	'	'	'
Net revenues	'	'	511,421	'	'	'	'	'
Net income	'	'	25,288	'	'	'	'	'
Total aggregate amortization expense for intangible assets	$194,114	$207,374	$631,560	$669,850	'	'	'	'

Business_Combinations_Goodwill3

Business Combinations, Goodwill and Intangible Assets - Definitive Purchase Price Allocation for Acquisition (Detail)	Sep. 30, 2013	Mar. 22, 2013	Mar. 22, 2013	Dec. 31, 2012	Dec. 31, 2011
	USD ($)	USD ($)	ARS	USD ($)	USD ($)
Business Combinations [Abstract]	'	'	'	'	'
Net assets acquired	'	$237,891	'	'	'
Goodwill	57,855,465	2,668,661	'	60,366,063	62,093,948
Purchase price	'	2,906,552	'	'	'
Escrow for employment relationship	'	547,945	'	'	'
Aggregate price paid	'	$3,454,497	17,652,480	'	'

Business_Combinations_Goodwill4

Business Combinations, Goodwill and Intangible Assets - Composition of Goodwill and Intangible Assets (Detail) (USD $)	Sep. 30, 2013	Mar. 22, 2013	Dec. 31, 2012	Dec. 31, 2011
Indefinite-lived Intangible Assets [Line Items]	'	'	'	'
Goodwill	$57,855,465	$2,668,661	$60,366,063	$62,093,948
Total intangible assets	11,310,197	'	12,060,004	'
Accumulated amortization	-4,871,513	'	-4,780,139	'
Total intangible assets, net	6,438,684	'	7,279,865	'
Licenses and Others [Member]	'	'	'	'
Indefinite-lived Intangible Assets [Line Items]	'	'	'	'
Finite-Lived Intangible Assets, Gross	3,360,827	'	3,829,668	'
Non-Compete Agreement [Member]	'	'	'	'
Indefinite-lived Intangible Assets [Line Items]	'	'	'	'
Finite-Lived Intangible Assets, Gross	1,084,248	'	1,195,509	'
Customer List [Member]	'	'	'	'
Indefinite-lived Intangible Assets [Line Items]	'	'	'	'
Finite-Lived Intangible Assets, Gross	1,644,722	'	1,708,770	'
Trademarks [Member]	'	'	'	'
Indefinite-lived Intangible Assets [Line Items]	'	'	'	'
Trademarks	$5,220,400	'	$5,326,057	'

Business_Combinations_Goodwill5

Business Combinations, Goodwill and Intangible Assets - Table Showing Changes in Carrying Amount of Goodwill (Detail) (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Mar. 22, 2013
Goodwill [Line Items]	'	'	'
Balance, beginning of period	$60,366,063	$62,093,948	$2,668,661
Business acquisition	2,668,661	'	'
Effect of exchange rates changes	-5,179,259	-1,727,885	'
Balance, end of the period	57,855,465	60,366,063	2,668,661
Brazil [Member]	'	'	'
Goodwill [Line Items]	'	'	'
Balance, beginning of period	10,706,281	11,663,443	'
Business acquisition	1,307,644	'	'
Effect of exchange rates changes	-1,047,310	-957,162	'
Balance, end of the period	10,966,615	10,706,281	'
Argentina [Member]	'	'	'
Goodwill [Line Items]	'	'	'
Balance, beginning of period	18,889,094	21,583,774	'
Business acquisition	659,159	'	'
Effect of exchange rates changes	-2,956,006	-2,694,680	'
Balance, end of the period	16,592,247	18,889,094	'
Chile [Member]	'	'	'
Goodwill [Line Items]	'	'	'
Balance, beginning of period	7,115,211	6,577,459	'
Business acquisition	'	'	'
Effect of exchange rates changes	-325,508	537,752	'
Balance, end of the period	6,789,703	7,115,211	'
Mexico [Member]	'	'	'
Goodwill [Line Items]	'	'	'
Balance, beginning of period	11,404,780	10,621,839	'
Business acquisition	186,806	'	'
Effect of exchange rates changes	-204,130	782,941	'
Balance, end of the period	11,387,456	11,404,780	'
Venezuela [Member]	'	'	'
Goodwill [Line Items]	'	'	'
Balance, beginning of period	4,846,030	4,846,030	'
Business acquisition	405,637	'	'
Effect of exchange rates changes	-47,126	'	'
Balance, end of the period	5,204,541	4,846,030	'
Colombia [Member]	'	'	'
Goodwill [Line Items]	'	'	'
Balance, beginning of period	5,897,136	5,367,526	'
Business acquisition	69,385	'	'
Effect of exchange rates changes	-459,034	529,610	'
Balance, end of the period	5,507,487	5,897,136	'
Other Countries [Member]	'	'	'
Goodwill [Line Items]	'	'	'
Balance, beginning of period	1,507,531	1,433,877	'
Business acquisition	40,030	'	'
Effect of exchange rates changes	-140,145	73,654	'
Balance, end of the period	$1,407,416	$1,507,531	'

Business_Combinations_Goodwill6

Business Combinations, Goodwill and Intangible Assets - Estimated Aggregate Amortization Expense (Detail) (USD $)	Sep. 30, 2013
Goodwill And Intangible Assets Disclosure [Abstract]	'
For year ended 12/31/2013	$143,931
For year ended 12/31/2014	554,593
For year ended 12/31/2015	455,846
For year ended 12/31/2016	63,069
Thereafter	845
Total estimated aggregate amortization expense	$1,218,284

Segment_Reporting_Financial_Pe

Segment Reporting - Financial Performance of Company's Reporting Segments (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Segment Reporting Information [Line Items]	'	'	'	'
Net revenues	$123,055,431	$97,266,784	$337,964,538	$269,846,848
Direct costs	-64,669,415	-49,754,822	-181,001,109	-139,436,024
Direct contribution	58,386,016	47,511,962	156,963,429	130,410,824
Operating expenses and indirect costs of net revenues	-20,986,953	-13,798,275	-55,543,450	-39,881,473
Income from operations	37,399,063	33,713,687	101,419,979	90,529,351
Interest income and other financial gains	2,776,791	2,925,913	8,373,112	8,996,775
Interest expense and other financial losses	-487,496	-312,860	-1,379,516	-864,477
Foreign currency gain (loss)	1,575,592	-193,529	-1,073,255	-477,499
Other losses, net	-42,217	-179,707	-44,557	-190,968
Net income before income / asset tax expense	41,221,733	35,953,504	107,295,763	97,993,182
Brazil [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net revenues	52,262,896	46,202,033	151,144,732	132,572,544
Direct costs	-30,385,801	-27,296,613	-89,229,337	-78,106,262
Direct contribution	21,877,095	18,905,420	61,915,395	54,466,282
Operating expenses and indirect costs of net revenues	'	'	'	'
Income from operations	'	'	'	'
Interest income and other financial gains	'	'	'	'
Interest expense and other financial losses	'	'	'	'
Foreign currency gain (loss)	'	'	'	'
Other losses, net	'	'	'	'
Net income before income / asset tax expense	'	'	'	'
Argentina [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net revenues	33,139,321	24,122,810	87,760,904	62,800,492
Direct costs	-18,385,612	-11,291,054	-48,065,070	-28,957,465
Direct contribution	14,753,709	12,831,756	39,695,834	33,843,027
Operating expenses and indirect costs of net revenues	'	'	'	'
Income from operations	'	'	'	'
Interest income and other financial gains	'	'	'	'
Interest expense and other financial losses	'	'	'	'
Foreign currency gain (loss)	'	'	'	'
Other losses, net	'	'	'	'
Net income before income / asset tax expense	'	'	'	'
Mexico [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net revenues	8,143,109	6,736,106	23,756,976	19,366,784
Direct costs	-5,110,995	-4,251,146	-14,350,247	-11,167,356
Direct contribution	3,032,114	2,484,960	9,406,729	8,199,428
Operating expenses and indirect costs of net revenues	'	'	'	'
Income from operations	'	'	'	'
Interest income and other financial gains	'	'	'	'
Interest expense and other financial losses	'	'	'	'
Foreign currency gain (loss)	'	'	'	'
Other losses, net	'	'	'	'
Net income before income / asset tax expense	'	'	'	'
Venezuela [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net revenues	23,001,287	14,213,460	55,695,385	37,872,351
Direct costs	-7,921,950	-4,058,735	-20,408,854	-12,634,983
Direct contribution	15,079,337	10,154,725	35,286,531	25,237,368
Operating expenses and indirect costs of net revenues	'	'	'	'
Income from operations	'	'	'	'
Interest income and other financial gains	'	'	'	'
Interest expense and other financial losses	'	'	'	'
Foreign currency gain (loss)	'	'	'	'
Other losses, net	'	'	'	'
Net income before income / asset tax expense	'	'	'	'
Other Countries [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net revenues	6,508,818	5,992,375	19,606,541	17,234,677
Direct costs	-2,865,057	-2,857,274	-8,947,601	-8,569,958
Direct contribution	3,643,761	3,135,101	10,658,940	8,664,719
Operating expenses and indirect costs of net revenues	'	'	'	'
Income from operations	'	'	'	'
Interest income and other financial gains	'	'	'	'
Interest expense and other financial losses	'	'	'	'
Foreign currency gain (loss)	'	'	'	'
Other losses, net	'	'	'	'
Net income before income / asset tax expense	'	'	'	'

Segment_Reporting_Allocation_o

Segment Reporting - Allocation of Long-Lived Tangible Assets Based on Geography (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Other countries long-lived tangible assets	$70,787,109	$30,944,145
Total long-lived tangible assets	80,000,110	37,726,222
United States [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Other countries long-lived tangible assets	9,213,001	6,782,077
Argentina [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Other countries long-lived tangible assets	31,992,332	16,955,438
Brazil [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Other countries long-lived tangible assets	4,447,486	2,421,618
Mexico [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Other countries long-lived tangible assets	650,607	378,653
Venezuela [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Other countries long-lived tangible assets	30,464,662	8,455,816
Other Countries [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Other countries long-lived tangible assets	$3,232,022	$2,732,620

Segment_Reporting_Additional_I

Segment Reporting - Additional Information (Detail)	1 Months Ended			5 Months Ended	9 Months Ended		9 Months Ended
In Millions, unless otherwise specified	31-May-13	Sep. 30, 2013	Apr. 30, 2013	Oct. 31, 2013	Sep. 30, 2013	31-May-13	Sep. 30, 2013	Sep. 30, 2013
	USD ($)	Buenos Aires [Member]	Buenos Aires [Member]	Buenos Aires [Member]	Caracas [Member]	Caracas [Member]	Caracas [Member]	Caracas [Member]
		USD ($)	USD ($)	Subsequent Events [Member]		VEF	Venezuelan Operations [Member]	Venezuelan Operations [Member]
		Installment	Installment	USD ($)		ParkingSpaces	USD ($)	VEF
			sqm			StorageSpaces	sqm
			Floors			sqm
Sales Information [Line Items]	'	'	'	'	'	'	'	'
Area of new office building	'	'	3,918	'	'	1,158	'	'
Acquisition agreement amount	$20	'	$18.50	'	'	'	'	'
Number of floors in new office building	'	'	3	'	'	'	'	'
Acquisition agreement amount	'	'	0.4	'	'	'	52.2	328.2
Acquisition agreement amount to be paid	'	'	3.2	'	'	126	'	'
Acquisition agreement amount	'	'	'	10.5	'	'	'	'
Unpaid balance of building acquisition	'	6.2	'	'	'	'	'	'
Number of monthly installments	'	3	5	'	'	'	'	'
Number of Parking space	'	'	'	'	'	13	'	'
Number of storage space	'	'	'	'	'	4	'	'
Area of office property acquired	'	'	'	'	'	'	1,367	1,367
Line of credit facility amount	'	'	'	'	'	'	$13.50	85.1
Agreement period	'	'	'	'	'	'	'12 months	'12 months
Line of credit facility interest rate	'	'	'	'	'	'	13.00%	13.00%
Advance for fixed assets	'	'	'	'	50.00%	'	'	'
Purchase price rate	'	'	'	'	100.00%	'	'	'

Segment_Reporting_Allocation_o1

Segment Reporting - Allocation of Goodwill and Intangible Assets Based on Geography (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Other countries goodwill and intangible assets	$64,280,931	$67,624,923
Total goodwill and intangible assets	64,294,149	67,645,928
United States [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
US intangible assets	13,218	21,005
Argentina [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Other countries goodwill and intangible assets	17,440,367	20,328,154
Brazil [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Other countries goodwill and intangible assets	10,976,514	10,724,007
Mexico [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Other countries goodwill and intangible assets	14,593,782	14,644,795
Venezuela [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Other countries goodwill and intangible assets	6,953,628	6,595,117
Other Countries [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Other countries goodwill and intangible assets	$14,316,640	$15,332,850

Segment_Reporting_Consolidated

Segment Reporting - Consolidated Sales Revenues by Similar Products and Services (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'	'
Net revenues	$123,055,431	$97,266,784	$337,964,538	$269,846,848
Marketplace [Member]	'	'	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'	'
Net revenues	86,755,856	67,261,723	236,386,126	189,479,420
Non-marketplace [Member]	'	'	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'	'
Net revenues	$36,299,575	$30,005,061	$101,578,412	$80,367,428

Fair_Value_Measurement_of_Asse2

Fair Value Measurement of Assets and Liabilities - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (Fair Value, Measurements, Recurring [Member], USD $)	Sep. 30, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total Financial Assets	$98,407,843	$115,304,625
Money Market Funds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash and Cash Equivalents	16,980,298	23,033,357
Asset Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	'	18,826,833
Sovereign Debt Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	36,616,637	21,453,141
Corporate Debt Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	44,810,908	51,991,294
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total Financial Assets	95,336,721	96,477,792
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Money Market Funds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash and Cash Equivalents	16,980,298	23,033,357
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Asset Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	'	'
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Sovereign Debt Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	36,616,637	21,453,141
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Corporate Debt Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	41,739,786	51,991,294
Significant Other Observable Inputs (Level 2) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total Financial Assets	3,071,122	18,826,833
Significant Other Observable Inputs (Level 2) [Member] | Money Market Funds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash and Cash Equivalents	'	'
Significant Other Observable Inputs (Level 2) [Member] | Asset Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	'	18,826,833
Significant Other Observable Inputs (Level 2) [Member] | Sovereign Debt Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	'	'
Significant Other Observable Inputs (Level 2) [Member] | Corporate Debt Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	$3,071,122	'

Fair_Value_Measurement_of_Asse3

Fair Value Measurement of Assets and Liabilities - Additional Information (Detail) (USD $)	9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Fair Value Measurements Of Financial Instruments [Line Items]	'	'
Short-term investments	$79,709,541	$87,379,121
Net impact of sale of investments	518,713	'
Reclassification of other comprehensive income to net income	871,702	'
Auction Rate Securities [Member]	'	'
Fair Value Measurements Of Financial Instruments [Line Items]	'	'
Investments	0	0
Collateralized Debt Obligations [Member]	'	'
Fair Value Measurements Of Financial Instruments [Line Items]	'	'
Investments	0	0
Structured Investment Vehicles [Member]	'	'
Fair Value Measurements Of Financial Instruments [Line Items]	'	'
Investments	$0	$0

Fair_Value_Measurement_of_Asse4

Fair Value Measurement of Assets and Liabilities - Fair Value of Financial Assets and Liabilities Measured at Amortized Cost (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Carrying Value [Member]	'	'
Assets	'	'
Assets	$169,718,012	$162,634,066
Liabilities	'	'
Liabilities	217,742,897	167,447,637
Carrying Value [Member] | Accounts and Funds Payable [Member]	'	'
Liabilities	'	'
Liabilities	155,498,808	125,449,275
Carrying Value [Member] | Salaries and Social Security Payable [Member]	'	'
Liabilities	'	'
Liabilities	17,026,016	14,994,186
Carrying Value [Member] | Tax Payable [Member]	'	'
Liabilities	'	'
Liabilities	16,187,618	19,210,568
Carrying Value [Member] | Dividends Payable [Member]	'	'
Liabilities	'	'
Liabilities	6,313,869	4,812,396
Carrying Value [Member] | Other Liabilities [Member]	'	'
Liabilities	'	'
Liabilities	22,716,586	2,981,212
Carrying Value [Member] | Time Deposits [Member]	'	'
Assets	'	'
Assets	79,709,541	87,379,121
Carrying Value [Member] | Accounts and Credit Cards Receivable [Member]	'	'
Assets	'	'
Assets	64,489,304	55,653,528
Carrying Value [Member] | Prepaid Expenses and Other Assets [Member]	'	'
Assets	'	'
Assets	25,519,167	19,601,417
Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member]	'	'
Assets	'	'
Assets	169,718,012	162,634,066
Liabilities	'	'
Liabilities	217,742,897	167,447,637
Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member] | Accounts and Funds Payable [Member]	'	'
Liabilities	'	'
Liabilities	155,498,808	125,449,275
Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member] | Salaries and Social Security Payable [Member]	'	'
Liabilities	'	'
Liabilities	17,026,016	14,994,186
Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member] | Tax Payable [Member]	'	'
Liabilities	'	'
Liabilities	16,187,618	19,210,568
Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member] | Dividends Payable [Member]	'	'
Liabilities	'	'
Liabilities	6,313,869	4,812,396
Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member] | Other Liabilities [Member]	'	'
Liabilities	'	'
Liabilities	22,716,586	2,981,212
Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member] | Time Deposits [Member]	'	'
Assets	'	'
Assets	79,709,541	87,379,121
Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member] | Accounts and Credit Cards Receivable [Member]	'	'
Assets	'	'
Assets	64,489,304	55,653,528
Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member] | Prepaid Expenses and Other Assets [Member]	'	'
Assets	'	'
Assets	$25,519,167	$19,601,417

Fair_Value_Measurement_of_Asse5

Fair Value Measurement of Assets and Liabilities - Fair Value of Short and Long-Term Investments Classified as Available for Sale Securities (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	$98,343,574	$114,157,963
Gross Unrealized Gains	119,311	1,236,697
Gross Unrealized Losses	-55,042	-90,035
Estimated Fair Value	98,407,843	115,304,625
Cash and Cash Equivalents [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	16,980,432	23,030,970
Gross Unrealized Gains	2,837	3,400
Gross Unrealized Losses	-2,971	-1,013
Estimated Fair Value	16,980,298	23,033,357
Short-Term Investments [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	11,619,065	6,314,939
Gross Unrealized Gains	4,223	1,032
Gross Unrealized Losses	-2,649	-287
Estimated Fair Value	11,620,639	6,315,684
Long-Term Investments [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	69,744,077	84,812,054
Gross Unrealized Gains	112,251	1,232,265
Gross Unrealized Losses	-49,422	-88,735
Estimated Fair Value	69,806,906	85,955,584
Money Market Funds [Member] | Cash and Cash Equivalents [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	16,980,432	23,030,970
Gross Unrealized Gains	2,837	3,400
Gross Unrealized Losses	-2,971	-1,013
Estimated Fair Value	16,980,298	23,033,357
Sovereign Debt Securities [Member] | Short-Term Investments [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	3,960,902	'
Gross Unrealized Gains	2,333	'
Gross Unrealized Losses	'	'
Estimated Fair Value	3,963,235	'
Sovereign Debt Securities [Member] | Long-Term Investments [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	32,619,930	21,153,227
Gross Unrealized Gains	33,472	299,914
Gross Unrealized Losses	'	'
Estimated Fair Value	32,653,402	21,453,141
Corporate Debt Securities [Member] | Short-Term Investments [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	7,658,163	6,314,939
Gross Unrealized Gains	1,890	1,032
Gross Unrealized Losses	-2,649	-287
Estimated Fair Value	7,657,404	6,315,684
Corporate Debt Securities [Member] | Long-Term Investments [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	37,124,147	45,089,831
Gross Unrealized Gains	78,779	630,807
Gross Unrealized Losses	-49,422	-45,028
Estimated Fair Value	37,153,504	45,675,610
Asset Backed Securities [Member] | Long-Term Investments [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	'	18,568,996
Gross Unrealized Gains	'	301,544
Gross Unrealized Losses	'	-43,707
Estimated Fair Value	'	$18,826,833

Fair_Value_Measurement_of_Asse6

Fair Value Measurement of Assets and Liabilities - Estimated Fair Values of Short-Term and Long-Term Investments (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Fair Value Disclosures [Abstract]	'	'
One year or less	$28,600,937	'
One year to two years	28,128,792	'
Two years to three years	27,237,220	'
Three years to four years	9,530,651	'
Four years to five years	4,910,243	'
More than five years	'	'
Estimated Fair Value	$98,407,843	$115,304,625

Commitments_and_Contingencies_

Commitments and Contingencies - Additional Information (Detail)	1 Months Ended		1 Months Ended
	Sep. 23, 2010	Sep. 30, 2013	Aug. 25, 2010	Sep. 30, 2013	Sep. 30, 2013
	USD ($)	USD ($)	State of Sao Paulo Fraud Claim [Member]	City of Sao Paulo Tax Claim [Member]	City of Sao Paulo Tax Claim [Member]
		LegalMatter	USD ($)	USD ($)	BRL
Loss Contingencies [Line Items]	'	'	'	'	'
Reserves for proceeding-related contingencies	'	$3,536,947	'	'	'
Aggregate amount for legal actions for which no loss amount has been accrued	'	4,237,413	'	'	'
Number of legal actions pending	'	623	'	'	'
Loss contingency pending cases related to consumer courts	'	3,371	'	'	'
Daily non-compliance penalty	'	'	6,000	'	'
Penalty established on injunction	6,000	'	'	'	'
Approximate additional amount related to asserted taxes and fines	'	'	'	$18,100,000	40,300,000

Long_Term_Retention_Plan_Addit

Long Term Retention Plan - Additional Information (Detail) (USD $)	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013
	Quotas
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Number of quotas for payment under LTRP	6	'
Percentage quotas in each installment under LTRP	'	16.67%
Percentage base for calculation of quotas under LTRP	'	8.33%
Long Term Retention Plan each quota calculation term	'	'8.333% of the amount is calculated in nominal terms ("the nominal basis share"), 8.333% is adjusted by multiplying the nominal amount by the average closing stock price for the last 60 trading days of the year previous to the payment date and divided by the average closing stock price for the last 60 trading days of 2012. The average closing stock price for the 2013 LTRP amounted to $79.57 ("the variable share").
Number of trading days consider for average closing price	'	'60 days
Average closing stock price	'	$79.57
Long Term Retention Plan 2013 [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Long Term Retention Plan payment term	'In 6 equal annual quotas (16.67% each) commencing on March 31, 2014	'

Long_Term_Retention_Plan_Long_

Long Term Retention Plan - Long Term Retention Plans Accrued Compensation Expense (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Long Term Retention Plan 2009 [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Long term retention plan	$513,474	$209,140	$1,631,152	$389,064
Long Term Retention Plan 2010 [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Long term retention plan	467,543	235,811	1,485,480	768,728
Long Term Retention Plan 2011 [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Long term retention plan	491,283	283,622	1,497,996	970,498
Long Term Retention Plan 2012 [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Long term retention plan	557,813	406,953	1,713,029	1,199,042
Long Term Retention Plan 2013 [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Long term retention plan	$2,657,114	'	$3,669,558	'

Cash_Dividend_Distribution_Add

Cash Dividend Distribution - Additional Information (Detail) (USD $)	1 Months Ended				9 Months Ended	1 Months Ended
In Millions, except Per Share data, unless otherwise specified	Jul. 30, 2013	Apr. 30, 2013	Feb. 22, 2013	Jan. 15, 2013	Sep. 30, 2013	Oct. 31, 2013
						Subsequent Events [Member]
Dividends Payable [Line Items]	'	'	'	'	'	'
Cash dividend distribution	$6.30	$6.30	$6.30	$4.80	'	'
Cash dividend declared, per share	$0.14	$0.14	$0.14	$0.11	'	'
Dividend paid date	15-Oct-13	15-Jul-13	15-Apr-13	'	15-Jan-13	15-Jan-14
Dividends Payment, Date of Record	30-Sep-13	28-Jun-13	29-Mar-13	'	'	30-Dec-13
Cash dividend declared	'	'	'	'	'	$6.30
Cash dividend declared, per share	'	'	'	'	'	$0.14