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Business Combinations, Goodwill and Intangible Assets - Table Showing Changes in Carrying Amount of Goodwill (Detail) (USD $) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2014 | Dec. 31, 2013 | Mar. 22, 2013
Goodwill [Line Items] |  |  |
Balance, beginning of the period | $ 55,101,218 | $ 60,366,063 | $ 2,668,661
Business Acquisition |  | 2,668,661 |
Effect of exchange rates changes | (3,141,788) | (7,933,506) |
Balance, end of the period | 51,959,430 | 55,101,218 | 2,668,661
Brazil [Member] |  |  |
Goodwill [Line Items] |  |  |
Balance, beginning of the period | 10,366,018 | 10,706,281 |
Business Acquisition |  | 1,307,644 |
Effect of exchange rates changes | 138,486 | (1,647,907) |
Balance, end of the period | 10,504,504 | 10,366,018 |
Argentina [Member] |  |  |
Goodwill [Line Items] |  |  |
Balance, beginning of the period | 14,676,145 | 18,889,094 |
Business Acquisition |  | 659,159 |
Effect of exchange rates changes | (2,775,163) | (4,872,108) |
Balance, end of the period | 11,900,982 | 14,676,145 |
Chile [Member] |  |  |
Goodwill [Line Items] |  |  |
Balance, beginning of the period | 6,520,194 | 7,115,211 |
Effect of exchange rates changes | (317,050) | (595,017) |
Balance, end of the period | 6,203,144 | 6,520,194 |
Mexico [Member] |  |  |
Goodwill [Line Items] |  |  |
Balance, beginning of the period | 11,376,140 | 11,404,780 |
Business Acquisition |  | 186,806 |
Effect of exchange rates changes | (68,795) | (215,446) |
Balance, end of the period | 11,307,345 | 11,376,140 |
Venezuela [Member] |  |  |
Goodwill [Line Items] |  |  |
Balance, beginning of the period |  | 4,846,030 |
Business Acquisition |  | 405,637 |
Balance, end of the period | 5,251,667 | 5,251,667 |
Colombia [Member] |  |  |
Goodwill [Line Items] |  |  |
Balance, beginning of the period | 5,506,062 | 5,897,136 |
Business Acquisition |  | 69,385 |
Effect of exchange rates changes | (115,016) | (460,459) |
Balance, end of the period | 5,391,046 | 5,506,062 |
Other Countries [Member] |  |  |
Goodwill [Line Items] |  |  |
Balance, beginning of the period | 1,404,992 | 1,507,531 |
Business Acquisition |  | 40,030 |
Effect of exchange rates changes | (4,250) | (142,569) |
Balance, end of the period | $ 1,400,742 | $ 1,404,992 |

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 + Details
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- Definition Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 + Details
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