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Business Combinations, Goodwill and Intangible Assets - Table Showing Changes in Carrying Amount of Goodwill (Detail) (USD $) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2014 | Dec. 31, 2013
Goodwill [Line Items] |  |
Balance, beginning of the period | $ 55,101,218 | $ 60,366,063
Business Acquisition | 17,939,365 | 2,668,661
Effect of exchange rates change | (2,772,737) | (7,933,506)
Balance, end of the period | 70,267,846 | 55,101,218
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 change | 390,572 | (1,647,907)
Balance, end of the period | 10,756,590 | 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 change | (2,989,282) | (4,872,108)
Balance, end of the period | 11,686,863 | 14,676,145
Chile [Member] |  |
Goodwill [Line Items] |  |
Balance, beginning of the period | 6,520,194 | 7,115,211
Business Acquisition | 12,384,798 |
Effect of exchange rates change | (341,628) | (595,017)
Balance, end of the period | 18,563,364 | 6,520,194
Mexico [Member] |  |
Goodwill [Line Items] |  |
Balance, beginning of the period | 11,376,140 | 11,404,780
Business Acquisition | 5,554,567 | 186,806
Effect of exchange rates change | 74,173 | (215,446)
Balance, end of the period | 17,004,880 | 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 change | 120,498 | (460,459)
Balance, end of the period | 5,626,560 | 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 change | (27,070) | (142,569)
Balance, end of the period | $ 1,377,922 | $ 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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