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Long-Term Debt (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014 | Dec. 31, 2014
Long Term Debt [Line Items] |  |  |  |  |
Borrowings under Guaranteed Investment Agreements | $ 116,800 |  | $ 116,800 |  |
Line of Credit Facility, Interest Rate Description |  |  | The floating interest rates on the revolving notes are between DTF+6% and DTF+7%. DTF is the primary measure of interest rates in Colombia. |  |
Long-term Line of Credit | 30,800 |  | $ 30,800 |  | $ 26,800
Interest Expense, Debt | 2,307 | $ 2,380 | 6,509 | $ 6,647 |
Assets Acquired Under Capital Lease | 44,600 | $ 3,100 | 44,624 | $ 3,152 |
Revolving Lines Of Credit [Member] |  |  |  |  |
Long Term Debt [Line Items] |  |  |  |  |
Long-term Line of Credit | 6,700 |  | 6,700 |  | 400
Line of Credit Facility, Maximum Borrowing Capacity | 7,100 |  | 7,100 |  |
Revolving Lines Of Credit [Member] | Other Noncurrent Assets [Member] |  |  |  |  |
Long Term Debt [Line Items] |  |  |  |  |
Long-term Line of Credit | 48,056 |  | 48,056 |  | 26,856
Secured Debt [Member] | Other Noncurrent Assets [Member] |  |  |  |  |
Long Term Debt [Line Items] |  |  |  |  |
Long-term Line of Credit | 300 |  | 300 |  | 400
Debt Instrument, Collateral Amount | 402 |  | 402 |  | 435
Secured Debt [Member] | Property, Plant and Equipment [Member] |  |  |  |  |
Long Term Debt [Line Items] |  |  |  |  |
Long-term Line of Credit | 5,900 |  | 5,900 |  | 7,400
Debt Instrument, Collateral Amount | $ 7,186 |  | $ 7,186 |  | $ 7,362
Maximum [Member] |  |  |  |  |
Long Term Debt [Line Items] |  |  |  |  |
Debt Instrument, Term |  |  | 15 years |  |
Debt Instrument, Interest Rate, Effective Percentage | 14.70% |  | 14.70% |  |
Minimum [Member] |  |  |  |  |
Long Term Debt [Line Items] |  |  |  |  |
Debt Instrument, Interest Rate, Effective Percentage | 2.80% |  | 2.80% |  |

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- Definition Represents the fair value of assets acquired in noncash investing or financing activities. + References No definition available. + Details
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- Definition Carrying value as of the balance sheet date of the sum of the obligations to contract holders to provide to them an agreed upon rate of return pursuant to the terms of the underlying contract. These contracts represent lending by the contract holders to the entity in return for a guaranteed (primarily fixed) interest rate until maturity, unless called earlier if the contracts provide that option to the contract holders (usually institutions). There is little or no insurance risk for the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.14) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Amount of assets pledged to secure a debt instrument. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 + Details
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 + Details
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 + Details
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- Definition Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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