2.2.0.7 false Credit Facilities 11101 - Disclosure - Credit Facilities true false false false 1 USD false false Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Unit13 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Unit1 Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ 2 Credit Facilities 0 us-gaap_LineOfCreditFacilityAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 3 Credit Facilities 1 us-gaap_ScheduleOfLineOfCreditFacilitiesTextBlock us-gaap true na duration No definition available. false false false false false false false false false false false terselabel false 1 false false false false 0 0 <div> <div style="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;" align="left"><font style="display: inline; font-family: Times New Roman; font-size: 10pt; font-weight: bold;" class="_mt">11. Credit Facilities</font></div> <div style="text-indent: 0pt; display: block;"><br /></div> <div style="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt;" align="left"><font style="display: inline; font-family: Times New Roman; font-size: 10pt;" class="_mt">Effective July 30, 2010, a subsidiary of Gran Tierra, Solana, established a credit facility with BNP Paribas for a three-year term which may be extended or amended by agreement between the parties.  This reserve based facility has a maximum borrowing base up to $100 million and is supported by the present value of the petroleum reserves of the Company's two subsidiaries with operating branches in Colombia – Gran Tierra Energy Colombia Ltd. and Solana Petroleum Exploration (Colombia) Ltd.  The initial committed borrowing base is $20 million.  Amounts drawn down under the facility bear interest at the USD LIBOR rate plus 3.5%. In addition, a stand-by fee of 1.50% per annum is charged on the unutilized balance of the committed borrowing base and is included in general and administrative expense.  Under the terms of the facility, the Company is required to maintain and was in compliance with certain financial and operating covenants. As at September 30, 2010, the Company had not drawn down any amounts under this facility.</font></div> <div style="text-indent: 0pt; display: block;"><br /></div> </div> 11. Credit Facilities Effective July 30, 2010, a subsidiary of Gran Tierra, Solana, established a credit facility with BNP Paribas for a three-year term which false false false us-types:textBlockItemType textblock This element may be used to capture the complete disclosure pertaining to short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph f -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 false 1 2 false UnKnown UnKnown UnKnown false true