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Debt - Texadian Uncommitted Credit Agreement (Details) - USD ($) | Feb. 20, 2015 | Jun. 12, 2013
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Texadian Uncommitted Credit Agreement |  |
Debt Instrument [Line Items] |  |
Line credit maximum borrowing amount |  | $ 50,000,000
Texadian Canada | Texadian Uncommitted Credit Agreement |  |
Debt Instrument [Line Items] |  |
Ownership interested pledged as collaterall |  | 65.00%
Texadian | Texadian Uncommitted Credit Agreement |  |
Debt Instrument [Line Items] |  |
Ownership interested pledged as collaterall |  | 100.00%
Texadian Uncommitted Credit Agreement | Letter of Credit |  |
Debt Instrument [Line Items] |  |
Line credit maximum borrowing amount | $ 200,000,000 |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + 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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