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Subsequent Events (Details) (USD $)
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0 Months Ended | 1 Months Ended | 3 Months Ended | 9 Months Ended | 0 Months Ended | 12 Months Ended | 0 Months Ended | 0 Months Ended | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Sep. 18, 2013
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Dec. 31, 2012
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Sep. 30, 2013
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Aug. 31, 2012
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Sep. 30, 2013
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Aug. 31, 2012
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Nov. 30, 2012
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Nov. 30, 2011
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Nov. 06, 2013
Subsequent Event [Member]
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Oct. 04, 2013
Subsequent Event [Member]
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Nov. 30, 2011
Line of Credit [Member]
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Nov. 06, 2013
Common Stock [Member]
Subsequent Event [Member]
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Oct. 29, 2010
Mowood LLC [Member]
Revolving Note Payable [Member]
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Oct. 15, 2013
Mowood LLC [Member]
Revolving Note Payable [Member]
Subsequent Event [Member]
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Sep. 30, 2013
Mowood LLC [Member]
Revolving Note Payable [Member]
Line of Credit [Member]
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Oct. 29, 2011
Mowood LLC [Member]
Revolving Note Payable [Member]
Line of Credit [Member]
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Oct. 15, 2013
Mowood LLC [Member]
Revolving Note Payable [Member]
Line of Credit [Member]
Subsequent Event [Member]
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Nov. 06, 2013
Arc Logistics Partners LP [Member]
Subsequent Event [Member]
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Nov. 05, 2013
Arc Logistics Partners LP [Member]
Subsequent Event [Member]
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Sep. 30, 2013
Arc Logistics Partners LP [Member]
Subsequent Event [Member]
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Sep. 30, 2013
Arc Logistics Partners LP [Member]
Gulf LNG Holdings [Member]
Subsequent Event [Member]
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Sep. 30, 2013
Arc Logistics Partners LP [Member]
Gulf LNG Holdings [Member]
Subsequent Event [Member]
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Dec. 31, 2012
Lightfoot Capital Partners LP [Member]
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Sep. 30, 2013
Lightfoot Capital Partners LP [Member]
Subsequent Event [Member]
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Sep. 30, 2013
Lightfoot Capital Partners GP [Member]
Subsequent Event [Member]
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| Subsequent Event [Line Items] | |||||||||||||||||||||||||
| Common Stock, Dividends, Per Share, Declared | $ 0.125 | $ 0.125 | $ 0.110 | $ 0.375 | $ 0.330 | ||||||||||||||||||||
| Maximum borrowing base of revolving note payable | $ 10,000,000 | $ 1,300,000 | $ 1,500,000 | ||||||||||||||||||||||
| Description of variable rate basis | LIBOR | ||||||||||||||||||||||||
| Accrued interest on outstanding balance | 0.75% | 4.18% | 4.00% | 0.50% | |||||||||||||||||||||
| Debt Instrument, Interest Rate at Period End | 3.75% | ||||||||||||||||||||||||
| Payments of Ordinary Dividends | 6,036,072 | 1,952,477 | (2,989,623) | ||||||||||||||||||||||
| Shares issued during period | 14,950,000 | 68,617 | 4,293 | 5,146,264 | 6,000,000 | ||||||||||||||||||||
| Stock Issued During Period, Shares, Acquisitions | 900,000 | ||||||||||||||||||||||||
| Noncontrolling Interest, Ownership Percentage by Parent | 10.30% | 9.70% | 6.70% | 1.50% | |||||||||||||||||||||
| Common Stock, Par or Stated Value Per Share | $ 0.001 | $ 0.001 | $ 0.001 | $ 19.00 | |||||||||||||||||||||
| Equity Method Investment, Ownership Percentage | 42.90% | 6.70% | |||||||||||||||||||||||
| Net offering proceeds | 102,300,000 | ||||||||||||||||||||||||
| Business Acquisition, Equity Interest Issued or Issuable, Value Assigned | 73,000,000 | ||||||||||||||||||||||||
| Accounts Payable, Current | 3,000,000 | ||||||||||||||||||||||||
| distributions payable to non-controlling interest | $ 29,600,000 | ||||||||||||||||||||||||