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Description of Equity Interests (Details) (USD $)
In Millions, except Share data, unless otherwise specified |
0 Months Ended | 1 Months Ended | 12 Months Ended | 0 Months Ended | 1 Months Ended | 12 Months Ended | 0 Months Ended | 1 Months Ended | 0 Months Ended | 12 Months Ended | 0 Months Ended | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Mar. 26, 2007
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Sep. 30, 2012
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May 31, 2012
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Sep. 30, 2011
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2012
Class B Unit [Member]
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Mar. 26, 2007
Common Units
|
Sep. 30, 2012
Common Units
|
Sep. 30, 2011
Common Units
|
Jan. 31, 2011
Common Units
|
Dec. 31, 2012
Common Units
|
Dec. 31, 2011
Common Units
|
May 31, 2007
Cheniere Subsidiary Holdings, LLC [Member]
Subordinated Units
|
Sep. 30, 2011
Cheniere Common Units Holding, LLC [Member]
Common Units
|
May 31, 2012
Blackstone CQP Holdco LP [Member]
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May 31, 2012
Blackstone CQP Holdco LP [Member]
Class B Unit [Member]
|
May 31, 2012
Cheniere Energy, Inc. [Member]
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May 31, 2012
Cheniere Energy, Inc. [Member]
Class B Unit [Member]
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Mar. 26, 2007
General Partner [Member]
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Dec. 31, 2012
General Partner [Member]
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Dec. 31, 2011
General Partner [Member]
|
Mar. 26, 2007
General Partner [Member]
Minimum [Member]
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Mar. 26, 2007
General Partner [Member]
Maximum [Member]
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| Class of Stock [Line Items] | ||||||||||||||||||||||||
| Partners' Capital Account, Units, Sold in Private Placement | 133,300,000 | 135,383,831 | 1,100,000 | 100,000,000 | 33,300,000 | 3,302,045 | ||||||||||||||||||
| Partners Capital Account, Units, Sold In Public Offering, Unit Price | $ 21.00 | $ 15.00 | $ 25.07 | $ 15.25 | ||||||||||||||||||||
| Distributions Per General Partnership Unit Outstanding | $ 0.425 | $ 0.489 | ||||||||||||||||||||||
| Proceeds from sale of partnership units | $ 194.0 | $ 2,000.0 | $ 60.0 | $ 11.1 | $ 9.0 | $ 1,500.0 | $ 500.0 | |||||||||||||||||
| Payments for Commissions | 0.3 | |||||||||||||||||||||||
| Proceeds from Partnership Contribution | 45.1 | 1.5 | ||||||||||||||||||||||
| Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest | 2.00% | |||||||||||||||||||||||
| Incentive Distribution, Distribution Per Unit | 15.00% | 50.00% | ||||||||||||||||||||||
| At-the-Market Sale Program, Authorized Number of Units | 1,000,000 | |||||||||||||||||||||||
| Partners' Capital Account, Units, Sold in Public Offering | 13,500,000 | 5,054,164 | 8,000,000 | 3,000,000 | 500,000 | 500,000 | ||||||||||||||||||
| Unit Purchase Agreement, Units To Be Purchased | $ 1,500.0 | $ 500.0 | ||||||||||||||||||||||
| Partnership Units, Conversion Ratio, Quarterly Compounded Rate | 3.50% | |||||||||||||||||||||||