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Description of Equity Interests (Details) (USD $)
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0 Months Ended | 1 Months Ended | 9 Months Ended | 12 Months Ended | 9 Months Ended | 1 Months Ended | 9 Months Ended | 1 Months Ended | 3 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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May 31, 2007
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Sep. 30, 2012
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Sep. 30, 2011
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Jan. 31, 2011
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Sep. 30, 2012
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Dec. 31, 2011
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Sep. 30, 2012
General Partner
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Sep. 30, 2012
General Partner
Minimum
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Sep. 30, 2012
General Partner
Maximum
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Jun. 30, 2012
Capital Unit, Class B
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May 31, 2012
Capital Unit, Class B
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Sep. 30, 2012
Capital Unit, Class B
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Dec. 31, 2011
Capital Unit, Class B
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Jun. 30, 2012
Blackstone
Capital Unit, Class B
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May 31, 2012
Blackstone
Capital Unit, Class B
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May 31, 2012
Cheniere Energy, Inc.
Capital Unit, Class B
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Jul. 31, 2012
Issuance of Equity
Blackstone
Capital Unit, Class B
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Sep. 30, 2012
Capital Unit, Class B
Chenier Energy Partners, LP [Member]
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| Class of Stock [Line Items] | ||||||||||||||||||
| Subordinated units contributed by Cheniere LNG Holdings (shares) | 135,383,831 | |||||||||||||||||
| Minimum quarterly distributions under each common unit ($ per share) | $ 0.425 | |||||||||||||||||
| Percentage of distributions to which general partner interest is entitled (percent) | 2.00% | 2.00% | 2.00% | |||||||||||||||
| Range of higher percentage incentives (percent) | 15.00% | 50.00% | ||||||||||||||||
| Common units authorized for sale under program (shares) | 1,000,000 | |||||||||||||||||
| Units sold in private placement (shares) | 1,100,000 | 500,000 | 500,000 | |||||||||||||||
| Price per Common Unit | 25.07 | 15.25 | 15.00 | |||||||||||||||
| Net proceeds from units sold under private placement | $ 11,100,000 | $ 9,000,000 | ||||||||||||||||
| Commissions paid for sale of partner units | 300,000 | |||||||||||||||||
| Common units sold in public offering (shares) | 8,000,000 | 3,000,000 | ||||||||||||||||
| Net proceeds from sale of common units in public offereing | 194,000,000 | 60,000,000 | 239,913,000 | 34,940,000 | 0 | |||||||||||||
| Additional proceeds from general partner in connection with exercise of its right | 34,900,000 | 1,500,000 | ||||||||||||||||
| Value of newly issued shares to be purchased | 1,500,000,000 | 500,000,000 | 500,000,000 | |||||||||||||||
| Value of equity purchase commitment in Class B units | 1,500,000,000 | |||||||||||||||||
| Periodic increase in Class B units conversion value (percent) | 3.50% | |||||||||||||||||
| Class B unitholders, units issued | 100,000,002 | 100,000,002 | ||||||||||||||||
| Proceeds from issuance of Class B Units | $ 1,500,000,000 | |||||||||||||||||