Annual report pursuant to Section 13 and 15(d)

Unitholders' Equity (Details)

v2.4.1.9
Unitholders' Equity (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
12 Months Ended 1 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
May 31, 2013
Other Ownership Interests [Line Items]        
Proceeds from sale of partnership common and general partner units $ 0us-gaap_ProceedsFromSaleOfInterestInPartnershipUnit $ 375,897us-gaap_ProceedsFromSaleOfInterestInPartnershipUnit $ 250,022us-gaap_ProceedsFromSaleOfInterestInPartnershipUnit  
Maximum [Member]        
Other Ownership Interests [Line Items]        
Number of days after quarter end distribution is paid 45 days      
Common Units [Member]        
Other Ownership Interests [Line Items]        
Distributions Per Limited Partnership Unit Outstanding, Basic $ 0.425us-gaap_DistributionsPerLimitedPartnershipUnitOutstanding
/ us-gaap_CapitalUnitsByClassAxis
= cqp_CommonUnitsMember
     
Sale of common and general partner units, units   17,590us-gaap_PartnersCapitalAccountUnitsSaleOfUnits
/ us-gaap_CapitalUnitsByClassAxis
= cqp_CommonUnitsMember
8,485us-gaap_PartnersCapitalAccountUnitsSaleOfUnits
/ us-gaap_CapitalUnitsByClassAxis
= cqp_CommonUnitsMember
 
General Partner [Member]        
Other Ownership Interests [Line Items]        
Sale of common and general partner units, units   604us-gaap_PartnersCapitalAccountUnitsSaleOfUnits
/ us-gaap_CapitalUnitsByClassAxis
= us-gaap_GeneralPartnerMember
2,894us-gaap_PartnersCapitalAccountUnitsSaleOfUnits
/ us-gaap_CapitalUnitsByClassAxis
= us-gaap_GeneralPartnerMember
 
General Partner [Member] | Minimum [Member]        
Other Ownership Interests [Line Items]        
Distributions entitled by General Partner, Percentage 2.00%cqp_DistributionsentitledbyGeneralPartnerPercentage
/ us-gaap_CapitalUnitsByClassAxis
= us-gaap_GeneralPartnerMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
     
Incentive Distribution, Quarterly Distribution Additional Target Percentage 15.00%cqp_IncentiveDistributionQuarterlyDistributionAdditionalTargetPercentage
/ us-gaap_CapitalUnitsByClassAxis
= us-gaap_GeneralPartnerMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
     
General Partner [Member] | Maximum [Member]        
Other Ownership Interests [Line Items]        
Incentive Distribution, Quarterly Distribution Additional Target Percentage 50.00%cqp_IncentiveDistributionQuarterlyDistributionAdditionalTargetPercentage
/ us-gaap_CapitalUnitsByClassAxis
= us-gaap_GeneralPartnerMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
     
Class B Units [Member]        
Other Ownership Interests [Line Items]        
Partnership Units, Conversion Ratio, Quarterly Compounded Rate 0.035cqp_PartnershipUnitsConversionRatioQuarterlyCompoundedRate
/ us-gaap_CapitalUnitsByClassAxis
= us-gaap_CapitalUnitClassBMember
     
Class B Units [Member] | Blackstone CQP Holdco LP [Member]        
Other Ownership Interests [Line Items]        
Proceeds from sale of partnership common and general partner units     1,500,000us-gaap_ProceedsFromSaleOfInterestInPartnershipUnit
/ us-gaap_CapitalUnitsByClassAxis
= us-gaap_CapitalUnitClassBMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cqp_BlackstoneCqpHoldcoLpMember
 
Partnership Units, Accreted Conversion Ratio 1.39cqp_PartnershipUnitsAccretedConversionRatio
/ us-gaap_CapitalUnitsByClassAxis
= us-gaap_CapitalUnitClassBMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cqp_BlackstoneCqpHoldcoLpMember
     
Class B Units [Member] | Cheniere Energy, Inc. [Member]        
Other Ownership Interests [Line Items]        
Proceeds from sale of partnership common and general partner units     $ 500,000us-gaap_ProceedsFromSaleOfInterestInPartnershipUnit
/ us-gaap_CapitalUnitsByClassAxis
= us-gaap_CapitalUnitClassBMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cqp_CheniereEnergyIncMember
$ 180,000us-gaap_ProceedsFromSaleOfInterestInPartnershipUnit
/ us-gaap_CapitalUnitsByClassAxis
= us-gaap_CapitalUnitClassBMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cqp_CheniereEnergyIncMember
Sale of common and general partner units, units       12,000us-gaap_PartnersCapitalAccountUnitsSaleOfUnits
/ us-gaap_CapitalUnitsByClassAxis
= us-gaap_CapitalUnitClassBMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cqp_CheniereEnergyIncMember
Class B Units [Member] | Cheniere Energy Partners LP Holdings, LLC [Member]        
Other Ownership Interests [Line Items]        
Partnership Units, Accreted Conversion Ratio 1.41cqp_PartnershipUnitsAccretedConversionRatio
/ us-gaap_CapitalUnitsByClassAxis
= us-gaap_CapitalUnitClassBMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cqp_CheniereEnergyPartnersLPHoldingsLLCMember
     
Class B Units [Member] | Maximum [Member]        
Other Ownership Interests [Line Items]        
Expected conversion period of Class B units to common units after substantial completion date of Train 3 90 days