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Derivative Instruments - Fair Value of Derivative Instruments by Balance Sheet Location (Details) (USD $)
In Thousands, unless otherwise specified
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Dec. 31, 2014
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Dec. 31, 2013
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| LNG Inventory Derivatives [Member] |
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| Derivatives, Fair Value [Line Items] |
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| Derivative Assets (Liabilities), at Fair Value, Net |
$ 1,216us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_DerivativeInstrumentRiskAxis
= cqp_LngInventoryDerivativesMember
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$ (161)us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_DerivativeInstrumentRiskAxis
= cqp_LngInventoryDerivativesMember
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| LNG Inventory Derivatives [Member] | Prepaid Expenses and Other Current Assets [Member] |
|
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| Derivatives, Fair Value [Line Items] |
|
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| Derivative Assets (Liabilities), at Fair Value, Net |
1,216us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= cqp_LngInventoryDerivativesMember
|
(161)us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= cqp_LngInventoryDerivativesMember
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| Fuel Derivatives [Member] |
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| Derivatives, Fair Value [Line Items] |
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| Derivative Assets (Liabilities), at Fair Value, Net |
0us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_DerivativeInstrumentRiskAxis
= cqp_FuelDerivativesMember
|
27us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_DerivativeInstrumentRiskAxis
= cqp_FuelDerivativesMember
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| Fuel Derivatives [Member] | Prepaid Expenses and Other Current Assets [Member] |
|
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| Derivatives, Fair Value [Line Items] |
|
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| Derivative Assets (Liabilities), at Fair Value, Net |
0us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= cqp_FuelDerivativesMember
|
27us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= cqp_FuelDerivativesMember
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| Term Gas Supply Derivatives [Member] |
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| Derivatives, Fair Value [Line Items] |
|
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| Derivative Assets (Liabilities), at Fair Value, Net |
342us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
|
0us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
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| Term Gas Supply Derivatives [Member] | Prepaid Expenses and Other Current Assets [Member] |
|
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| Derivatives, Fair Value [Line Items] |
|
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| Derivative Assets (Liabilities), at Fair Value, Net |
76us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
|
0us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
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| Term Gas Supply Derivatives [Member] | Noncurrent Derivative Assets [Member] |
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| Derivatives, Fair Value [Line Items] |
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| Derivative Assets (Liabilities), at Fair Value, Net |
586us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= cqp_NoncurrentDerivativeAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
|
0us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= cqp_NoncurrentDerivativeAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
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| Term Gas Supply Derivatives [Member] | Other Current Liabilities [Member] |
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| Derivatives, Fair Value [Line Items] |
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| Derivative Assets (Liabilities), at Fair Value, Net |
(53)us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherCurrentLiabilitiesMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
|
0us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherCurrentLiabilitiesMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
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| Term Gas Supply Derivatives [Member] | Other Noncurrent Liabilities [Member] |
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| Derivatives, Fair Value [Line Items] |
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| Derivative Assets (Liabilities), at Fair Value, Net |
(267)us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherNoncurrentLiabilitiesMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
|
0us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherNoncurrentLiabilitiesMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
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| Not Designated as Hedging Instrument [Member] | Noncurrent Derivative Assets [Member] |
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| Derivatives, Fair Value [Line Items] |
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| Interest Rate Derivative Assets, at Fair Value |
11,158us-gaap_InterestRateDerivativeAssetsAtFairValue
/ us-gaap_BalanceSheetLocationAxis
= cqp_NoncurrentDerivativeAssetsMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember
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98,123us-gaap_InterestRateDerivativeAssetsAtFairValue
/ us-gaap_BalanceSheetLocationAxis
= cqp_NoncurrentDerivativeAssetsMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember
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| Not Designated as Hedging Instrument [Member] | Other Current Liabilities [Member] |
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| Derivatives, Fair Value [Line Items] |
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| Interest Rate Derivative Liabilities, at Fair Value |
$ (23,194)us-gaap_InterestRateDerivativeLiabilitiesAtFairValue
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherCurrentLiabilitiesMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember
|
$ (13,484)us-gaap_InterestRateDerivativeLiabilitiesAtFairValue
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherCurrentLiabilitiesMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember
|