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Financial Instruments - Fair Value of Financial Instruments by Balance Sheet Location (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 9 Months Ended | 3 Months Ended | 3 Months Ended | 9 Months Ended | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Sep. 30, 2013
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Sep. 30, 2012
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Sep. 30, 2013
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Sep. 30, 2012
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Sep. 30, 2013
LNG Inventory Derivatives [Member]
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Sep. 30, 2013
LNG Inventory Derivatives [Member]
Fair Value, Inputs, Level 2 [Member]
Fair Value, Measurements, Recurring [Member]
|
Dec. 31, 2012
LNG Inventory Derivatives [Member]
Fair Value, Inputs, Level 2 [Member]
Fair Value, Measurements, Recurring [Member]
|
Sep. 30, 2013
LNG Inventory Derivatives [Member]
Other Current Liabilities [Member]
Fair Value, Inputs, Level 2 [Member]
Fair Value, Measurements, Recurring [Member]
|
Dec. 31, 2012
LNG Inventory Derivatives [Member]
Prepaid Expenses And Other [Member]
Fair Value, Inputs, Level 2 [Member]
Fair Value, Measurements, Recurring [Member]
|
Sep. 30, 2013
Fuel Derivatives [Member]
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Sep. 30, 2012
Fuel Derivatives [Member]
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Sep. 30, 2013
Fuel Derivatives [Member]
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Sep. 30, 2012
Fuel Derivatives [Member]
|
Sep. 30, 2013
Fuel Derivatives [Member]
Fair Value, Inputs, Level 2 [Member]
|
Dec. 31, 2012
Fuel Derivatives [Member]
Fair Value, Inputs, Level 2 [Member]
|
Dec. 31, 2012
Fuel Derivatives [Member]
Other Current Liabilities [Member]
Fair Value, Inputs, Level 2 [Member]
Fair Value, Measurements, Recurring [Member]
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Sep. 30, 2013
Fuel Derivatives [Member]
Prepaid Expenses And Other [Member]
Fair Value, Inputs, Level 2 [Member]
Fair Value, Measurements, Recurring [Member]
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|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |||||||||||||||||
| Derivative gain (loss) | $ (22,335) | $ 287 | $ 55,706 | $ (288) | $ 14 | $ (55) | $ 287 | $ (3) | $ (288) | ||||||||
| Derivative Assets, Current | 186 | 237 | 186 | 237 | |||||||||||||
| Derivative Liabilities, Current | $ (283) | $ (98) | $ (98) | $ (283) | |||||||||||||