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Financial Instruments - Fair Value of Derivative Assets and Liabilities (Details) (USD $)
In Thousands, unless otherwise specified |
Sep. 30, 2013
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Dec. 31, 2012
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LNG Inventory Derivatives [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
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| Derivatives, Fair Value [Line Items] | ||
| LNG Inventory Derivative assets | $ 0 | $ 0 |
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LNG Inventory Derivatives [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
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| Derivatives, Fair Value [Line Items] | ||
| LNG Inventory Derivative assets | 0 | 0 |
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LNG Inventory Derivatives [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
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| Derivatives, Fair Value [Line Items] | ||
| LNG Inventory Derivative assets | 219 | 232 |
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LNG Inventory Derivatives [Member] | Prepaid Expenses And Other [Member]
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| Derivatives, Fair Value [Line Items] | ||
| LNG Inventory Derivative assets | 219 | 232 |
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LNG Inventory Derivatives [Member] | Prepaid Expenses And Other [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
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| Derivatives, Fair Value [Line Items] | ||
| LNG Inventory Derivative assets | 219 | 232 |
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Fuel Derivatives [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Derivative Liability, Fair Value, Net | 0 | 0 |
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Fuel Derivatives [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Fuel Derivatives liability | 0 | 0 |
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Fuel Derivatives [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Fuel Derivatives liability | 0 | 0 |
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Fuel Derivatives [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Fuel Derivatives liability | (227) | (98) |
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Fuel Derivatives [Member] | Prepaid Expenses And Other [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Fuel Derivatives liability | (227) | (98) |
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Interest Rate Contract [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Derivative Liability, Fair Value, Net | 0 | 0 |
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Interest Rate Contract [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Derivative Liability, Fair Value, Net | (26,424) | |
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Interest Rate Contract [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Derivative Liability, Fair Value, Net | 0 | 0 |
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Interest Rate Contract [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Derivative Liability, Fair Value, Net | (26,424) | |
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Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Derivative Liability, Fair Value, Net | (8,270) | (5,134) |
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Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Fair Value, Inputs, Level 2 [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Derivative Liability, Fair Value, Net | 56,039 | |
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Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Derivative Liability, Fair Value, Net | $ 56,039 |