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Financial Instruments Financial Instruments - Fair Value of Derivative Assets and Liabilities (Details) (USD $)
In Thousands, unless otherwise specified
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Jun. 30, 2014
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Dec. 31, 2013
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LNG Inventory Derivatives [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Derivative Assets (Liabilities), at Fair Value, Net |
$ 10
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$ (171)
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LNG Inventory Derivatives [Member] | Fair Value, Inputs, Level 1 [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Derivative Assets (Liabilities), at Fair Value, Net |
0
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0
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LNG Inventory Derivatives [Member] | Fair Value, Inputs, Level 2 [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Derivative Assets (Liabilities), at Fair Value, Net |
10
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(171)
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LNG Inventory Derivatives [Member] | Fair Value, Inputs, Level 3 [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Derivative Assets (Liabilities), at Fair Value, Net |
0
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0
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Fuel Derivatives [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Derivative Assets (Liabilities), at Fair Value, Net |
97
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126
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Fuel Derivatives [Member] | Fair Value, Inputs, Level 1 [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Derivative Assets (Liabilities), at Fair Value, Net |
0
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0
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Fuel Derivatives [Member] | Fair Value, Inputs, Level 2 [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Derivative Assets (Liabilities), at Fair Value, Net |
97
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126
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Fuel Derivatives [Member] | Fair Value, Inputs, Level 3 [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Derivative Assets (Liabilities), at Fair Value, Net |
0
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0
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Term Gas Supply Derivatives [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Derivative Assets (Liabilities), at Fair Value, Net |
0
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0
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Term Gas Supply Derivatives [Member] | Fair Value, Inputs, Level 1 [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Derivative Assets (Liabilities), at Fair Value, Net |
0
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0
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Term Gas Supply Derivatives [Member] | Fair Value, Inputs, Level 2 [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Derivative Assets (Liabilities), at Fair Value, Net |
0
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0
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Term Gas Supply Derivatives [Member] | Fair Value, Inputs, Level 3 [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Derivative Assets (Liabilities), at Fair Value, Net |
0
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0
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Interest Rate Contract [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Derivative Assets (Liabilities), at Fair Value, Net |
7,130
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84,639
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Interest Rate Contract [Member] | Fair Value, Inputs, Level 1 [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Derivative Assets (Liabilities), at Fair Value, Net |
0
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0
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Interest Rate Contract [Member] | Fair Value, Inputs, Level 2 [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Derivative Assets (Liabilities), at Fair Value, Net |
7,130
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84,639
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Interest Rate Contract [Member] | Fair Value, Inputs, Level 3 [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Derivative Assets (Liabilities), at Fair Value, Net |
$ 0
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$ 0
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