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Long Lived Assets Impairment (Detail Textuals) (USD $)	12 Months Ended
Long Lived Assets Impairment (Detail Textuals) (USD $)	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Impairment or Disposal of Tangible Assets Disclosure [Abstract]
Asset Impairment Charges	$ 0	$ 0	$ 1,311,000
Impaired Long-Lived Assets Held and Used [Line Items]
Depreciation, Depletion and Amortization, Nonproduction	162,300,000	125,358,000	111,625,000
Sabine Plant [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Gross Margin	2,000,000	2,700,000
Depreciation, Depletion and Amortization, Nonproduction	28,900,000
Property Plant And Equipment Net 1	$ 20,000,000

The charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value.

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- Definition

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

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