| 
           LNG Inventory (Details) (USD $) 
         | 
        
           Dec. 31, 2011
 
          MMBTU 
         | 
        
           Dec. 31, 2010
 
          MMBTU 
         | 
        
           Dec. 31, 2009 
         | 
      
|---|---|---|---|
| Inventory, Net [Abstract] | |||
| LNG inventory | 1,995,000 | 326,000 | |
| Inventory, Net | $ 6,562,000 | $ 1,212,000 | |
| Inventory Adjustments | $ 11,000,000 | $ 300,000 | $ 3,500,000 | 
| X | ||||||||||
| 
             
- Definition 
          LNG inventory No definition available. 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          Certain changes made in the current period to the value and amount of inventory reported. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          Carrying amount (lower of cost or market) as of the balance sheet date of inventories less all valuation and other allowances. Excludes noncurrent inventory balances (expected to remain on hand past one year or one operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  | 
        
| X | ||||||||||
| 
             
- Details 
          
  |