| 
           Long-Term Debt Senior Notes (Details) (USD $) 
         | 
        3 Months Ended | 3 Months Ended | |||
|---|---|---|---|---|---|
| 
           Mar. 31, 2012
 
          Senior Notes 
         | 
        
           Mar. 31, 2013
 
          Sabine Pass LNG, LP [Member]
 
          2016 Senior Notes [Member] 
         | 
        
           Mar. 31, 2013
 
          Sabine Pass LNG, LP [Member]
 
          2020 Notes 
         | 
        
           Mar. 31, 2013
 
          Sabine Pass LNG, LP [Member]
 
          Senior Notes
 
          Rate 
         | 
        
           Mar. 31, 2013
 
          Sabine Pass LNG, LP [Member]
 
          Senior Notes
 
          2020 Notes 
         | 
      |
| Debt Instrument [Line Items] | |||||
| Debt instrument principal amount | $ 1,665,500,000 | $ 420,000,000 | |||
| Debt instrument stated rate (percent) | 7.50% | 6.50% | |||
| Debt instrument fixed charge coverage ratio | 2 | ||||
| Distribution Made to Member or Limited Partner, Cash Distributions Paid | $ 69,400,000 | $ 76,700,000 | |||
| X | ||||||||||
| 
             
- Definition 
          Debt Instrument, Fixed Charge, Coverage Ratio No definition available. 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          Interest rate stated in the contractual debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  | 
        
| X | ||||||||||
| 
             
- Details 
          
  | 
        
| X | ||||||||||
| 
             
- Definition 
          The amount of cash distributions paid to a common shareholder or unit-holder by a LLC or LP. No definition available. 
  |