Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details)

v2.4.0.6
Summary of Significant Accounting Policies (Details)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Summary of Significant Accounting Policies [Line Items]      
Cash equivalents maturity period 3 months    
Advanced capacity reservation fees amortization period 10 years    
Retained percentage of LNG delivered 2.00%    
Property lease term 90 years    
Stock options, warrants and unvested stock [Member]
     
Summary of Significant Accounting Policies [Line Items]      
Antidilutivesecurities excluded from computation of earnings per share 4.4 2.4 5.8
Common Shares
     
Summary of Significant Accounting Policies [Line Items]      
Antidilutivesecurities excluded from computation of earnings per share   7.5 7.5