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Financial Instruments - Summary of Financing Receivables (Parenthetical) (Detail) (Teekay Tangguh Borrower LLC [Member], USD $)
In Millions, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Teekay LNG [Member]
   
Financing Receivable, Recorded Investment [Line Items]    
Ownership percentage 99.00%  
Teekay BLT Corporation [Member]
   
Financing Receivable, Recorded Investment [Line Items]    
Ownership percentage 70.00%  
Loans to equity accounted investees and joint venture partners carrying value $ 24.0 $ 24.0