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Equity Method Investments - Teekay LNG-Marubeni Joint Venture - Additional Information (Detail)
$ in Thousands, € in Millions
 1 Months Ended 12 Months Ended
Jul. 31, 2013
USD ($)
Dec. 31, 2015
USD ($)
Vessel
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Dec. 31, 2015
EUR (€)
Schedule of Equity Method Investments [Line Items]          
Percentage of ownership in joint venture   100.00%     100.00%
Reducing principal amount of interest rate swaps   $ 76,100     € 70.1
Prepayments of long-term debt   $ 90,000 $ 608,501 $ 270,000  
Interest rate swap agreements [Member]          
Schedule of Equity Method Investments [Line Items]          
Derivative, term of contract 8 years        
Notional Amount $ 160,000        
Reducing principal amount of interest rate swaps $ 70,400        
Interest rate swap agreements [Member] | Derivative Instrument Interest Payment First Two Year [Member]          
Schedule of Equity Method Investments [Line Items]          
LIBOR-based interest for the payment of a fixed rate of interest 2.20%        
Interest rate swap agreements [Member] | Derivative Instrument Interest Payment Period Last Six Year [Member]          
Schedule of Equity Method Investments [Line Items]          
LIBOR-based interest for the payment of a fixed rate of interest 2.36%        
Teekay LNG-Marubeni Joint Venture [Member]          
Schedule of Equity Method Investments [Line Items]          
Percentage of ownership in joint venture   52.00%     52.00%
Number of vessels | Vessel   6      
Refinancing of its short-term loan facilities by entering into long-term debt facilities $ 963,000        
Teekay LNG-Marubeni Joint Venture [Member] | Loan Facility [Member]          
Schedule of Equity Method Investments [Line Items]          
Number of vessels | Vessel   4      
Prepayments of long-term debt   $ 30,000      
Teekay LNG-Marubeni Joint Venture [Member] | Contract Termination [Member] | Magellan Spirit [Member]          
Schedule of Equity Method Investments [Line Items]          
Number of vessels | Vessel   1      
Number of consecutive days off-hire   30 days      
Teekay LNG-Marubeni Joint Venture [Member] | Collateral Pledged [Member]          
Schedule of Equity Method Investments [Line Items]          
Restricted cash account   $ 7,500      
Teekay Lng [Member] | Teekay LNG-Marubeni Joint Venture [Member]          
Schedule of Equity Method Investments [Line Items]          
Carrying value of guarantee liability $ 700 $ 200 $ 400