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Long-Term Debt - Additional Information - USD Term Loans (Detail)
6 Months Ended
Jun. 30, 2016
USD ($)
Subsidiary
Dec. 31, 2015
USD ($)
Feb. 28, 2015
USD ($)
Debt Instrument [Line Items]      
Number of subsidiaries with outstanding term loans guaranteed | Subsidiary 3    
Partnership's interest owned in subsidiaries 50.00%    
Carrying amount of debt $ 3,241,231,000 $ 3,363,874,000  
U.S. Dollar-denominated Term Loans due through 2018 [Member]      
Debt Instrument [Line Items]      
Carrying amount of debt $ 120,800,000    
Debt instrument collateral, description These term loans are collateralized by first-priority mortgages on the three shuttle tankers to which the loans relate, together with other related security.    
Frequency of paying U.S. Dollar-denominated Term Loans Quarterly and semi-annual payments    
U.S. Dollar-denominated Term Loans due through 2018 [Member] | Guarantee of Indebtedness of Others [Member]      
Debt Instrument [Line Items]      
Partnership's interest owned in subsidiaries 50.00%    
Guaranteed term loans $ 28,500,000    
U.S. Dollar-denominated Term Loans due through 2018 [Member] | Guarantee of Indebtedness of Others [Member] | Corporate Joint Venture [Member]      
Debt Instrument [Line Items]      
Guaranteed term loans 60,400,000    
U.S. Dollar-denominated Term Loans due through 2018 [Member] | Guarantee of Indebtedness of Others [Member] | Teekay Corporation [Member]      
Debt Instrument [Line Items]      
Guaranteed term loans $ 31,900,000    
U.S. Dollar-denominated Term Loans due through 2018 [Member] | Guarantee of Indebtedness of Others [Member] | Partnership [Member]      
Debt Instrument [Line Items]      
Number of subsidiaries with outstanding term loans guaranteed | Subsidiary 2    
U.S. Dollar denominated Term Loans due through 2028 [Member]      
Debt Instrument [Line Items]      
Carrying amount of debt $ 2,100,000,000    
U.S. Dollar denominated Term Loans due through 2028 [Member] | Guarantee of Indebtedness of Others [Member]      
Debt Instrument [Line Items]      
Guaranteed term loans $ 1,800,000,000    
U.S. Dollar-denominated Term Loans due through 2025 [Member]      
Debt Instrument [Line Items]      
Debt instrument collateral, description These term loans have varying maturities through 2025 and are collateralized by first-priority mortgages on the vessels to which the loans relate, together with other related security.    
Frequency of paying U.S. Dollar-denominated Term Loans Quarterly or semi-annual payments    
U.S. Dollar-denominated Term Loans due through 2025 [Member] | Guarantee of Indebtedness of Others [Member] | Teekay Corporation [Member]      
Debt Instrument [Line Items]      
Guaranteed term loans $ 282,600,000    
Term Loans Due 2022 [Member]      
Debt Instrument [Line Items]      
Final bullet payments 29,000,000    
U.S. Dollar-denominated Term Loans due through 2023 [Member]      
Debt Instrument [Line Items]      
Final bullet payments 29,100,000    
Senior bonds mature in June 2024 [Member]      
Debt Instrument [Line Items]      
Carrying amount of debt $ 25,400,000    
Debt instrument collateral, description The bonds are collateralized by first-priority mortgage on the Dampier Spirit FSO unit to which the bonds relate, together with other related security.    
Fixed interest rate of bonds 4.27%    
Senior bonds issued face amount     $ 30,000,000