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Long-Term Debt - Additional Information (Detail) | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  |  | 12 Months Ended |  | 12 Months Ended |
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Dec. 31, 2012 USD ($) | Dec. 31, 2011 USD ($) | Dec. 31, 2010 USD ($) | Dec. 31, 2012 Minimum [Member] | Dec. 31, 2012 Maximum [Member] | Dec. 31, 2012 Teekay Nakilat Corporation [Member] | Dec. 31, 2012 Teekay Tangguh Joint Venture [Member] | Dec. 31, 2012 Revolving Credit Facility [Member] USD ($) CreditFacility | Dec. 31, 2011 Revolving Credit Facility [Member] USD ($) | Dec. 31, 2012 U.S. Dollar-denominated Term Loan due through 2018 [Member] USD ($) | Dec. 31, 2011 U.S. Dollar-denominated Term Loan due through 2018 [Member] USD ($) | Dec. 31, 2012 U.S. Dollar-denominated Term Loan due through 2018 [Member] Teekay Nakilat Corporation [Member] | Dec. 31, 2012 U.S. Dollar-denominated Term Loan due through 2019 [Member] Teekay Nakilat Corporation [Member] USD ($) | Dec. 31, 2011 U.S. Dollar-denominated Term Loan due through 2019 [Member] Teekay Nakilat Corporation [Member] USD ($) | Dec. 31, 2012 U.S. Dollar-denominated Term Loan one due through 2021 [Member] Teekay Tangguh Joint Venture [Member] USD ($) | Dec. 31, 2011 U.S. Dollar-denominated Term Loan one due through 2021 [Member] Teekay Tangguh Joint Venture [Member] USD ($) | Dec. 31, 2012 U.S. Dollar-denominated Term Loan one due through 2021 [Member] Teekay Tangguh Joint Venture [Member] First Tranche [Member] | Dec. 31, 2012 U.S. Dollar-denominated Term Loan one due through 2021 [Member] Teekay Tangguh Joint Venture [Member] Second Tranche [Member] USD ($) | Dec. 31, 2012 U.S. Dollar-denominated Term Loan two due through 2021 [Member] USD ($) | Dec. 31, 2011 U.S. Dollar-denominated Term Loan two due through 2021 [Member] USD ($) | Dec. 31, 2012 U.S. Dollar-denominated Term Loan two due through 2021 [Member] First Tranche [Member] | Dec. 31, 2012 U.S. Dollar-denominated Term Loan two due through 2021 [Member] Second Tranche [Member] USD ($) | Dec. 31, 2012 Unsecured Debt [Member] Teekay Nakilat Corporation [Member] USD ($) | Dec. 31, 2011 Unsecured Debt [Member] Teekay Nakilat Corporation [Member] USD ($) | Dec. 31, 2012 Euro-denominated Term Loans due through 2023 [Member] USD ($) | Dec. 31, 2011 Euro-denominated Term Loans due through 2023 [Member] USD ($) | Dec. 31, 2009 Euro-denominated Term Loans due through 2023 [Member] USD ($) | Dec. 31, 2012 Euro-denominated Term Loans due through 2023 [Member] EUR (€) | Dec. 31, 2012 Euro-denominated Term Loans due through 2023 [Member] Minimum [Member] | Dec. 31, 2012 Euro-denominated Term Loans due through 2023 [Member] Maximum [Member] | Dec. 31, 2012 Norwegian Kroner denominated bonds due May 2017 [Member] USD ($) | Dec. 31, 2012 Norwegian Kroner denominated bonds due May 2017 [Member] NOK | May 31, 2012 Norwegian Kroner denominated bonds due May 2017 [Member] NOK
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available long-term revolving credit facilities |  |  |  |  |  |  |  | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings provided under revolving credit facilities |  |  |  |  |  |  |  | $ 461,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Undrawn amount of revolving credit facilities |  |  |  |  |  |  |  | 381,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount reduced under revolving credit facilities, 2013 |  |  |  |  |  |  |  | 33,700,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount reduced under revolving credit facilities, 2014 |  |  |  |  |  |  |  | 34,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount reduced under revolving credit facilities, 2015 |  |  |  |  |  |  |  | 84,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount reduced under revolving credit facilities, 2016 |  |  |  |  |  |  |  | 27,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount reduced under revolving credit facilities, 2017 |  |  |  |  |  |  |  | 28,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount reduced under revolving credit facilities, thereafter |  |  |  |  |  |  |  | 253,600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Months required to repay all borrowings |  |  |  |  |  |  |  | 12 months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of vessels |  |  |  |  |  |  |  | Seven |  | Five |  |  | Three |  | Two | Two |  |  | Two |  |  |  |  |  | Two | Two |  |  |  |  |  |  |
Long-term debt | 1,413,353,000 | 1,315,231,000 |  |  |  |  |  | 80,000,000 | 49,274,000 | 112,264,000 | 120,796,000 |  | 321,851,000 | 346,768,000 | 309,984,000 | 321,337,000 |  |  | 108,799,000 | 114,868,000 |  |  | 13,282,000 | 13,282,000 | 341,382,000 | 348,906,000 |  | 258,800,000 |  |  |  |  |
Interest Rate on LIBOR |  |  |  |  |  |  |  |  |  | LIBOR |  |  | LIBOR |  | LIBOR |  | LIBOR | LIBOR |  |  | LIBOR | LIBOR |  |  | EURIBOR | EURIBOR |  |  |  |  | The interest payments on the bonds are based on NIBOR plus a margin of 5.25%. | The interest payments on the bonds are based on NIBOR plus a margin of 5.25%. |
Aggregate annual long-term debt principal repayments, thereafter | 802,700,000 |  |  |  |  |  |  |  |  | 50,700,000 |  |  | 56,000,000 |  |  |  |  | 95,000,000 |  |  |  | 20,000,000 |  |  |  |  |  |  |  |  |  |  |
Marginal rate added to LIBOR for interest paid on first tranche under the loan facility |  |  |  | 0.30% | 2.75% |  |  |  |  | 2.75% |  |  | 0.68% |  |  |  | 0.30% | 0.63% |  |  | 30.00% | 70.00% |  |  |  |  |  |  | 0.60% | 2.25% | 5.25% | 5.25% |
Frequency of paying U.S. Dollar-denominated Term Loans |  |  |  |  |  |  |  |  |  | Quarterly payments |  | Quarterly payments | Quarterly payments |  |  |  | Quarterly payments |  |  |  | Semi-annual payments |  |  |  |  |  |  |  |  |  |  |  |
Partnership interest owned |  |  |  |  |  | 70.00% | 69.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Portion of U.S. Dollar-denominated Term Loans Outstanding bearing fixed rate |  |  |  |  |  |  |  |  |  |  |  |  | 153,700,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed interest rate on the portion of U.S. Dollar-denominated Term Loans and Demand Loans outstanding |  |  |  |  |  |  |  |  |  |  |  |  | 5.39% |  |  |  |  |  |  |  |  |  | 4.84% |  |  |  |  |  |  |  |  |  |
Portion of U.S. Dollar-denominated Term Loans Outstanding bearing LIBOR plus margin rate |  |  |  |  |  |  |  |  |  |  |  |  | 168,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bullet payment per vessel due (in years) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12 years and six months |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 700,000,000 | 700,000,000
Debt instrument, maturity date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | May 17, 2017 | May 17, 2017 |
Carrying amount of bonds |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 125,800,000 |  |
Fixed interest payment rate for currency swap |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6.88% | 6.88% |
Transfer of principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 125,000,000 | 700,000,000 |
Weighted-average interest rate for the Partnership's long-term debt outstanding | 2.29% | 2.29% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign exchange gain (loss) | (8,244,000) | 10,310,000 | 27,545,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (8,244,000) | 10,310,000 | 27,545,000 |  |  |  |  |  |
Aggregate annual long-term debt principal repayments, 2013 | 86,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate annual long-term debt principal repayments, 2014 | 88,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate annual long-term debt principal repayments, 2015 | 124,900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate annual long-term debt principal repayments, 2016 | 91,700,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate annual long-term debt principal repayments, 2017 | $ 219,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of minimum liquidity of partnership term loans to be held by Teekay Corporation | Greater of a minimum liquidity (cash and cash equivalents) of at least $50.0 million and 5.0% of Teekay Corporation's total consolidated debt which has recourse to Teekay Corporation. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of Teekay Corporation's consolidated debt to be maintained by Teekay Corporation as cash or cash equivalents | 5.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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