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Total Capital and Net Income Per Unit - Issuances of Common Units (Detail) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2015 | Jul. 31, 2014 | Oct. 31, 2013 | Jul. 31, 2013 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Capital Unit [Line Items] |  |  |  |  |  |  |
Net proceeds from equity offerings |  |  |  |  | $ 35,374 | $ 182,139 | $ 190,520
Continuous Offering Program 2014 [Member] |  |  |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |  |  |
Units Issued, Sold in public and continuing offering program | 160,000 |  |  |  |  |  |
Net proceeds from equity offerings | $ 6,800 |  |  |  |  |  |
Funding of LNG Carrier Newbuilding [Member] | July 2013 Offering [Member] |  |  |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |  |  |
Units Issued, Private placement |  |  |  | 931,098 |  |  |
Gross Proceeds, Private placement |  |  |  | $ 40,816 |  |  |
Net proceeds from equity offerings |  |  |  | $ 40,776 |  |  |
Offering Price |  |  |  | $ 42.96 |  |  |
Teekay Corporation's Ownership After the Offering |  |  |  | 36.92% |  |  |
Prepayment of Revolving Credit Facilities, Funding of LNG Carrier Acquisition and for General Partnership Purposes [Member] | October 2013 Offering [Member] |  |  |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |  |  |
Units Issued, Sold in public and continuing offering program |  |  | 3,450,000 |  |  |  |
Gross Proceeds, Sold in public and continuing offering program |  |  | $ 150,040 |  |  |  |
Net proceeds from equity offerings |  |  | $ 144,818 |  |  |  |
Offering Price |  |  | $ 42.62 |  |  |  |
Teekay Corporation's Ownership After the Offering |  |  | 35.30% |  |  |  |
Prepayment of Revolving Credit Facilities, Funding of the Yamal Lng Project and Portion of the MEGI Newbuildings [Member] | July 2014 Offering [Member] |  |  |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |  |  |
Units Issued, Sold in public and continuing offering program |  | 3,090,000 |  |  |  |  |
Gross Proceeds, Sold in public and continuing offering program |  | $ 140,784 |  |  |  |  |
Net proceeds from equity offerings |  | $ 140,484 |  |  |  |  |
Offering Price |  | $ 44.65 |  |  |  |  |
Teekay Corporation's Ownership After the Offering |  | 33.96% |  |  |  |  |
General Partnership Purposes Including Funding Newbuilding Installments [Member] | Continuous Offering Program 2014 [Member] |  |  |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |  |  |
Units Issued, Sold in public and continuing offering program |  |  |  |  |  | 1,050,463 |
Gross Proceeds, Sold in public and continuing offering program |  |  |  |  |  | $ 42,556 |
Net proceeds from equity offerings |  |  |  |  |  | $ 41,655 |
General Partnership Purposes Including Funding Newbuilding Installments [Member] | Continuous Offering Program 2015 [Member] |  |  |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |  |  |
Units Issued, Sold in public and continuing offering program |  |  |  |  | 1,173,428 |  |
Gross Proceeds, Sold in public and continuing offering program |  |  |  |  | $ 36,274 |  |
Net proceeds from equity offerings |  |  |  |  | $ 35,374 |  |
General Partnership Purposes [Member] | Continuous Offering Program 2013 [Member] |  |  |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |  |  |
Units Issued, Sold in public and continuing offering program |  |  |  |  |  |  | 124,071
Gross Proceeds, Sold in public and continuing offering program |  |  |  |  |  |  | $ 5,383
Net proceeds from equity offerings |  |  |  |  |  |  | $ 4,926

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