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Related Party Transactions - Additional Information (Details)
1 Months Ended 12 Months Ended
Dec. 31, 2019
vessel
Dec. 31, 2019
USD ($)
vessel
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2015
Related Party Transaction [Line Items]          
Time-charter hire expense (notes 5b and 12a)   $ (19,994,000) $ (7,670,000) $ 0  
Operating Costs and Expenses   $ 111,585,000 117,658,000 101,539,000  
Term of charter contract (in years) 20 years 20 years      
Restructuring charges   $ 3,315,000 1,845,000 0  
Decrease from purchase of interests   2,681,000      
Advances to affiliates          
Related Party Transaction [Line Items]          
Time-charter hire expense (notes 5b and 12a)   (19,994,000) (7,670,000) 0  
Operating Costs and Expenses   6,629,000 $ 17,852,000 23,564,000  
Advances to affiliates | Teekay Corporation          
Related Party Transaction [Line Items]          
Operating lease arrangement period, lessor (in years)     10 years    
Teekay Marine Solutions (Bermuda) Ltd. | Advances to affiliates          
Related Party Transaction [Line Items]          
Operating Costs and Expenses   2,000,000.0 $ 1,600,000 0  
Bahrain LNG Joint Venture | Advances to affiliates          
Related Party Transaction [Line Items]          
Recovery of direct costs   $ 6,500,000 $ 1,600,000 $ 0  
Newbuildings | Advances to affiliates | Pan Union Joint Venture          
Related Party Transaction [Line Items]          
Number of vessels | vessel 4 4      
Modified Vessel | Daewoo Shipbuilding & Marine Engineering Co. Ltd. | Bahrain LNG Joint Venture          
Related Party Transaction [Line Items]          
Term of charter contract (in years)         21 years
Teekay corporation          
Related Party Transaction [Line Items]          
Partnership interest owned (in percentage) 1.00%