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Long-Term Debt - Additional Information - Revolvers (Detail) - Revolving Credit Facilities
shares in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2017
USD ($)
term_loan
vessel
shares
Dec. 31, 2016
Debt Instrument [Line Items]    
Number of credit facilities | term_loan 11  
Credit facility, maximum borrowing capacity $ 1,400,000,000  
Undrawn amount of revolving credit facility $ 300,000,000  
Reference rate on variable rate of the debt instrument LIBOR  
Available capacity reduced under revolving credit facility remainder of 2017 $ 308,400,000  
Available capacity reduced under revolving credit facility in 2018 675,500,000  
Available capacity reduced under revolving credit facility in 2019 43,000,000  
Available capacity reduced under revolving credit facility in 2020 0  
Available capacity reduced under revolving credit facility thereafter $ 365,000,000  
Number of vessels for collateral | vessel 64  
Secured debt    
Debt Instrument [Line Items]    
Credit facility, maximum borrowing capacity $ 200,000,000  
Minimum    
Debt Instrument [Line Items]    
Debt instrument spread on variable rate 0.45% 0.45%
Maximum    
Debt Instrument [Line Items]    
Debt instrument spread on variable rate 4.00% 4.00%
Class A common stock | Teekay Offshore | Securities Pledged as Collateral    
Debt Instrument [Line Items]    
Number of other securities collateralized by first-priority mortgages (in units) | shares 38.2  
Class A common stock | Teekay LNG | Securities Pledged as Collateral    
Debt Instrument [Line Items]    
Number of other securities collateralized by first-priority mortgages (in units) | shares 25.2  
Class A common stock | Teekay Tankers | Securities Pledged as Collateral    
Debt Instrument [Line Items]    
Number of other securities collateralized by first-priority mortgages (in units) | shares 16.8