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Commitments and Contingencies - Additional Information - Redeemable Non-Controlling Interest (Detail)
$ / shares in Units, $ in Millions
1 Months Ended 12 Months Ended
Jul. 31, 2015
$ / shares
shares
Jun. 30, 2016
USD ($)
quarter
$ / shares
shares
Jul. 31, 2015
USD ($)
shares
Dec. 31, 2016
USD ($)
Dec. 31, 2010
USD ($)
Dec. 31, 2015
Series C Preferred Stock [Member]            
Redeemable Noncontrolling Interest [Line Items]            
Period for optional conversion to common units     3 years      
Teekay Offshore [Member]            
Redeemable Noncontrolling Interest [Line Items]            
Ownership percentage       29.00%   37.00%
Incentive distribution | $       $ 20.6    
Teekay Offshore [Member] | Series C Preferred Stock [Member]            
Redeemable Noncontrolling Interest [Line Items]            
Public offering made by Partnership (in shares)     10,400,000      
Preferred units dividend rate     8.60%      
Net proceeds from public offering | $     $ 249.8      
Conversion period   18 months 18 months      
Shares issued upon conversion 1   1      
Weighted average price of common units (dollars per share) | $ / shares $ 35.925          
Teekay Offshore [Member] | Series C-1 Preferred Units [Member]            
Redeemable Noncontrolling Interest [Line Items]            
Shares issued upon conversion   1.474        
Period for optional conversion to common units   3 years        
Conversion of convertible securities (in shares)   8,500,000        
Percent of issuance price   150.00%        
Issuance price (in dollars per share) | $ / shares   $ 16.25        
Number of quarters | quarter   8        
Percent discount on 10 days   2.00%        
Consecutive trading days   10 days        
Teekay Offshore [Member] | Series D Preferred Stock [Member]            
Redeemable Noncontrolling Interest [Line Items]            
Joint venture ownership percentage       74.00%    
Ownership percentage       26.00%    
Preferred units dividend rate   10.50%   10.50%    
Number of quarters | quarter   8        
Percent discount on 10 days   4.00%        
Consecutive trading days   10 days        
Units issued   4,000,000        
Premium to liquidation value in redemption after June 29, 2021   10.00%        
Premium to liquidation value in redemption after June 29, 2022   5.00%        
Redemption price per share (in dollars per share) | $ / shares   $ 4.00        
Percent of common units purchased   90.00%        
Common Stock [Member] | Teekay Offshore [Member]            
Redeemable Noncontrolling Interest [Line Items]            
Conversion of convertible securities (in shares)   1,900,000        
Non-controlling Interests [Member] | Teekay Offshore [Member]            
Redeemable Noncontrolling Interest [Line Items]            
Value of shuttle tanker contributed by unrelated party in exchange of equity interest in subsidiary | $         $ 35.0  
Joint venture ownership percentage         33.00%  
Ownership percentage         67.00%  
Affiliated Entity [Member] | Teekay Offshore [Member] | Series D Preferred Stock [Member]            
Redeemable Noncontrolling Interest [Line Items]            
Units issued   1,040,000        
Induced Exchange of Series C Preferred Units [Member] | Teekay Offshore [Member] | Series C Preferred Stock [Member]            
Redeemable Noncontrolling Interest [Line Items]            
Shares converted   1,900,000        
Inducement Premium on Series C Preferred Units Conversion [Member] | Teekay Offshore [Member]            
Redeemable Noncontrolling Interest [Line Items]            
Conversion of convertible securities (in shares)   6,400,000        
Conversion of units | $   $ 37.7        
Extinguishment of Series C Preferred Units [Member] | Teekay Offshore [Member] | Series C Preferred Stock [Member]            
Redeemable Noncontrolling Interest [Line Items]            
Shares converted   8,500,000        
Non-controlling Interests [Member] | Teekay Offshore [Member]            
Redeemable Noncontrolling Interest [Line Items]            
Incentive distribution | $       $ 14.6    
Non-controlling Interests [Member] | Inducement Premium on Series C Preferred Units Conversion [Member] | Teekay Offshore [Member]            
Redeemable Noncontrolling Interest [Line Items]            
Conversion of units | $   $ 26.7        
Retained Earnings [Member] | Teekay Offshore [Member]            
Redeemable Noncontrolling Interest [Line Items]            
Incentive distribution | $       6.0    
Retained Earnings [Member] | Inducement Premium on Series C Preferred Units Conversion [Member] | Teekay Offshore [Member]            
Redeemable Noncontrolling Interest [Line Items]            
Conversion of units | $       $ 11.0    
Limited Partner [Member] | Common Stock [Member] | Teekay Offshore [Member]            
Redeemable Noncontrolling Interest [Line Items]            
Conversion of convertible securities (in shares)   8,300,000