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Derivative Instruments and Hedging Activities - Additional Information (Detail)
1 Months Ended 6 Months Ended
Jan. 23, 2014
USD ($)
Jan. 31, 2014
USD ($)
NOK / Derivative
shares
Jun. 30, 2015
USD ($)
$ / shares
Dec. 31, 2014
USD ($)
Jan. 31, 2014
NOK / shares
Derivative [Line Items]          
Interest rate swaps, Description of Objective     The Company enters into interest rate swap agreements, which exchange a receipt of floating interest for a payment of fixed interest, to reduce the Company's exposure to interest rate variability on its outstanding floating-rate debt.    
Equity method investment, ownership interest     16.04%    
Derivatives not designated as a cash flow hedge     $ 18,376,000 $ 14,415,000  
Interest Rate Swaps, Cross Currency Swaps Agreement and Foreign Currency Forward Contracts [Member]          
Derivative [Line Items]          
Fair value asset of interest rate swaps, cross currency swaps and foreign currency forward contracts having master agreements providing for net settlement     0    
Fair value liability of interest rate swaps, cross currency swaps and foreign currency forward contracts having master agreements providing for net settlement     496,500,000    
Restricted cash     $ 77,800,000    
Teekay Tankers [Member] | Tanker Investments Limited [Member]          
Derivative [Line Items]          
Purchase of common stock | shares   5,000,000      
Equity method investment, ownership interest   20.00%      
Issuance of equity private placement $ 250,000,000        
Equity method investment   $ 50,000,000      
Teekay Tankers [Member] | Tanker Investments Limited [Member] | Warrant [Member]          
Derivative [Line Items]          
Fixed price of stock purchase warrants, per share | (per share)     $ 10.00   NOK 61.67
Consecutive trading days   10 days      
Teekay Tankers [Member] | Tanker Investments Limited [Member] | Warrant [Member] | Derivatives not designated as a cash flow hedge [Member]          
Derivative [Line Items]          
Derivatives not designated as a cash flow hedge   $ 6,800,000 $ 11,100,000    
Teekay Tankers [Member] | Tanker Investments Limited [Member] | Maximum [Member] | Warrant [Member]          
Derivative [Line Items]          
Number of shares available through exercise of stock purchase warrant | shares   1,500,000      
Teekay Tankers [Member] | Tanker Investments Limited [Member] | Minimum [Member] | Warrant [Member] | Tranche One [Member]          
Derivative [Line Items]          
Fair market value of the shares | NOK / Derivative   77.08      
Teekay Tankers [Member] | Tanker Investments Limited [Member] | Minimum [Member] | Warrant [Member] | Tranche Two [Member]          
Derivative [Line Items]          
Fair market value of the shares | NOK / Derivative   92.50      
Teekay Tankers [Member] | Tanker Investments Limited [Member] | Minimum [Member] | Warrant [Member] | Tranche Three [Member]          
Derivative [Line Items]          
Fair market value of the shares | NOK / Derivative   107.91      
Teekay Tankers [Member] | Tanker Investments Limited [Member] | Minimum [Member] | Warrant [Member] | Tranche Four [Member]          
Derivative [Line Items]          
Fair market value of the shares | NOK / Derivative   123.33