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Commitments and Contingencies - Additional Information - Purchase Obligations (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Vessel
Teekay Tankers [Member] | Aframax tankers [Member]  
Long-term Purchase Commitment [Line Items]  
Aggregate purchase price $ 37.0us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted
/ dei_LegalEntityAxis
= tk_TeekayTankersMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= tk_AframaxTankerMember
Escrow fund 3.7us-gaap_EscrowDeposit
/ dei_LegalEntityAxis
= tk_TeekayTankersMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= tk_AframaxTankerMember
Teekay Tankers [Member] | Modern LR2 Vessels [Member]  
Long-term Purchase Commitment [Line Items]  
Number of vessels 4tk_NumberOfVessels
/ dei_LegalEntityAxis
= tk_TeekayTankersMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= tk_LrTwoTankersMember
Aggregate purchase price 193.3us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted
/ dei_LegalEntityAxis
= tk_TeekayTankersMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= tk_LrTwoTankersMember
Long Distance Towing And Offshore Installation [Member] | Teekay Offshore [Member]  
Long-term Purchase Commitment [Line Items]  
Number of vessels 6tk_NumberOfVessels
/ dei_LegalEntityAxis
= tk_TeekayOffshoreMember
/ us-gaap_MajorPropertyClassAxis
= tk_LongDistanceTowingAndOffshoreInstallationMember
Aggregate purchase price $ 220.0us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted
/ dei_LegalEntityAxis
= tk_TeekayOffshoreMember
/ us-gaap_MajorPropertyClassAxis
= tk_LongDistanceTowingAndOffshoreInstallationMember
Long Distance Towing And Offshore Installation [Member] | Teekay Offshore [Member] | Delivery In the first and early second quarter of 2015 [Member]  
Long-term Purchase Commitment [Line Items]  
Number of vessels 4tk_NumberOfVessels
/ dei_LegalEntityAxis
= tk_TeekayOffshoreMember
/ us-gaap_MajorPropertyClassAxis
= tk_LongDistanceTowingAndOffshoreInstallationMember
/ us-gaap_RangeAxis
= tk_DeliveryInTheFirstAndEarlySecondQuarterTwoThousandFifteenMember
Long Distance Towing And Offshore Installation [Member] | Teekay Offshore [Member] | Delivery in rest of Second Quarter of 2015 [Member]  
Long-term Purchase Commitment [Line Items]  
Number of vessels 2tk_NumberOfVessels
/ dei_LegalEntityAxis
= tk_TeekayOffshoreMember
/ us-gaap_MajorPropertyClassAxis
= tk_LongDistanceTowingAndOffshoreInstallationMember
/ us-gaap_RangeAxis
= tk_DeliveryInSecondQuarterOfTwoThousandFifteenMember