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Investments - Tanker Investments Ltd - Additional Information (Detail) | 12 Months Ended |  |  |  | 0 Months Ended | 1 Months Ended | 12 Months Ended |  | 1 Months Ended |  | 1 Months Ended |  |
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Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Dec. 31, 2014 Tanker Investments Limited [Member] Vessel | Oct. 31, 2014 Tanker Investments Limited [Member] | Jan. 31, 2014 Tanker Investments Limited [Member] Series A- One Preferred Stock [Member] | Jan. 31, 2014 Tanker Investments Limited [Member] Series A- Two Preferred Stock [Member] | Dec. 31, 2014 Tanker Investments Limited [Member] 2009 - built Suezmax tankers [Member] Vessel | Dec. 31, 2014 Tanker Investments Limited [Member] 2010 - built Suezmax tankers [Member] Vessel | Jan. 23, 2014 Teekay Tankers [Member] Tanker Investments Limited [Member] USD ($) | Oct. 31, 2014 Teekay Tankers [Member] Tanker Investments Limited [Member] | Jan. 31, 2014 Teekay Tankers [Member] Tanker Investments Limited [Member] USD ($) | Dec. 31, 2014 Teekay Tankers [Member] Tanker Investments Limited [Member] USD ($) | Mar. 31, 2014 Teekay Tankers [Member] Tanker Investments Limited [Member] | Oct. 31, 2014 Teekay Tankers [Member] Tanker Investments Limited [Member] Common Stock [Member] USD ($) | Jan. 31, 2014 Teekay Tankers [Member] Tanker Investments Limited [Member] Common Stock [Member] | Oct. 31, 2014 Teekay Tankers [Member] Tanker Investments Limited [Member] Common Stock [Member] NOK | Oct. 31, 2014 Teekay Tankers [Member] Tanker Investments Limited [Member] Common Stock [Member] Maximum [Member] USD ($) | Oct. 31, 2014 Teekay Tankers [Member] Tanker Investments Limited [Member] Common Stock [Member] Share Repurchase Program October Two Thousand And Fourteen [Member] NOK | Jan. 31, 2014 Teekay Tankers [Member] Tanker Investments Limited [Member] Warrant [Member] Maximum [Member] | Jan. 31, 2014 Teekay Tankers [Member] Tanker Investments Limited [Member] Warrant [Member] Derivatives not designated as a cash flow hedge [Member] USD ($) | Dec. 31, 2014 Teekay Tankers [Member] Tanker Investments Limited [Member] 2010 - built VLCC [Member] Vessel | Dec. 31, 2014 Teekay Tankers [Member] Tanker Investments Limited [Member] 2009 - built Suezmax tankers [Member] Vessel | Dec. 31, 2014 Teekay Tankers [Member] Tanker Investments Limited [Member] 2009, 2010 and 2011-built Aframax tankers [Member] Vessel | Dec. 31, 2014 Teekay Tankers [Member] Tanker Investments Limited [Member] 2012-built coated Aframax [Member] Vessel | Dec. 31, 2014 Teekay Tankers [Member] Tanker Investments Limited [Member] VLCC [Member] Other Vessels [Member] USD ($)
Net Investment Income [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase of common stock |  |  |  |  |  |  |  |  |  |  | 5,000,000tk_EquityMethodInvestmentNumberOfSharesPurchased / dei_LegalEntityAxis = tk_TeekayTankersMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember |  |  | 900,000tk_EquityMethodInvestmentNumberOfSharesPurchased / dei_LegalEntityAxis = tk_TeekayTankersMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 5,000,000tk_EquityMethodInvestmentNumberOfSharesPurchased / dei_LegalEntityAxis = tk_TeekayTankersMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |  |  |  |  |  |  |
Percentage of combined ownership interest | 16.05%us-gaap_EquityMethodInvestmentOwnershipPercentage |  | 16.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember | 8.94%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember |  |  |  |  |  |  | 20.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = tk_TeekayTankersMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember |  | 13.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = tk_TeekayTankersMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |
Issuance of equity private placement |  |  |  |  |  |  |  |  | $ 250,000,000us-gaap_ProceedsFromIssuanceOfPrivatePlacement / dei_LegalEntityAxis = tk_TeekayTankersMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment |  |  |  |  |  |  |  |  |  |  | 50,000,000us-gaap_EquityMethodInvestmentAggregateCost / dei_LegalEntityAxis = tk_TeekayTankersMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares available through exercise of stock purchase warrant |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,500,000tk_NumberOfSharesAvailableThroughExerciseOfStockPurchaseWarrants / dei_LegalEntityAxis = tk_TeekayTankersMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember |  |  |  |  |  |
Derivatives not designated as a cash flow hedge | 14,415,000us-gaap_DerivativeInstrumentsAndHedgesNoncurrent | 69,797,000us-gaap_DerivativeInstrumentsAndHedgesNoncurrent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,800,000us-gaap_DerivativeInstrumentsAndHedgesNoncurrent / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember / dei_LegalEntityAxis = tk_TeekayTankersMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember |  |  |  |  |
Preferred Stock, Share | 0us-gaap_PreferredStockSharesIssued | 0us-gaap_PreferredStockSharesIssued |  |  | 1us-gaap_PreferredStockSharesIssued / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember / us-gaap_StatementClassOfStockAxis = tk_SeriesAOnePreferredStockMember | 1us-gaap_PreferredStockSharesIssued / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember / us-gaap_StatementClassOfStockAxis = tk_SeriesATwoPreferredStockMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, voting rights |  |  | elect one board member |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain from sale of investment |  |  |  |  |  |  |  |  |  |  |  | 4,100,000us-gaap_GainOnSaleOfInvestments / dei_LegalEntityAxis = tk_TeekayTankersMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest |  |  |  |  |  |  |  |  |  | 2.43%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired / dei_LegalEntityAxis = tk_TeekayTankersMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares acquired, price per share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 69us-gaap_BusinessAcquisitionSharePrice / dei_LegalEntityAxis = tk_TeekayTankersMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |  |  |  |  |  |
Aggregate price of common stock |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,100,000us-gaap_PaymentsToAcquireEquityMethodInvestments / dei_LegalEntityAxis = tk_TeekayTankersMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |  |  |  |  |  |  |  |
Shares held in investment owned |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,400,000us-gaap_InvestmentOwnedBalanceShares / dei_LegalEntityAxis = tk_TeekayTankersMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |  |  |  |  |  |
Combined interest of shares held in investment owned | 16.05%us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions |  |  |  |  |  |  |  |  | 15.43%us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions / dei_LegalEntityAxis = tk_TeekayTankersMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock repurchase, amount authorized |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30,000,000us-gaap_StockRepurchaseProgramAuthorizedAmount1 / dei_LegalEntityAxis = tk_TeekayTankersMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |  |  |  |  |
Common stock repurchase, amount authorized |  | 12,000,000us-gaap_StockRepurchasedDuringPeriodValue |  |  |  |  |  |  |  |  |  |  |  | 15,100,000us-gaap_StockRepurchasedDuringPeriodValue / dei_LegalEntityAxis = tk_TeekayTankersMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |  |  |  |  |  |  |  |
Average price per share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 68.49us-gaap_SharePrice / dei_LegalEntityAxis = tk_TeekayTankersMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember / us-gaap_ShareRepurchaseProgramAxis = tk_ShareRepurchaseProgramOctoberTwoThousandAndFourteenMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |  |  |  |
Number of vessels |  |  | 20tk_NumberOfVesselsInPartnership / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember |  |  |  | 4tk_NumberOfVesselsInPartnership / us-gaap_MajorPropertyClassAxis = tk_TwoThousandNineBuiltSuezmaxTankersMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember | 2tk_NumberOfVesselsInPartnership / us-gaap_MajorPropertyClassAxis = tk_TwoThousandTenBuiltSuezmaxTankersMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  | 2tk_NumberOfVesselsInPartnership / dei_LegalEntityAxis = tk_TeekayTankersMember / us-gaap_MajorPropertyClassAxis = tk_TwoThousandTenBuiltVlccMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember | 4tk_NumberOfVesselsInPartnership / dei_LegalEntityAxis = tk_TeekayTankersMember / us-gaap_MajorPropertyClassAxis = tk_TwoThousandNineBuiltSuezmaxTankersMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember | 6tk_NumberOfVesselsInPartnership / dei_LegalEntityAxis = tk_TeekayTankersMember / us-gaap_MajorPropertyClassAxis = tk_TwoThousandNineTenAndElevenBuiltAframaxTankerMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember | 2tk_NumberOfVesselsInPartnership / dei_LegalEntityAxis = tk_TeekayTankersMember / us-gaap_MajorPropertyClassAxis = tk_TwoThousandTwelveBuiltCoatedAframaxMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember |
Aggregate purchase price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 317,200,000us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment / dei_LegalEntityAxis = tk_TeekayTankersMember / us-gaap_MajorPropertyClassAxis = tk_VlccMember / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_OtherTransportationEquipmentMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember
Annual guarantee fee |  |  | 0.25%tk_GuaranteeFeePercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = tk_TankerInvestmentsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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- Definition Carrying amount as of the balance sheet date of the assets arising from derivative contracts and hedging activities, which are expected to be converted into cash or otherwise disposed of after a year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
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- Definition The difference between the carrying value and the sale price of an investment. A gain would be recognized when the sale price of the investment is greater than the carrying value of the investment. This element refers to the Gain included in earnings and not to the cash proceeds of the sale. + References No definition available. + Details
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- Definition The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29 -Article 5 + Details
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- Definition Description of voting rights of nonredeemable preferred stock. Includes eligibility to vote and votes per share owned. Include also, if any, unusual voting rights. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29 -Article 5 + Details
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- Definition The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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- Definition Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 + Details
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- Definition Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions. + References No definition available. + Details
Name: | us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration