Investments - Additional Information - Teekay LNG - BG International Limited Joint Venture (Detail) (USD $) In Millions, unless otherwise specified	1 Months Ended	6 Months Ended
Jun. 30, 2014 Vessel	Jun. 30, 2014
Net Investment Income [Line Items]
Expected cost of project		$ 1,500
BG International Limited [Member] \| Newbuildings [Member] \| Shipbuilding supervision and crew training services [Member]
Net Investment Income [Line Items]
Volume of vessels	174,000
Expected cost of project	1,000
Teekay LNG [Member] \| BG International Limited [Member] \| Newbuildings [Member]
Net Investment Income [Line Items]
Number of vessels	2
Teekay LNG [Member] \| BG International Limited [Member] \| Newbuildings [Member] \| Shipbuilding supervision and crew training services [Member]
Net Investment Income [Line Items]
Number of vessels	4
Operating lease arrangement period, lessor		20 years
Investments in joint venture	20.3	20.3
Fair value of service obligation	30.2	30.2
Fair value of amount due	16.5	16.5
Ownership Percentage	30.00%	30.00%
Teekay LNG [Member] \| BG International Limited [Member] \| Newbuildings [Member] \| Shipbuilding supervision and crew training services [Member] \| Scenario, Forecast [Member]
Net Investment Income [Line Items]
Ship construction support	36.7
Teekay LNG [Member] \| BG Joint Venture [Member] \| Newbuildings [Member]
Net Investment Income [Line Items]
Number of vessels	2
Teekay LNG [Member] \| BG Joint Venture [Member] \| Newbuildings [Member] \| Shipbuilding supervision and crew training services [Member]
Net Investment Income [Line Items]
Number of vessels	4
Expected cost of project	1,000
Ownership Percentage	20.00%	20.00%
Excess of book value over the investment	$ 13.7	$ 13.7

Carriers Volume

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Number Of Vessels

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- Definition

Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

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- Definition

Difference between amount at which an investment accounted for under the equity method of accounting is carried (reported) on the balance sheet and amount of underlying equity in net assets the reporting Entity has in the investee.

+ 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)(3)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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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

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Term of the lessor's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle) and amount due to the Entity from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such investments and receivables to an amount that approximates their net realizable value.

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The minimum amount the entity agreed to spend under the long-term purchase commitment.

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An amount representing an agreement for an unconditional promise by the maker to pay the Entity (holder) a definite sum of money at a future date(s) more than one year from the balance sheet date. Such amount may include accrued interest receivable in accordance with the terms of the debt. The debt also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. This amount does not include amounts related to receivables held-for-sale.

+ 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

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 17

-Article 5

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Professional and contract service expense includes cost reimbursements for support services related to contracted projects, outsourced management, technical and staff support.

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