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Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.

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Number of shares of equity interests issued or issuable to acquire entity.

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Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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Amount of assets acquired at the acquisition date.

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Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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Number of common units of ownership outstanding of a limited liability company (LLC).

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Represents a sale (new stock issuance) by a subsidiary to noncontrolling interests (third parties, parties directly or indirectly unrelated to parent) during the period. The capital transaction by subsidiary does not result in a loss of control by the parent, but does effect a change in total (consolidated) equity attributable to the parent.

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Fair value of equity issued in a business combination.

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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.

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Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Financing Transactions - Additional Information (Detail) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	12 Months Ended			0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Aug. 01, 2014 Pools	May 02, 2013
Subsidiary or Equity Method Investee [Line Items]
Equity method investment, ownership interest	16.05%
Amount increases to retained earnings	$ 68,428,000	$ 36,703,000	$ 88,727,000
Voyageur Spirit [Member]
Subsidiary or Equity Method Investee [Line Items]
Business acquisition, purchase price		503,100,000
Conventional Tanker Commercial Operations and Technical Management Operations [Member]
Subsidiary or Equity Method Investee [Line Items]
Business acquisition, purchase price				23,500,000
Common units outstanding	87.8
Equity method investment, ownership interest				50.00%
Commercially managed tanker pools				3
Value of the assets acquired, including working capital	16,900,000
Conventional Tanker Commercial Operations and Technical Management Operations [Member] \| Reimbursed working capital [Member]
Subsidiary or Equity Method Investee [Line Items]
Business acquisition, purchase price	6,500,000
Common Class B [Member] \| Conventional Tanker Commercial Operations and Technical Management Operations [Member]
Subsidiary or Equity Method Investee [Line Items]
Number of common shares issued for acquisition	4.2
Value of common shares issued for acquisition	17,000,000
Common share price per share, acquisition closing date	$ 4.03
Initial [Member] \| Common Class B [Member] \| Conventional Tanker Commercial Operations and Technical Management Operations [Member]
Subsidiary or Equity Method Investee [Line Items]
Value of common shares issued for acquisition	15,600,000
Common share price per share, acquisition closing date	$ 3.70
Teekay Offshore [Member]
Subsidiary or Equity Method Investee [Line Items]
Business acquisition, debt assumed					230,000,000
Business acquisition, cash paid					253,000,000
Interest of Company's general partner					2.00%
Business acquisition, value of common units					44,300,000
Business acquisition, fair value of common units					40,000,000
Common units outstanding					83.6
Teekay Offshore [Member] \| Initial [Member] \| Voyageur Spirit [Member]
Subsidiary or Equity Method Investee [Line Items]
Business acquisition, purchase price					$ 540,000,000