Long-Term Debt - Additional Information - Revolvers (Detail) (USD $) Share data in Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Amount reduced under revolving credit facility in 2015	654,100,000
Amount reduced under revolving credit facility in 2016	797,100,000
Amount reduced under revolving credit facility in 2017	1,100,000,000
Amount reduced under revolving credit facility in 2018	1,600,000,000
Amount reduced under revolving credit facility in 2019	744,600,000
Minimum [Member]
Debt Instrument [Line Items]
Debt instrument interest	0.00%	0.00%
Maximum [Member]
Debt Instrument [Line Items]
Debt instrument interest	8.00%	8.00%
Teekay Offshore [Member] \| Securities Pledged as Collateral [Member]
Debt Instrument [Line Items]
Number of other securities collateralized by first-priority mortgages	23.8
Teekay LNG [Member] \| Securities Pledged as Collateral [Member]
Debt Instrument [Line Items]
Number of other securities collateralized by first-priority mortgages	25.2
Revolving Credit Facilities [Member]
Debt Instrument [Line Items]
Number of credit facilities	13
Aggregate borrowings	2,400,000,000
Undrawn amount of revolving credit facility	600,000,000
Reference rate on variable rate of the debt instrument	LIBOR
Debt instrument interest	0.26%	0.25%
Amount reduced under revolving credit facility in 2015	382,200,000
Amount reduced under revolving credit facility in 2016	506,200,000
Amount reduced under revolving credit facility in 2017	529,700,000
Amount reduced under revolving credit facility in 2018	895,200,000
Amount reduced under revolving credit facility in 2019	49,500,000
Debt instrument collateral, description	The Revolvers are collateralized by first-priority mortgages granted on 51 of the Company’s vessels, together with other related security, and include a guarantee from Teekay or its subsidiaries for all outstanding amounts.
Secured revolving credit facility	500,000,000
Revolving Credit Facilities [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Percentage of margin	0.45%	0.45%
Revolving Credit Facilities [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Percentage of margin	3.95%	4.50%
Revolving Credit Facilities [Member] \| Teekay Offshore and Teekay LNG [Member]
Debt Instrument [Line Items]
Aggregate borrowings	473,500,000

Number Of Credit Facilities

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Number of common units issued of limited liability company (LLC).

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Discussion of whether the debt instrument is secured or unsecured, and, if secured, a description of the collateral and guarantees required or provided.

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The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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