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Amount of gain (loss) from the difference between the sale price or salvage price and the book value of an asset that was sold or retired, and gain (loss) from the write down of assets from their carrying value to fair value.

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The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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Commitments and Contingencies - Additional Information - Legal Proceedings and Claims - Cancellation of two UMS newbuilding contracts (Details)	1 Months Ended		3 Months Ended		12 Months Ended
	Sep. 30, 2016 USD ($) hull	Aug. 31, 2014 MaintenanceAndSafety	Jun. 30, 2016 USD ($)	Nov. 30, 2013 vessel	Dec. 31, 2016 USD ($)	Aug. 11, 2014
Loss Contingencies [Line Items]
Number of vessels \| vessel				5
Logitel Offshore Holdings [Member]
Loss Contingencies [Line Items]
Estimated claim	$ 2,800,000
Teekay Offshore [Member]
Loss Contingencies [Line Items]
Loss contingency accrual					$ 61,900,000
Teekay Offshore [Member] \| Logitel Offshore Holdings [Member]
Loss Contingencies [Line Items]
Percentage of ownership acquired		100.00%				100.00%
Number of units for maintenance and safety \| MaintenanceAndSafety		3
Units for Maintenance and Safety [Member] \| Teekay Offshore [Member]
Loss Contingencies [Line Items]
Write down on sale of vessels			$ 43,700,000
Reversal of contingent liabilities			14,500,000
Stavanger Spirit [Member] \| Teekay Offshore [Member]
Loss Contingencies [Line Items]
Potential damage, maximum			170,000,000
Nantong Spirit [Member] \| Teekay Offshore [Member]
Loss Contingencies [Line Items]
Potential damage, maximum			40,000,000
Potential damage, minimum			$ 10,000,000
Sevan Marine ASA [Member] \| Teekay Offshore [Member] \| Logitel Offshore Holdings [Member]
Loss Contingencies [Line Items]
Number of hulls \| hull	2
Debt instrument, principal amount	$ 60,000,000
Estimated claim	50,000,000				$ 10,000,000
CeFront Technology AS [Member] \| Teekay Offshore [Member] \| Logitel Offshore Holdings [Member]
Loss Contingencies [Line Items]
Portion not accrued	3,600,000
Vendor Credit Loan [Member] \| Sevan Marine ASA [Member] \| Teekay Offshore [Member] \| Logitel Offshore Holdings [Member]
Loss Contingencies [Line Items]
Debt instrument, principal amount	41,000,000
Cash Loan [Member] \| Sevan Marine ASA [Member] \| Teekay Offshore [Member] \| Logitel Offshore Holdings [Member]
Loss Contingencies [Line Items]
Debt instrument, principal amount	19,000,000
Nantong Spirit [Member] \| CeFront Technology AS [Member] \| Teekay Offshore [Member] \| Logitel Offshore Holdings [Member]
Loss Contingencies [Line Items]
Estimated claim	20,200,000
Arendal Spirit Ums [Member] \| CeFront Technology AS [Member] \| Teekay Offshore [Member] \| Logitel Offshore Holdings [Member]
Loss Contingencies [Line Items]
Estimated claim	$ 3,300,000