Accrued Liabilities and Other and Other Long-Term Liabilities - In-Process Revenue Contracts (Details) $ in Millions	12 Months Ended
Dec. 31, 2018 USD ($) vessel	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Payables and Accruals [Line Items]
Amortization of in-process revenue	$ 14.5	$ 27.2	$ 28.1
Amortization of in-process revenue contracts, 2019	5.9
Amortization of in-process revenue contracts, 2020	5.9
Amortization of in-process revenue contracts, 2021	5.9
Amortization of in-process revenue contracts, 2022	$ 5.9
Newbuildings \| Shipbuilding supervision and crew training services \| Pan Union Joint Venture \| Teekay LNG
Payables and Accruals [Line Items]
Number of vessels \| vessel	4

Number Of Vessels

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[Line Items] for Payables and Accruals [Table]

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Amount of non-cash amortization of intangible asset (liability) for above and below market leases.

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Amount of amortization income for leases with a finite life acquired as part of a real property acquisition at below market lease rate expected to be recognized during 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 amortization income for leases with a finite life acquired as part of a real property acquisition at below market lease rate expected to be recognized during 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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Amount of amortization income for leases with a finite life acquired as part of a real property acquisition at below market lease rate expected to be recognized during the third 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 amortization income for leases with a finite life acquired as part of a real property acquisition at below market lease rate expected to be recognized during the second 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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