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Segment Reporting - Capital Expenditures by Segment (Detail) - Operating Segments - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Costs incurred for dry dockings	$ 26,507	$ 109,523
Teekay LNG | Liquefied Gas Carriers
Segment Reporting Information [Line Items]
Costs incurred for dry dockings	10,482	96,357
Teekay LNG | Conventional Tankers
Segment Reporting Information [Line Items]
Costs incurred for dry dockings	0	1,538
Teekay Tankers | Conventional Tankers
Segment Reporting Information [Line Items]
Costs incurred for dry dockings	$ 16,025	$ 11,628

X

- Definition

Amount of acquisition of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Details

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