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Goodwill and Intangible Assets - Carrying Amount of Goodwill for Company's Reportable Segment (Detail) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018
Goodwill [Line Items] |  |
Goodwill | $ 38,058 | $ 43,690
Goodwill, Period Increase (Decrease) | (5,632) |
Teekay LNG | Liquefied Gas Segment |  |
Goodwill [Line Items] |  |
Goodwill | 35,631 | 35,631
Teekay Tankers | Conventional Tanker Segment |  |
Goodwill [Line Items] |  |
Goodwill | 2,427 | $ 8,059
Goodwill, Period Increase (Decrease) | $ (5,632) |

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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- Definition Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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