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Segment Reporting - Revenues (Detail) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Segment Reporting Information [Line Items] |  |  |  |
Revenues | $ 396,517,000 | $ 425,836,000 | $ 1,453,376,000 | $ 1,375,106,000
Intersegment Eliminations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 0 | (7,096,000) | 0 | (11,712,000)
Teekay LNG | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 148,935,000 | 149,655,000 | 437,027,000 | 452,459,000
Teekay LNG | Liquefied Gas Carriers | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 148,935,000 | 148,058,000 | 437,027,000 | 445,731,000
Teekay LNG | Conventional Tankers | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 0 | 1,597,000 | 0 | 6,728,000
Teekay Tankers | Conventional Tankers | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 170,240,000 | 187,444,000 | 758,632,000 | 632,612,000
Teekay Parent |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 77,342,000 | 95,833,000 | 257,717,000 | 301,747,000
Teekay Parent | Offshore Production | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 16,245,000 | 44,558,000 | 90,965,000 | 151,824,000
Teekay Parent | Corporate and Other [Member] | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | $ 61,097,000 | $ 51,275,000 | $ 166,752,000 | $ 149,923,000

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
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