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Segment Reporting - Capital Expenditures by Segment (Detail) - Operating Segments - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Segment Reporting Information [Line Items] |  |
Total capital expenditures | $ 109,523 | $ 693,792
Teekay LNG | Liquefied Gas Carriers |  |
Segment Reporting Information [Line Items] |  |
Total capital expenditures | 96,357 | 687,841
Teekay LNG | Conventional Tankers |  |
Segment Reporting Information [Line Items] |  |
Total capital expenditures | 1,538 | 124
Teekay Tankers | Conventional Tankers |  |
Segment Reporting Information [Line Items] |  |
Total capital expenditures | $ 11,628 | $ 5,827

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