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Segment Reporting - Reconciliation of Total Segment Assets (Detail) - USD ($) $ in Thousands | Jun. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Segment Reporting Information [Line Items] |  |
Total assets | $ 12,770,432 | $ 12,814,752
Segment Reconciling Items | Cash and cash equivalents |  |
Segment Reporting Information [Line Items] |  |
Total assets | 600,881 | 567,994
Segment Reconciling Items | Other assets not allocated |  |
Segment Reporting Information [Line Items] |  |
Total assets | 215,051 | 281,244
Eliminations |  |
Segment Reporting Information [Line Items] |  |
Total assets | (56,435) | (114,549)
Teekay Offshore | Offshore Logistics | Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Total assets | 2,660,051 | 2,677,784
Teekay Offshore | Offshore Production | Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Total assets | 2,643,055 | 2,672,100
Teekay Offshore | Conventional Tankers | Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Total assets | 3,800 | 4,818
Teekay LNG | Conventional Tankers | Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Total assets | 155,938 | 193,553
Teekay LNG | Liquefied Gas Carriers | Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Total assets | 4,189,383 | 3,957,088
Teekay Tankers | Conventional Tankers | Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Total assets | 1,716,171 | 1,870,211
Teekay Parent | Offshore Production | Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Total assets | 599,388 | 635,364
Teekay Parent | Conventional Tankers | Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Total assets | 30,870 | 55,937
Teekay Parent | Other | Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Total assets | $ 12,279 | $ 13,208

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