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Income Taxes - Components of Company's Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Deferred tax assets: |  |
Vessels and equipment | $ 1,646 | $ 5,868
Tax losses carried forward | 164,009 | 155,910
Other | 19,674 | 10,545
Total deferred tax assets | 185,329 | 172,323
Deferred tax liabilities: |  |
Vessels and equipment | 22,913 | 18,037
Provisions | 6,512 | 5,588
Other | 0 | 2,060
Total deferred tax liabilities | 29,425 | 25,685
Net deferred tax assets | 155,904 | 146,638
Valuation allowance | (153,302) | (144,560)
Net deferred tax assets | $ 2,602 | $ 2,078

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