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Income Taxes - Components of Company's Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Deferred tax assets: |  |
Vessels and equipment | $ 15,653 | $ 17,707
Tax losses carried forward | 96,008 | 108,869
Other | 4,084 | 13,779
Total deferred tax assets | 115,745 | 140,355
Deferred tax liabilities: |  |
Other | 6,054 | 18,596
Total deferred tax liabilities | 6,054 | 18,596
Net deferred tax assets | 109,691 | 121,759
Valuation allowance | (106,949) | (118,861)
Net deferred tax assets | $ 2,742 | $ 2,898

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