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Income Taxes - Classification of Net Deferred Income Tax Assets (Detail) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Balance Sheet Classification of Deferred Income Tax Assets and Liabilities [Line Items] |  |
Net deferred income tax assets | $ 11,406 |
Net deferred income tax (liabilities) |  | $ (16,916)
Other noncurrent assets |  |
Balance Sheet Classification of Deferred Income Tax Assets and Liabilities [Line Items] |  |
Net deferred income tax assets | 67,900 | 49,937
Other noncurrent liabilities |  |
Balance Sheet Classification of Deferred Income Tax Assets and Liabilities [Line Items] |  |
Net deferred income tax (liabilities) | $ (56,494) | $ (66,853)

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