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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income Tax Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |
Valuation allowance | $ 19,865 |  |  |  | $ 21,929 |  |  |  | $ 19,865 | $ 21,929 |
Deferred tax liability not recognized related to tax basis difference in investment in foreign subsidiaries | 22,900 |  |  |  |  |  |  |  | 22,900 |  |
Income tax provision | 10,624 | $ 19,857 | $ 21,313 | $ 19,930 | 7,834 | $ 19,964 | $ 14,113 | $ 15,270 | 71,724 | 57,181 | $ (20,857)
Liability for uncertain tax positions | $ 11,100 |  |  |  | $ 3,700 |  |  |  | $ 11,100 | $ 3,700 |

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