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Income Taxes - Summary of Components of Income from Continuing Operations before Provision for Income Taxes (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income (loss) before provision for income taxes: |  |  |
Income before provision for income taxes | $ 107,512 | $ 117,220 | $ 99,226
United States [Member] |  |  |
Income (loss) before provision for income taxes: |  |  |
Income before provision for income taxes | 112,425 | 119,446 | 100,031
Foreign [Member] |  |  |
Income (loss) before provision for income taxes: |  |  |
Income before provision for income taxes | $ (4,913) | $ (2,226) | $ (805)

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