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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019
Income Tax Disclosure [Line Items] |  |  |  |  |
Effective tax rate expense (benefit) | 68.50% | 17.30% | 22.90% | 6.20% |
Income tax benefit, result of CARES act of 2020 |  |  | $ 7,400 |  |
Effective tax rate reduction related to transfer pricing study |  | 29.10% |  | 29.10% |
Deferred tax assets, gross | $ 59,767 |  | 59,767 |  | $ 56,177
Valuation allowance established against deferred tax assets | 52,194 |  | 52,194 |  | 48,616
Deferred tax assets | 7,573 |  | 7,573 |  | 7,561
Domestic [Member] |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Valuation allowance established against deferred tax assets | 3,600 |  | 3,600 |  |
Deferred tax assets, gross | 50,164 |  | 50,164 |  | 46,266
Valuation allowance established against deferred tax assets | $ 50,164 |  | $ 50,164 |  | $ 46,266

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