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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income Taxes [Line Items] |  |  |
Corporate income tax rate percent | 21.00% |  | 35.00%
Accumulated undistributed earnings and profits | $ 432,994 |  |
One-time transition tax accumulated undistributed earnings and profits | 370,389 |  |
Valuation allowance against deferred assets – non-current | 60,359 | $ 54,725 |
Gross unrecognized tax benefits, including interest and penalties | 14,294 | 13,953 |
Unrecognized tax benefit that if recognized would impact effective tax rate | 14,294 | 13,953 |
Accrued for interest and penalties | 4,058 | $ 3,390 |
Decrease in unrecognized tax benefits | 9,494 |  |
Decrease in accrued interest due to potential decrease in unrecognized tax benefits | $ (3,952) |  |
Foreign | Significant Portion of Tax Credit Carryforwards |  |  |
Income Taxes [Line Items] |  |  |
Tax credit carryforwards expiring year | 2024 |  |
State | Minimum |  |  |
Income Taxes [Line Items] |  |  |
Net operating losses carried forward expiring period | 5 years |  |
State | Maximum |  |  |
Income Taxes [Line Items] |  |  |
Net operating losses carried forward expiring period | 20 years |  |
Net operating losses carried forward expiring year | 2037 |  |

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