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Income taxes - Additional Information (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Income Tax Contingency [Line Items] |  |  |
Cumulative unremitted earnings, non-permanently reinvested | $ 1,100,000 |  |
Cumulative unremitted earnings, permanently reinvested | $ 1,200,000 |  |
Effective income tax rate, total | 18.60% | 13.30% | 6.10%
Realized net benefit as result of reducing our reserves with respect to uncertain tax positions | $ 2,000 | $ 800 | $ 1,700
Tax effect, carry forwards | 110,900 |  |
Deferred tax assets, valuation allowance | 91,531 | 143,177 |
Unrecognized tax benefits that would impact effective tax rate | 2,700 |  |
Unrecognized tax benefits, interest (benefit) expense | 200 | 200 | 200
Unrecognized tax benefits, penalties | (200) | (300) | $ (500)
Unrecognized tax benefits, interest (benefit) expense accrued | 600 | 800 |
Unrecognized tax benefits, penalties accrued | 1,500 | $ 1,800 |
Minimum |  |  |
Income Tax Contingency [Line Items] |  |  |
Unrecognized tax benefits change within next twelve months due to potential for resolution of foreign and U.S. examinations | 0 |  |
Maximum |  |  |
Income Tax Contingency [Line Items] |  |  |
Unrecognized tax benefits change within next twelve months due to potential for resolution of foreign and U.S. examinations | 2,000 |  |
No Expiration Date |  |  |
Income Tax Contingency [Line Items] |  |  |
Tax effect, carry forwards | 16,000 |  |
After 2020 but before the end of 2025 |  |  |
Income Tax Contingency [Line Items] |  |  |
Tax effect, carry forwards | 20,100 |  |
After 2025 |  |  |
Income Tax Contingency [Line Items] |  |  |
Tax effect, carry forwards | $ 74,800 |  |

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