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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Income Taxes [Line Items] |  |  |
Foreign pre-tax earnings | $ 80,000 | $ 80,000 | $ 76,000
Qualified dividend received deduction | 79,000 |  |
Tax expense (benefit) from employee share-based payments | 13,000 | $ 5,000 | $ 1,000
Decrease in provision for income taxes | $ 16,000 |  |
Effective tax rates | 22.40% | 23.50% | 24.20%
Deferred federal state and foreign tax benefit | $ 3,000 | $ 37,000 |
Future taxable income, amount | 1,100,000 |  |
Deferred state tax benefit (net of the federal benefit) | (3,643) | (1,609) | $ (6,107)
Deferred foreign tax benefit | 25,000 |  |
Operating loss carry forward federal and state | 6,000 |  |
Deferred federal tax benefits | 28,499 | 19,716 | $ 9,935
Valuation allowances | 82,690 | 72,667 |
Increase in estimated liabilities for uncertain tax positions | 1,000 | 1,000 |
Impact of unrecognized tax benefits if recognized | $ 2,000 | 2,000 |
Period of expiration of the statute of limitations for certain jurisdictions | within the next twelve months |  |
Jurisdictions statutes of limitations expiration period | 12 months |  |
Maximum |  |  |
Income Taxes [Line Items] |  |  |
Accrued interest and penalties | $ 1,000 | 1,000 |
Foreign and U.S. state and local jurisdictions have statutes of limitations, in years | 4 years |  |
Minimum |  |  |
Income Taxes [Line Items] |  |  |
Foreign and U.S. state and local jurisdictions have statutes of limitations, in years | 3 years |  |
Allowance in relation to state tax benefit |  |  |
Income Taxes [Line Items] |  |  |
Valuation allowances | $ 78,000 | 68,000 |
Net Operating Loss |  |  |
Income Taxes [Line Items] |  |  |
Increase in valuation allowance | 10,000 |  |
Foreign Net Operating Losses and Credit Carryforwards |  |  |
Income Taxes [Line Items] |  |  |
Increase in valuation allowance | 4,000 | $ 4,000 |
State and Local Jurisdiction |  |  |
Income Taxes [Line Items] |  |  |
Deferred state tax benefit (net of the federal benefit) | 76,000 |  |
Interest expense carryforwards | 129,000 |  |
Interest expense, deferred tax benefit | 9,000 |  |
Foreign Tax Authority |  |  |
Income Taxes [Line Items] |  |  |
Net operating losses and interest expense | 101,000 |  |
Riverside Medical Clinic Patient Services, LLC |  |  |
Income Taxes [Line Items] |  |  |
Deferred federal tax benefits | $ (1,000) |  |

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