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Income Taxes - Additional Information (Detail) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Income Tax [Line Items] |  |  |
Pretax income (loss) from continuing operations | $ 146,830,000 | $ 93,022,000 | $ 74,352,000
Favorable adjustment related to release of valuation allowance | $ 16,000,000.0 |  |
Effective income tax rate reconciliation, tax settlement, foreign, percent | 10.90% |  |
Recognition of an excess tax benefit and deficiency | $ 400,000 | $ 1,200,000 | $ 1,000,000.0
Effective tax rate impact associated with stock-based compensation | 0.30% | 1.30% | 1.40%
Decrease in effective tax rate due to settlement of a state income tax audit, percentage |  | (0.50%) | 0.10%
Effective income tax rate, deductible amount |  | $ 29,700,000 |
Income tax rate non deductible legal settlement |  |  | $ 1,100,000
Effective income tax rate legal agreements |  |  | 1.40%
U.S. corporate tax rate | 21.00% | 21.00% | 21.00%
Foreign tax credit carryforwards | $ 27,321,000 | $ 32,998,000 |
Unrecognized tax benefits that would impact effective tax rate | 10,800,000 | 9,300,000 |
Short-term reserves | 1,000,000.0 |  |
Long-term reserves | 10,800,000 |  |
Interest and penalties | $ 1,900,000 | 1,900,000 |
Significant change in unrecognized tax benefits, nature of event description | Due to the expiration of various statutes of limitations |  |
Gross unrecognized tax benefits change range, minimum | $ 0 |  |
Gross unrecognized tax benefits change range, maximum | 1,500,000 |  |
Deferred tax asset, gross | 194,400,000 | 334,900,000 |
Deferred tax liability, gross | $ 51,500,000 | 56,800,000 |
Percentage of limited NOL carryforwards of future taxable income | 80.00% |  |
Valuation allowance against portion of the foreign tax credit carryforward not supported by ODL | $ 17,000,000.0 |  |
Net deferred income tax assets | 29,000,000.0 | 45,000,000.0 |
Foreign tax credit carryforward, prior to expiration | $ 16,000,000.0 |  |
CARES Act [Member] |  |  |
Income Tax [Line Items] |  |  |
Operating loss carryforwards, limitations on use | The CARES Act, which provides tax relief to assist companies dealing with the effects of COVID-19, suspended this 80% limitation during the 2018 through 2020 tax years and allows for a 5 year carryback of NOL’s incurred in tax years beginning after December 31, 2017 and before January 1, 2021. |  |
Domestic Country [Member] |  |  |
Income Tax [Line Items] |  |  |
Net operating loss carry forwards |  | 109,700,000 |
Foreign Country [Member] |  |  |
Income Tax [Line Items] |  |  |
Foreign tax credits | $ 33,000,000.0 |  |
State [Member] |  |  |
Income Tax [Line Items] |  |  |
Net operating loss carry forwards | 314,200,000 |  |
Combined State [Member] |  |  |
Income Tax [Line Items] |  |  |
Net operating loss carry forwards | 15,500,000 |  |
Separate State [Member] |  |  |
Income Tax [Line Items] |  |  |
Net operating loss carry forwards | 180,300,000 |  |
Maximum [Member] |  |  |
Income Tax [Line Items] |  |  |
U.S. corporate tax rate |  |  | 35.00%
Unrecognized tax benefit, income tax penalties and interest benefit (expense) recognized | $ (100,000) | (100,000) | $ 100,000
Maximum [Member] | Foreign Country [Member] |  |  |
Income Tax [Line Items] |  |  |
Foreign tax credits, expiration year | 2023 |  |
Maximum [Member] | State [Member] |  |  |
Income Tax [Line Items] |  |  |
Net operating loss carry forwards, expiration year | 2037 |  |
Minimum [Member] |  |  |
Income Tax [Line Items] |  |  |
U.S. corporate tax rate |  |  | 21.00%
Minimum [Member] | Foreign Country [Member] |  |  |
Income Tax [Line Items] |  |  |
Foreign tax credits, expiration year | 2022 |  |
Minimum [Member] | State [Member] |  |  |
Income Tax [Line Items] |  |  |
Net operating loss carry forwards, expiration year | 2021 |  |
Florida [Member] |  |  |
Income Tax [Line Items] |  |  |
Net benefit associated with results of state income tax audit |  | $ 500,000 |
Decrease in effective tax rate due to settlement of a state income tax audit, percentage |  | 0.50% |

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