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Income Taxes - Additional Information (Detail) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income Tax Reconciliation [Line Items] |  |  |
Net tax provision | $ 8,122,000 | $ 6,007,000 | $ 13,152,000
Cash taxes paid net of refunds | 7,800,000 | 5,600,000 | 3,400,000
Net operating loss carryforwards, indefinite | $ 8,700,000 |  |
Foreign net operating loss carryforwards expiration period start year | 2024 |  |
Foreign net operating loss carryforwards expiration period end year | 2029 |  |
Valuation allowance | $ 3,137,000 | 3,495,000 |
Net decrease in valuation allowance from the prior year | (400,000) |  |
Tax liability, undistributed earnings of foreign subsidiaries | 110,600,000 |  |
Deferred tax liabilities undistributed earnings of subsidiaries | 112,200,000 |  |
Deferred tax liabilities withholding cost related to earnings | 100,000 |  |
Accrued interest |  | $ 0 | $ 0
Maximum [Member] |  |  |
Income Tax Reconciliation [Line Items] |  |  |
Accrued interest | 100,000 |  |
Accrued penalties | 100,000 |  |
Income Tax Provision [Member] |  |  |
Income Tax Reconciliation [Line Items] |  |  |
Net decrease in valuation allowance from the prior year | (300,000) |  |
Foreign Country [Member] |  |  |
Income Tax Reconciliation [Line Items] |  |  |
Net operating loss carryforwards | 10,600,000 |  |
Net operating loss carryforwards, definite | $ 1,900,000 |  |

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