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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Income Taxes [Line Items] |  |  |  |
Percentage of income attributable to wholly-owned operations and investments for which income tax expense and effective tax rate calculated | 100.00% |  |  |
Undistributed earnings of foreign subsidiaries | $ 130,000 |  |  |
Valuation allowance | 0 | $ 0 |  |
Gross unrecognized tax benefits | 3,695 | 3,513 | $ 3,719 | $ 3,135
Unrecognized tax benefits that, if recognized, would affect the effective tax rate | 2,573 | 2,416 |  |
Estimated accrued interest and penalties resulting from unrecognized tax benefits | $ 414 | $ 384 |  |
Minimum |  |  |  |
Income Taxes [Line Items] |  |  |  |
State and other net operating loss carry forwards expiration date | 2017 |  |  |
Maximum |  |  |  |
Income Taxes [Line Items] |  |  |  |
State and other net operating loss carry forwards expiration date | 2036 |  |  |
State and other |  |  |  |
Income Taxes [Line Items] |  |  |  |
Net operating loss carry forwards | $ 6,872 |  |  |
Federal |  |  |  |
Income Taxes [Line Items] |  |  |  |
Net operating loss carry forwards | $ 0 |  |  |

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