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Income Taxes (Additional Information) (Detail) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items] |  |  |  |
Provision for income taxes | $ 29,435,000 | $ 32,772,000 | $ 82,003,000 | $ 88,614,000
Effective tax rate | 29.60% | 29.20% | 27.70% | 29.20%
Minimum |  |  |  |
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items] |  |  |  |
Reasonably possible change in unrecognized tax benefits over next 12 months | $ 0 |  | $ 0 |
Maximum |  |  |  |
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items] |  |  |  |
Reasonably possible change in unrecognized tax benefits over next 12 months | 2,700,000 |  | 2,700,000 |
Hydra-Stop Product Line | Disposed of by Sale |  |  |  |
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items] |  |  |  |
Foreign withholding taxes | $ 5,200,000 |  | $ 5,200,000 |

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