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Income Taxes (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Dec. 31, 2018
Income Taxes [Abstract] |  |  |  |  |
Provision for income taxes | $ 24,527 | $ 20,638 | $ 47,330 | $ 45,296 |
Effective tax rate | 34.60% | 28.80% | 34.60% | 34.40% |
Net deferred tax assets | $ 14,800 |  | $ 14,800 |  | $ 19,100
Undistributed earnings of non-U.S. subsidiaries |  |  |  |  | 60,000
Incremental taxes if undistributed earnings on non-U.S. subsidiaries were repatriated |  |  |  |  | $ 6,000
Minimum [Member] |  |  |  |  |
Income Taxes [Abstract] |  |  |  |  |
Decrease in unrecognized tax benefits within the next 12 months that is reasonably possible | (500) |  | $ (500) |  |
Maximum [Member] |  |  |  |  |
Income Taxes [Abstract] |  |  |  |  |
Statute of limitations related to income tax examinations |  |  | 10 years |  |
Income Taxes [Abstract] |  |  |  |  |
Decrease in unrecognized tax benefits within the next 12 months that is reasonably possible | $ (1,500) |  | $ (1,500) |  |

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- Definition Statute of limitations period related to income tax examinations in certain countries, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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