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Income Taxes (Details) - USD ($) | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Income Tax Disclosure [Abstract] |  |
Provision for income taxes | $ 26,733,000 | $ 31,174,000
Effective tax rate | 19.50% | 24.00%
Minimum |  |
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items] |  |
Increase in unrecognized tax benefits is reasonably possible | $ 0 |
Maximum |  |
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items] |  |
Increase in unrecognized tax benefits is reasonably possible | $ 1,000,000 |

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