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Income Taxes Tax Provision and Applicable Rates (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Tax provision and applicable tax rates [Line Items] |  |  |  |
Current Federal, State and Local, Tax Expense (Benefit) | $ 7,779 | $ 10,007 | $ 9,927 | $ 21,529
Effective Income Tax Rate Reconciliation, Percent | 23.80% | 24.63% | 16.12% | 24.64%

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