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Income Taxes (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Income Tax Disclosure [Abstract] |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% | 21.00% | 21.00%
Income Tax Uncertainties [Abstract] |  |  |
Unrecognized Tax Benefits that Would Impact Effective Tax Rate | $ 3,900 | $ 4,000 |
Unrecognized Tax Benefits, Period Increase (Decrease) | (100) | 400 |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued | 900 | 900 |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense | 100 | 0 | $ (1,400)
Decrease in Unrecognized Tax Benefits is Reasonably Possible | 0 |  |
Increase in Unrecognized Tax Benefits is Reasonably Possible | 1,000 |  |
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] |  |  |
Balance beginning of period | 5,010 | 4,585 |
Additions based on tax positions related to current year | 767 | 1,138 |
Additions for tax positions of prior years | 0 | 124 |
Reductions for tax positions of prior years | (216) | 0 |
Reductions due to lapse of applicable statute of limitations | (428) | (701) |
Settlements | (196) | (136) |
Balance end of period | 4,937 | 5,010 | $ 4,585
Valuation Allowance [Abstract] |  |  |
Valuation Allowance, Amount | $ 0 | $ 0 |

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