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Income Taxes (Schedule of Effective Tax Rate Reconciliation) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income Tax Disclosure [Abstract] |  |  |
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount | $ 17,709 | $ 17,151 | $ 22,483
Effective Income Tax Rate Reconciliation, Equity in Earnings (Losses) of Unconsolidated Subsidiary, Amount | (1,252) | (2,743) | (3,630)
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount | 2,706 | 1,940 | 931
Write-off of state net operating losses | 1,063 | 283 | 41
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount | (1,063) | (283) | (41)
Income tax expense (benefit) related to the Tax Act | 0 | 0 | 19,017
Total income tax expense | 20,027 | 17,136 | 39,031
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount | $ 864 | $ 788 | $ 230
Effective Income Tax Rate Reconciliation, Percent | 23.70% | 21.00% | 60.80%

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