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Income Taxes (Narrative) (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Oct. 31, 2019 | Mar. 31, 2019 | Jun. 30, 2019 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2015
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Income taxes Paid |  |  |  | $ (3,140) | $ 924 | $ 11,100 |
Tax Year 2014 [Member] |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Net reduction in taxes due to the federal government |  |  |  | 17,600 |  |  |
Income tax refund receivable |  |  |  |  |  |  | $ 2,300
Interest expense |  |  |  | 100 |  |  |
Increase reserve provision |  |  |  | $ 500 | $ 4,100 |  |
Income taxes Paid |  | $ 800 |  |  |  |  |
Tax Year 2015 [Member] |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Income taxes Paid |  |  | $ 100 |  |  |  |
Tax Year 2016 [Member] |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Income taxes Paid | $ 1,900 |  |  |  |  |  |
Tax Year 2017 [Member] |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Income taxes Paid | $ 1,900 |  |  |  |  |  |

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