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Stockholders' Equity (Narrative) (Details) - USD ($) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019
Equity, Class of Treasury Stock [Line Items] |  |  |
Preferred stock | $ 92,000,000 |  | $ 92,000,000
Common stock | 59,885,000 |  | 59,885,000
Legal surplus | 101,200,000 |  | 95,800,000
Stock Repurchase Program Remaining Authorized Repurchase Amount | $ 5,500,000 |  |
Stock repurchase program remaining number of shares authorized to be repurchased | 442,251 |  |
Stock Repurchase Program Authorized Amount | $ 70,000,000 |  |
Share price | $ 12.46 |  |
Shares repurchased during period, shares | 175,000 | 0 |
Common shares repurchased as part of the stock repurchase program (Value) | $ 2,226,000 | $ 0 |
Share repurchased, average price per share | $ 12.69 |  |
Preferred Stock [Member] |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |
Preferred Stock Issue Costs | $ 10,100,000 |  | 10,100,000
Common Stock [Member] |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |
Common Stock Issuance Cost | $ 13,600,000 |  | $ 13,600,000
Shares repurchased during period, shares | 0 |  |

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