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Regulatory Capital Requirements (Narrative) (Details) $ in Millions |  |  | 12 Months Ended
--- | --- | --- | ---
Jan. 01, 2019 | Jan. 01, 2016 | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Regulatory Capital Requirements [Abstract] |  |  |  |
Capital conversation buffer (as a percent) |  | 0.625% | 2.50% |
Bank specific capital conversation buffer (as a percent) |  |  | 6.25% |
Capital conservation buffer, minimum ratios, as a percent |  |  | 2.50% |
Due to affiliate, current |  |  | $ 0.0 | $ 0.0
Common Equity Tier 1 required for capital adequacy purposes, ratio (as a percent) |  |  | 7.00% |
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets |  |  | 8.50 |
Capital Required for Capital Adequacy to Risk Weighted Assets |  |  | 10.50 |
Tier One Leverage Capital Required for Capital Adequacy to Average Assets |  |  | 4.00 |
Common Equity Tier 1 required for well capitalized to risk weighted assets (as a percent) |  |  | 6.50% |
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets |  |  | 8.00 |
Capital Required to be Well Capitalized to Risk Weighted Assets |  |  | 10.00 |
Tier One Leverage Capital Required to be Well Capitalized to Average Assets |  |  | 5.00 |
Payment of dividends |  |  | $ 0.0 | $ 0.0
Common equity Tier 1 capital to risk-weighted assets minimum ratio |  |  | 4.50% |
Common equity tier one risk based capital required for capital adequacy to risk weighted asset raised |  |  | 6.00% |
Common equity tier one risk based capital required for capital adequacy to risk weighted asset total |  |  | 4.00% |
Additional capital conservation buffer in percentage | 0.625% |  |  |
Capital conservation buffer in percentage final | 2.50% |  |  |

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- Definition The minimum amount of Common Equity Tier 1 Risk Based Capital ratio (Common Equity Tier 1 capital divided by risk weighted assets) required for capital adequacy purposes in the regulatory framework for prompt corrective action. + References No definition available. + Details
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