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Estimated Fair Values (Narrative) (Details) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) | Dec. 31, 2020 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Transfers from level 2 to level 3 | $ 0 | $ 0 |  | $ 1,800,000 |
Gains (Losses) from fair value changes on originated loans held for sale | (600,000) | $ 600,000 | $ (2,900,000) | $ 4,200,000 |
Originated loans held for sale, 90 days or more past due | 0 |  | 0 |  | $ 0
Fair Value, Measurements, Nonrecurring |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Liability measured at fair value on nonrecurring basis | $ 0 |  | $ 0 |  | $ 0
Discount Rate | Minimum |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Collateral-dependent Loans, Measurement Input | 0.05 |  | 0.05 |  |
OREO, measurement input | 0.06 |  | 0.06 |  |
Discount Rate | Maximum |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Collateral-dependent Loans, Measurement Input | 0.10 |  | 0.10 |  |
OREO, measurement input | 0.15 |  | 0.15 |  |
Discount Rate | Weighted Average |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Collateral-dependent Loans, Measurement Input | 0.08 |  | 0.08 |  |
OREO, measurement input | 0.08 |  | 0.08 |  |

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- Definition Amount of transfers of financial instrument classified as a liability into level 3 of the fair value hierarchy. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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