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Summary of Significant Accounting Policies (Narrative) (Details) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 USD ($) segment | Dec. 31, 2022 USD ($)
Property, Plant and Equipment [Line Items] |  |
Number of segments | segment | 3 |
Accrued interest receivable on loans | $ 20,580,000 |
Required cash on deposit at Federal Reserve | $ 0 | $ 0
Minimum |  |
Property, Plant and Equipment [Line Items] |  |
Finite-lived intangible asset, useful life (in years) | 6 years |
Maximum |  |
Property, Plant and Equipment [Line Items] |  |
Finite-lived intangible asset, useful life (in years) | 10 years |
Buildings and related components | Minimum |  |
Property, Plant and Equipment [Line Items] |  |
Premises, furniture, and equipment, useful life (in years) | 10 years |
Buildings and related components | Maximum |  |
Property, Plant and Equipment [Line Items] |  |
Premises, furniture, and equipment, useful life (in years) | 40 years |
Furniture, fixtures and equipment | Minimum |  |
Property, Plant and Equipment [Line Items] |  |
Premises, furniture, and equipment, useful life (in years) | 3 years |
Furniture, fixtures and equipment | Maximum |  |
Property, Plant and Equipment [Line Items] |  |
Premises, furniture, and equipment, useful life (in years) | 10 years |

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- Definition Cash deposited in a special reserve account for the exclusive benefit of customers pursuant to SEC Regulations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 210 -Topic 942 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481281/942-210-50-1 + Details
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- Definition Amount, before allowance for credit loss, of accrued interest on financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-18 + Details
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