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Summary of Significant Accounting Policies - Narrative (Details) |  |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jun. 30, 2024 USD ($) | May 31, 2024 USD ($) | Mar. 31, 2024 numberOfVariable variable | Dec. 31, 2024 USD ($) Segment store | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Number of macroeconomic variables | numberOfVariable |  |  | 3 |  |  |
Number of economic variables | numberOfVariable |  |  | 4 |  |  |
Number of economic scenario variables | numberOfVariable |  |  | 3 |  |  |
Number of economic forecast variables | variable |  |  | 4 |  |  |
Number of variables | numberOfVariable |  |  | 2 |  |  |
Macroeconomic variables, reasonable and supportable period (in months) |  |  | 18 months |  |  |
Historical loss rate on straight-line basis over loan's remaining maturity (in months) |  |  | 12 months |  |  |
Unamortized multifamily FHA MSR's | $ |  |  |  | $ 0 | $ 2,300,000 |
Goodwill impairment | $ | $ 104,200,000 | $ 104,200,000 |  | 104,168,000 | 0 | $ 0
Goodwill | $ | $ 0 |  |  | $ 0 | $ 104,168,000 |
Number of reportable segments | Segment |  |  |  | 1 |  |
Number of operating segments | Segment |  |  |  | 1 |  |
Minimum |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Individually-evaluated loan analysis, loan threshold amount | $ |  |  |  | $ 500,000 |  |
Furniture Fixtures and Equipment | Minimum |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Property, plant and equipment, useful life (in years) |  |  |  | 3 years |  |
Furniture Fixtures and Equipment | Maximum |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Property, plant and equipment, useful life (in years) |  |  |  | 7 years |  |
Computer Software and Hardware | Minimum |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Property, plant and equipment, useful life (in years) |  |  |  | 3 years |  |
Computer Software and Hardware | Maximum |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Property, plant and equipment, useful life (in years) |  |  |  | 5 years |  |
Building Improvements | Minimum |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Property, plant and equipment, useful life (in years) |  |  |  | 5 years |  |
Building Improvements | Maximum |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Property, plant and equipment, useful life (in years) |  |  |  | 20 years |  |
Banking Services |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Number of stores | store |  |  |  | 12 |  |
Lending Services |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Number of stores | store |  |  |  | 4 |  |

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- Definition Amount of unamortized loan commitment, origination, and other costs (fees) and purchase premium (discount) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481598/310-20-45-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-4 Reference 3: http://www.xbrl.org/2003/role/recommendedDisclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 3 -SubTopic 20 -Topic 310 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481569/310-20-50-3 + Details
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