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Regulatory and Operational Matters - Narrative (Details) - Subsidiaries | Jun. 30, 2025 | Dec. 31, 2024 | Apr. 17, 2024
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Common equity tier 1 capital ratio, actual | 0.1561 | 0.0758 |
Tier 1 capital ratio, actual | 0.1561 | 0.0758 |
Tier 1 leverage capital ratio, actual | 0.1010 | 0.0579 |
Total risk-based capital ratio, actual | 0.1634 | 0.0771 |
Mandated Ratio |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Common equity tier 1 capital ratio, actual |  |  | 0.1000
Tier 1 capital ratio, actual |  |  | 0.1000
Tier 1 leverage capital ratio, actual |  |  | 0.0900
Total risk-based capital ratio, actual |  |  | 0.1150

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