Quarterly report [Sections 13 or 15(d)]

Borrowings - Narrative (Details)

v3.26.1
Borrowings - Narrative (Details) - USD ($)
Mar. 31, 2026
Dec. 31, 2025
Line of Credit Facility [Line Items]    
Other borrowings $ 0 $ 0
Asset Pledged as Collateral    
Line of Credit Facility [Line Items]    
Financial instruments, owned, at fair value 306,900,000 $ 315,500,000
Federal Home Loan Bank Advances    
Line of Credit Facility [Line Items]    
Maximum borrowing capacity 25,000,000  
Federal Home Loan Bank Advances | Asset Pledged as Collateral    
Line of Credit Facility [Line Items]    
Financial instruments, owned, at fair value $ 757,000,000