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Securities Sold Under Agreements to Repurchase - Schedule of Remaining Contractual Maturity of Secured Borrowings and Class of Collateral Pledged Under Repurchase Agreements (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Sep. 30, 2024
Assets Sold under Agreements to Repurchase [Line Items]      
Securities sold under agreements to repurchase $ 277,594 $ 268,975 $ 244,626
U.S. Treasury and agency securities      
Assets Sold under Agreements to Repurchase [Line Items]      
Securities sold under agreements to repurchase 277,594    
Overnight and Continuous      
Assets Sold under Agreements to Repurchase [Line Items]      
Securities sold under agreements to repurchase 277,594    
Overnight and Continuous | U.S. Treasury and agency securities      
Assets Sold under Agreements to Repurchase [Line Items]      
Securities sold under agreements to repurchase 277,594    
Up to 30 Days      
Assets Sold under Agreements to Repurchase [Line Items]      
Securities sold under agreements to repurchase 0    
Up to 30 Days | U.S. Treasury and agency securities      
Assets Sold under Agreements to Repurchase [Line Items]      
Securities sold under agreements to repurchase 0    
 30-90 Days      
Assets Sold under Agreements to Repurchase [Line Items]      
Securities sold under agreements to repurchase 0    
 30-90 Days | U.S. Treasury and agency securities      
Assets Sold under Agreements to Repurchase [Line Items]      
Securities sold under agreements to repurchase 0    
Greater Than 90 days      
Assets Sold under Agreements to Repurchase [Line Items]      
Securities sold under agreements to repurchase 0    
Greater Than 90 days | U.S. Treasury and agency securities      
Assets Sold under Agreements to Repurchase [Line Items]      
Securities sold under agreements to repurchase $ 0