v3.26.3
Balance Sheet Offsetting - Liabilities (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Total    
Gross Amounts of Recognized Liabilities $ 1,813,881 $ 1,773,766
Net Amounts of Liabilities Presented in the Balance Sheet 1,813,881 1,773,766
Gross Amounts Not Offset in the Balance Sheet    
Financial Instruments (1,693,420) (1,687,346)
Cash Collateral Pledged   (1,795)
Net Amount 120,461 84,625
Institutional Counterparties    
Securities loaned:    
Gross Amounts of Recognized Liabilities 1,484,563 1,495,133
Net Amounts of Liabilities Presented in the Balance Sheet 1,484,563 1,495,133
Gross Amounts Not Offset in the Balance Sheet    
Financial Instruments (1,404,774) (1,418,288)
Net Amount 79,789 76,845
Institutional Counterparties | Interest Rate Swaps    
Derivatives:    
Gross Amounts of Recognized Liabilities 1,522 2,943
Net Amounts of Liabilities Presented in the Balance Sheet 1,522 2,943
Gross Amounts Not Offset in the Balance Sheet    
Net Amount 1,522 2,943
Institutional Counterparties | Repurchase Agreements    
Repurchase agreements:    
Gross Amounts of Recognized Liabilities 288,643 268,805
Net Amounts of Liabilities Presented in the Balance Sheet 288,643 268,805
Gross Amounts Not Offset in the Balance Sheet    
Financial Instruments (288,643) (268,805)
Net Amount 0 0
Institutional Counterparties | Forward MBS Derivatives    
Derivatives:    
Gross Amounts of Recognized Liabilities 39,153 6,885
Net Amounts of Liabilities Presented in the Balance Sheet 39,153 6,885
Gross Amounts Not Offset in the Balance Sheet    
Financial Instruments (3) (253)
Cash Collateral Pledged   (1,795)
Net Amount $ 39,150 $ 4,837