v3.24.3
Fair Value Disclosures - Level 3 Fair Value Assets Measured on a Recurring Basis (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
CRT securities        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance at Beginning of Period $ 12,328 $ 11,756 $ 11,995 $ 11,861
Purchases / Additions 0 0 0 0
Sales / Reductions (346) (341) (846) (828)
Realized 0 0 0 0
Unrealized 20 676 853 1,058
Balance at End of Period $ 12,002 $ 12,091 $ 12,002 $ 12,091
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Asset, Gain (Loss), Statement of Other Comprehensive Income or Comprehensive Income [Extensible Enumeration]     Accumulated other comprehensive loss, net of taxes Accumulated other comprehensive loss, net of taxes
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]     Noninterest Income, Other Noninterest Income, Other
Tax-exempt asset-backed securities        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Asset, Gain (Loss), Statement of Other Comprehensive Income or Comprehensive Income [Extensible Enumeration]     Accumulated other comprehensive loss, net of taxes Accumulated other comprehensive loss, net of taxes
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]     Noninterest Income, Other Noninterest Income, Other