v3.24.3
Investment Securities - Weighted Average Yields for Available-for-Sale Debt Securities (Details)
Sep. 30, 2024
U.S. Treasury securities  
Debt Securities, Available-for-sale [Line Items]  
Due within one year 3.15%
Due after one year through five years 3.12%
Due after five years through ten years 0.00%
Due after ten years 0.00%
Total 3.13%
U.S. government agency securities  
Debt Securities, Available-for-sale [Line Items]  
Due within one year 0.00%
Due after one year through five years 0.00%
Due after five years through ten years 0.00%
Due after ten years 0.00%
Total 0.00%
Residential mortgage-backed securities  
Debt Securities, Available-for-sale [Line Items]  
Due within one year 0.00%
Due after one year through five years 0.00%
Due after five years through ten years 3.91%
Due after ten years 4.68%
Total 4.68%
CRT securities  
Debt Securities, Available-for-sale [Line Items]  
Due within one year 0.00%
Due after one year through five years 0.00%
Due after five years through ten years 4.95%
Due after ten years 0.00%
Total 4.95%