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v3.23.3

Short-Term Borrowings - Components and Selected Information (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Short-term borrowings |  |  |
Short-term borrowings | $ 500,000 |  | $ 75,000
Short-term FHLB fixed-rate advances: |  |  |
Short-term borrowings |  |  |
Borrowing capacity | 2,800,000 |  | 2,500,000
Federal Reserve Bank Advances [Member] |  |  |
Short-term borrowings |  |  |
Borrowing capacity | 3,800,000 |  | 1,200,000
Federal funds purchased: |  |  |
Short-term borrowings |  |  |
Short-term borrowings |  |  | $ 75,000
Annual interest rate |  |  | 4.35%
Highest month-end balance | 150,000 |  |
Average outstanding balance | $ 23,059 | $ 55 |
Weighted-average interest rate paid (as a percent) | 4.45% | 1.67% |
Short-term FHLB repo advance: |  |  |
Short-term borrowings |  |  |
Highest month-end balance | $ 400,000 |  |
Average outstanding balance | $ 156,319 |  |
Weighted-average interest rate paid (as a percent) | 5.25% |  |
Short-term FHLB fixed-rate advances: |  |  |
Short-term borrowings |  |  |
Short-term borrowings | $ 500,000 |  |
Weighted-average interest rate (as a percent) | 4.71% |  |
Highest month-end balance | $ 500,000 |  |
Average outstanding balance | $ 20,147 |  |
Weighted-average interest rate paid (as a percent) | 4.34% |  |

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