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Debt - Narrative (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2024 | Dec. 31, 2023
Debt Instrument [Line Items] |  |
Short term borrowings | $ 114,097 | $ 241,532
Maturity of federal funds purchased from correspondent banks | one business day |
Maximum borrowing capacity | $ 3,100,000 |
Current borrowing available | 1,900,000 |
Federal home loan bank, maximum amount available, net of deposits and advances | 2,100,000 |
Letter of credit outstanding, amount | 154,000 | 153,500
Other Correspondent Banks |  |
Debt Instrument [Line Items] |  |
Line of credit facility, remaining borrowing capacity | 35,000 |
Outstanding drawings | $ 0 | $ 0

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