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v3.25.3

Investment Securities - Amortized cost and fair value by contractual maturity (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Mar. 31, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Amortized Cost |  |  |  |  |  |
Due after one year through five years | $ 94,797 |  |  | $ 94,797 |  |
Due after five years through ten years | 381,000 |  |  | 381,000 |  |
Due after ten years | 1,620,930 |  |  | 1,620,930 |  |
Total | 2,096,727 |  |  | 2,096,727 |  | $ 2,254,670
Fair Value |  |  |  |  |  |
Due after one year through five years | 87,406 |  |  | 87,406 |  |
Due after five years through ten years | 337,485 |  |  | 337,485 |  |
Due after ten years | 1,340,596 |  |  | 1,340,596 |  |
Fair Value | 1,765,487 |  |  | 1,765,487 |  | 1,834,527
Amortized Cost |  |  |  |  |  |
Due in one year or less | 34,325 |  |  | 34,325 |  |
Due after one year through five years | 323,617 |  |  | 323,617 |  |
Due after five years through ten years | 800,111 |  |  | 800,111 |  |
Due after ten years | 5,310,262 |  |  | 5,310,262 |  |
Amortized Cost | 6,468,315 |  |  | 6,468,315 |  | 5,129,216
Fair Value |  |  |  |  |  |
Due in one year or less | 34,214 |  |  | 34,214 |  |
Due after one year through five years | 322,072 |  |  | 322,072 |  |
Due after five years through ten years | 744,473 |  |  | 744,473 |  |
Due after ten years | 4,942,041 |  |  | 4,942,041 |  |
Fair Value | 6,042,800 |  |  | 6,042,800 |  | $ 4,320,593
Information with respect to sales of held-to-maturity |  |  |  |  |  |
Proceeds from sales of investment securities held to maturity | 0 |  | $ 0 | 0 | $ 0 |
Information with respect to sales of available-for-sale securities |  |  |  |  |  |
Sale proceeds |  |  |  | 2,874,110 |  |
Gross realized gains |  |  |  | 8,892 |  |
Gross realized losses |  |  |  | (237,703) |  |
Net realized losses |  |  |  | (228,811) |  |
Sold securities | $ 0 | $ 1,800,000 | $ 0 |  | $ 0 |
Realized gains or losses |  | $ 0 |  |  |  |
Sales of Securities Acquired from Independent |  |  |  |  |  |
Information with respect to sales of available-for-sale securities |  |  |  |  |  |
Sale proceeds |  |  |  | 1,279,717 |  |
Investment Securities Sales |  |  |  |  |  |
Information with respect to sales of available-for-sale securities |  |  |  |  |  |
Sale proceeds |  |  |  | 1,594,393 |  |
Gross realized gains |  |  |  | 8,892 |  |
Gross realized losses |  |  |  | (237,703) |  |
Net realized losses |  |  |  | $ (228,811) |  |

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