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Borrowings, Short-Term Borrowings (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Borrowings [Abstract]      
FHLB, unused lines of credit available for short-term financing $ 3,460,000 $ 2,870,000  
Short-term borrowings [Abstract]      
Balance at year-end 162,942 386,651  
Federal Funds Purchased [Member]      
Short-term borrowings [Abstract]      
Balance at year-end 0 0 $ 60,000
Average during the year 13,016 24,575 14,644
Maximum month end balance $ 78,000 $ 60,000 $ 80,000
Weighted average rate during the year 5.47% 5.16% 4.02%
Weighted average rate at year-end 5.54% 5.63% 4.28%
Securities Sold Under Repurchase Agreements [Member]      
Short-term borrowings [Abstract]      
Balance at year-end $ 146,942 $ 93,651 $ 86,012
Average during the year 95,879 70,251 69,561
Maximum month end balance $ 146,942 $ 96,195 $ 88,637
Weighted average rate during the year 2.26% 1.06% 0.10%
Weighted average rate at year-end 2.35% 1.49% 0.11%
Other Short-Term Borrowings [Member]      
Short-term borrowings [Abstract]      
Balance at year-end $ 16,000 $ 293,000 $ 439,000
Average during the year 103,963 450,377 46,371
Maximum month end balance $ 292,000 $ 593,000 $ 439,000
Weighted average rate during the year 5.43% 5.24% 4.24%
Weighted average rate at year-end 5.48% 5.28% 4.45%