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Securities and Other Investments (Tables)
 9 Months Ended
Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]  
Schedule of Amortized Cost and Fair Value of Securities AFS
The amortized cost and fair value of securities AFS are summarized as follows.
September 30, 2024
(in thousands)Amortized CostGross
Unrealized
Gains		Gross
Unrealized
Losses		Estimated Fair Value
Securities AFS:
U.S. Treasury securities$15,844 $— $1,384 $14,460 
U.S. government agency securities5,914 6 26 5,894 
State, county and municipals318,878 478 19,426 299,930 
Mortgage-backed securities446,648 3,966 26,804 423,810 
Corporate debt securities87,238 154 5,579 81,813 
Total securities AFS$874,522 $4,604 $53,219 $825,907 
December 31, 2023
(in thousands)Amortized CostGross
Unrealized
Gains		Gross
Unrealized
Losses		Estimated Fair Value
Securities AFS:
U.S. Treasury securities$15,988 $— $1,865 $14,123 
U.S. government agency securities7,430 — 46 7,384 
State, county and municipals360,496 651 26,325 334,822 
Mortgage-backed securities388,378 1,437 37,193 352,622 
Corporate debt securities102,895 26 9,299 93,622 
Total securities AFS$875,187 $2,114 $74,728 $802,573 
Schedule of Proceeds and Realized Gains or Losses from the Sale of AFS and HTM Securities
Proceeds and realized gains or losses from the sale of AFS and HTM securities were as follows.
Nine Months Ended September 30,
(in thousands)20242023
Securities AFS:
Gross gains$1,038 $268 
Gross losses(70)(605)
Gains (losses) on sales of securities AFS, net
$968 $(337)
Proceeds from sales of securities AFS$4,987 $28,992 
Securities HTM:
Gross gains$— $— 
Gross losses— (37,723)
Gains (losses) on sales of securities HTM, net$— $(37,723)
Proceeds from sales of securities HTM$— $460,051 
Schedule of Unrealized Losses and Fair Value of Investment Securities
The following table presents gross unrealized losses and the related estimated fair value of investment securities for which an allowance for credit losses has not been recorded, aggregated by investment category and length of time individual securities have been in a continuous unrealized loss position.
September 30, 2024
Less than 12 months12 months or moreTotal
($ in thousands)Fair
Value		Unrealized
Losses		Fair
Value		Unrealized
Losses		Fair
Value		Unrealized
Losses		Number of
Securities
Securities AFS:
U.S. Treasury securities$— $— $14,460 $1,384 $14,460 $1,384 1 
U.S. government agency securities398 1 3,861 25 4,259 26 8 
State, county and municipals14,176 200 242,711 19,226 256,887 19,426 446 
Mortgage-backed securities9,737 78 275,572 26,726 285,309 26,804 410 
Corporate debt securities1,962 24 71,747 5,555 73,709 5,579 47 
Total
$26,273 $303 $608,351 $52,916 $634,624 $53,219 912 
December 31, 2023
Less than 12 months12 months or moreTotal
($ in thousands)Fair
Value		Unrealized
Losses		Fair
Value		Unrealized
Losses		Fair
Value		Unrealized
Losses		Number of
Securities
Securities AFS:
U.S. Treasury securities$— $— $14,123 $1,865 $14,123 $1,865 1 
U.S. government agency securities4,621 31 1,793 15 6,414 46 10 
State, county and municipals29,336 330 257,916 25,995 287,252 26,325 528 
Mortgage-backed securities6 — 291,124 37,193 291,130 37,193 433 
Corporate debt securities— — 85,265 9,299 85,265 9,299 59 
Total
$33,963 $361 $650,221 $74,367 $684,184 $74,728 1,031 
Schedule of Amortized Cost and Fair Value of Investment Securities by Contractual Maturity
The amortized cost and fair value of investment securities by contractual maturity are shown below. Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties; as this is particularly inherent in mortgage-backed securities, these securities are not included in the maturity categories below.
As of September 30, 2024
Securities AFS
(in thousands)Amortized CostFair Value
Due in less than one year$23,894 $23,735 
Due in one year through five years144,376 135,855 
Due after five years through ten years162,293 150,189 
Due after ten years97,311 92,318 
427,874 402,097 
Mortgage-backed securities446,648 423,810 
Total investment securities$874,522 $825,907 
Schedule of Carrying Value of other Investments The carrying value of other investments are summarized as follows.
September 30, 2024December 31, 2023
(in thousands)AmountAmount
Federal Reserve Bank stock
$33,289 $33,087 
Federal Home Loan Bank (“FHLB”) stock
9,674 9,674 
Equity securities with readily determinable fair values8,174 4,240 
Other investments9,306 10,559 
Total other investments$60,443 $57,560