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Securities (Tables)
 9 Months Ended
Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]  
Schedule of Securities Available-for-Sale
The amortized cost, unrealized gross gains and losses recognized in accumulated other comprehensive income (loss), and fair value of securities available-for-sale were as follows:
Securities Available-for-Sale:Amortized
Cost		Gross
Unrealized
Gains		Gross
Unrealized
Losses		 Fair
Value
    
September 30, 2024    
U.S. Treasury$116,385 $78 $— $116,463 
Obligations of State and Political Subdivisions583,453 43 (105,095)478,401 
MBS/CMO812,528 5,586 (93,042)725,072 
US Gov’t Sponsored Entities & Agencies256,808 926 (29,676)228,058 
Total$1,769,174 $6,633 $(227,813)$1,547,994 
December 31, 2023    
U.S. Treasury$— $— $— $— 
Obligations of State and Political Subdivisions889,940 1,309 (122,374)768,875 
MBS/CMO761,025 28 (116,013)645,040 
US Gov’t Sponsored Entities & Agencies220,295 — (37,378)182,917 
Total$1,871,260 $1,337 $(275,765)$1,596,832 
Schedule of Securities by Contractual Maturity
The amortized cost and fair value of securities available-for-sale at September 30, 2024 by contractual maturity are shown below. Expected maturities may differ from contractual maturities because some issuers have the right to call or prepay certain obligations with or without call or prepayment penalties. Mortgage-backed Securities are not due at a single maturity date and are shown separately.
Securities Available-for-Sale:Amortized
Cost		Fair
Value
Due in one year or less$117,176 $117,254 
Due after one year through five years7,860 7,894 
Due after five years through ten years43,218 38,926 
Due after ten years531,584 430,790 
MBS/CMO812,528 725,072 
US Gov’t Sponsored Entities & Agencies256,808 228,058 
Total$1,769,174 $1,547,994 

During June 2024, the Company commenced a securities portfolio restructuring transaction whereby available-for-sale securities totaling $375,321 in book value were identified to be sold. As of June 30, 2024, $175,061 of securities had been sold with the remaining $200,259 sold during early July 2024. It was management’s intent that these securities be sold as of June 30, 2024; therefore, the securities’ amortized cost basis was reduced to fair value through income as of June 30, 2024. Approximately $80,000 of the proceeds of the securities sold were reinvested as of June 30, 2024 with the remainder reinvested during the third quarter of 2024.
Schedule of Proceeds from the Sales of Securities
Proceeds from the sales of securities are summarized below:
 Three Months EndedThree Months Ended
September 30, 2024September 30, 2023
Proceeds from Sales$175,738 $— 
Gross Gains on Sales70 — 
Gross Losses on Sales— — 
Income Taxes on Net Gains (Losses)15 — 
 Nine Months EndedNine Months Ended
 September 30, 2024September 30, 2023
Proceeds from Sales$402,105 $114,259 
Gross Gains on Sales614 346 
Gross Losses on Sales35,402 306 
Income Taxes on Net Gains (Losses)(7,305)8 
Schedule of Securities with Unrealized Losses
Below is a summary of securities with unrealized losses as of September 30, 2024 and December 31, 2023, presented by length of time the securities have been in a continuous unrealized loss position:
 Less than 12 Months12 Months or MoreTotal
September 30, 2024Fair
Value		Unrealized
Loss		Fair
Value		Unrealized
Loss		Fair
Value		Unrealized
Loss
Obligations of State and Political Subdivisions$4,461 $(17)$465,384 $(105,078)$469,845 $(105,095)
MBS/CMO42,139 (97)491,567 (92,945)533,706 (93,042)
US Gov’t Sponsored Entities & Agencies— — 176,382 (29,676)176,382 (29,676)
Total$46,600 $(114)$1,133,333 $(227,699)$1,179,933 $(227,813)

 Less than 12 Months12 Months or MoreTotal
December 31, 2023Fair
Value		Unrealized
Loss		Fair
Value		Unrealized
Loss		Fair
Value		Unrealized
Loss
Obligations of State and Political Subdivisions$13,469 $(175)$668,223 $(122,199)$681,692 $(122,374)
MBS/CMO135 (1)643,172 (116,012)643,307 (116,013)
US Gov’t Sponsored Entities & Agencies— — 182,917 (37,378)182,917 (37,378)
Total$13,604 $(176)$1,494,312 $(275,589)$1,507,916 $(275,765)