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Borrowing Arrangements
 3 Months Ended
Mar. 31, 2025
Debt Disclosure [Abstract]  
Borrowing Arrangements Borrowing Arrangements
Information related to borrowings is provided in the table below (dollars in thousands):
March 31, 2025December 31, 2024
Other borrowings:  
Balance at end of period$79,698 $76,443 
Average amount outstanding during the period (1)
108,352 205,743 
Maximum amount outstanding during the period (2)
259,317 597,765 
Weighted average interest rate during the period (3)
5.3 %5.7 %
   Interest rate at end of period (4)
3.5 %3.6 %
FHLB borrowings:  
Balance at end of period$611,719 $731,909 
Average amount outstanding during the period (1)
614,897 601,366 
Maximum amount outstanding during the period (2)
651,782 760,046 
Weighted average interest rate during the period (3)
3.9 %4.1 %
Interest rate at end of period (5)
4.0 %3.7 %
(1)The average amount outstanding during the period was computed by dividing the total daily outstanding principal balances by the number of days in the period.
(2)The maximum amount outstanding at any month-end during the period.
(3)The weighted average interest rate during the period was computed by dividing the actual interest expense (annualized for interim periods) by the average amount outstanding during the period. The weighted average interest rate on FHLB borrowings includes the effect of interest rate swaps.
(4)Stated rate.
(5)The interest rate on FHLB borrowings includes the effect of interest rate swaps.

Maturities of the obligations associated with our borrowing arrangements based on scheduled repayments at March 31, 2025 are as follows (in thousands):
Payments Due by Period
 Less than
1 Year		1-2 Years2-3 Years3-4 Years4-5 YearsThereafterTotal
Other borrowings$79,448 $250 $— $— $— $— $79,698 
FHLB borrowings610,775 392 411 141 — — 611,719 
Total obligations$690,223 $642 $411 $141 $— $— $691,417 

Other borrowings may include federal funds purchased, repurchase agreements and borrowings from the Federal Reserve through the FRDW. Southside Bank has three unsecured lines of credit for the purchase of overnight federal funds at prevailing rates with Frost Bank, Amegy Bank and TIB – The Independent Bankers Bank for $40.0 million, $25.0 million and $15.0 million, respectively. There were no federal funds purchased at March 31, 2025 or December 31, 2024.  To provide more liquidity in response to economic conditions in recent years, the Federal Reserve has encouraged broader use of the discount window. At March 31, 2025, the amount of additional funding the Bank could obtain from the FRDW, collateralized by securities, was approximately $425.2 million. There were no borrowings from the FRDW at March 31, 2025 or December 31, 2024. Southside Bank has a $5.0 million line of credit with Frost Bank to be used to issue letters of credit, and at March 31, 2025, the line had one outstanding letter of credit for $155,000. Southside Bank currently has one outstanding letter of credit from FHLB held as collateral for a loan for $6.1 million.
Southside Bank enters into sales of securities under repurchase agreements. These repurchase agreements totaled $79.7 million at March 31, 2025 and $76.4 million at December 31, 2024, and had maturities of less than two years.  Repurchase agreements are secured by investment and MBS and are stated at the amount of cash received in connection with the transaction.
FHLB borrowings represent borrowings with fixed interest rates ranging from 0.56% to 4.81% and with remaining maturities of one day to 3.3 years at March 31, 2025.  FHLB borrowings may be collateralized by FHLB stock, nonspecified loans and/or securities. At March 31, 2025, the amount of additional funding Southside Bank could obtain from FHLB, collateralized by
securities, FHLB stock and nonspecified loans and securities, was approximately $1.79 billion, net of FHLB stock purchases required.