v3.26.1
INVESTMENT SECURITIES (Tables)
6 Months Ended
Jun. 30, 2026
Investments, Debt and Equity Securities [Abstract]  
Schedule of Amortized Cost and Estimated Fair Value of Debt Securities Available for Sale
The amortized cost and estimated fair value of securities available-for-sale along with allowance for credit losses, gross unrealized gains and losses are summarized as follows:

(dollars in thousands)
Securities available-for-sale
Amortized
Cost
Allowance for Credit LossesGross
Unrealized
Gains
Gross
Unrealized
Losses
Estimated
Fair
Value
June 30, 2026
U.S. Treasuries$584,558 $— $1,298 $(2,409)$583,447 
State, county and municipal securities18,005 — (547)17,463 
Corporate debt securities2,894 (68)— (374)2,452 
SBA pool securities11,146 — — (627)10,519 
Mortgage-backed securities1,862,905 — 9,203 (25,366)1,846,742 
Total debt securities available-for-sale$2,479,508 $(68)$10,506 $(29,323)$2,460,623 
December 31, 2025
U.S. Treasuries$653,888 $— $7,578 $(841)$660,625 
State, county and municipal securities19,493 — (438)19,061 
Corporate debt securities6,395 (75)(454)5,875 
SBA pool securities12,795 — — (587)12,208 
Mortgage-backed securities1,500,644 — 22,594 (13,834)1,509,404 
Total debt securities available-for-sale$2,193,215 $(75)$30,187 $(16,154)$2,207,173 
The following table is a summary of sales activities in the Company's debt securities available for sale for the three and six months ended June 30, 2026 and 2025:

Three Months Ended June 30,Six Months Ended June 30,
(dollars in thousands)2026202520262025
Gross gains on sales of securities available for sale$246 $— $246 $— 
Gross losses on sales of securities available for sale(184)— (184)— 
Net realized gains on sales of securities available for sale$62 $— $62 $— 
Sales proceeds$86,167 $— $86,167 $— 
Schedule of Amortized Cost and Estimated Fair Value of Debt Securities Held-to-Maturity
The amortized cost and estimated fair value of securities held-to-maturity along with gross unrealized gains and losses are summarized as follows:

(dollars in thousands)
Securities held-to-maturity
Amortized
Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Estimated
Fair
Value
June 30, 2026
State, county and municipal securities$33,284 $— $(4,766)$28,518 
Mortgage-backed securities174,871 195 (10,591)164,475 
Total debt securities held-to-maturity$208,155 $195 $(15,357)$192,993 
December 31, 2025
State, county and municipal securities$33,414 $$(4,145)$29,273 
Mortgage-backed securities169,828 534 (9,762)160,600 
Total debt securities held-to-maturity$203,242 $538 $(13,907)$189,873 
Schedule of Amortized Cost and Estimated Fair Value of Debt Securities, Classified by Contractual Maturity Date
The amortized cost and estimated fair value of debt securities available-for-sale and held-to-maturity as of June 30, 2026, by contractual maturity are shown below. Maturities may differ from contractual maturities in mortgage-backed securities because the mortgages underlying these securities may be called or repaid without penalty. Therefore, these securities are not included in the maturity categories in the following maturity summary:

Available-for-SaleHeld-to-Maturity
(dollars in thousands)
Amortized
Cost
Estimated Fair ValueAmortized
Cost
Estimated Fair Value
Due in one year or less$176,703 $176,742 $— $— 
Due from one year to five years371,339 369,777 — — 
Due from five to ten years65,631 64,888 1,272 1,266 
Due after ten years2,930 2,474 32,012 27,252 
Mortgage-backed securities1,862,905 1,846,742 174,871 164,475 
$2,479,508 $2,460,623 $208,155 $192,993 
Schedule of Available-for-Sale Securities with Unrealized Losses
The following table shows the gross unrealized losses and estimated fair value of available-for-sale securities aggregated by category and length of time that securities have been in a continuous unrealized loss position at June 30, 2026 and December 31, 2025:

Less Than 12 Months12 Months or MoreTotal
(dollars in thousands)
Securities available-for-sale
Estimated
Fair
Value
Unrealized
Losses
Estimated
Fair
Value
Unrealized
Losses
Estimated
Fair
Value
Unrealized
Losses
June 30, 2026
U.S. Treasuries$203,254 $(2,409)$— $— $203,254 $(2,409)
State, county and municipal securities1,994 (12)10,926 (535)12,920 (547)
Corporate debt securities2,057 (374)— — 2,057 (374)
SBA pool securities— — 10,392 (627)10,392 (627)
Mortgage-backed securities576,485 (12,005)359,603 (13,361)936,088 (25,366)
Total debt securities available-for-sale$783,790 $(14,800)$380,921 $(14,523)$1,164,711 $(29,323)
December 31, 2025
U.S. Treasuries$— $— $56,606 $(841)$56,606 $(841)
State, county and municipal securities— — 12,803 (438)12,803 (438)
Corporate debt securities1,050 (375)2,421 (79)3,471 (454)
SBA pool securities— — 12,076 (587)12,076 (587)
Mortgage-backed securities100,144 (3,061)390,234 (10,773)490,378 (13,834)
Total debt securities available-for-sale$101,194 $(3,436)$474,140 $(12,718)$575,334 $(16,154)
Schedule of Held-to-Maturity Securities with Unrealized Losses
The following table shows the gross unrealized losses and estimated fair value of held-to-maturity securities aggregated by category and length of time that securities have been in a continuous unrealized loss position at June 30, 2026 and December 31, 2025:

Less Than 12 Months12 Months or MoreTotal
(dollars in thousands)
Securities held-to-maturity
Estimated
Fair
Value
Unrealized
Losses
Estimated
Fair
Value
Unrealized
Losses
Estimated
Fair
Value
Unrealized
Losses
June 30, 2026
State, county and municipal securities$9,484 $(81)$19,034 $(4,685)$28,518 $(4,766)
Mortgage-backed securities60,288 (777)77,210 (9,814)137,498 (10,591)
Total debt securities held-to-maturity$69,772 $(858)$96,244 $(14,499)$166,016 $(15,357)
December 31, 2025
State, county and municipal securities$— $— $27,990 $(4,145)$27,990 $(4,145)
Mortgage-backed securities19,344 (152)83,035 (9,610)102,379 (9,762)
Total debt securities held-to-maturity$19,344 $(152)$111,025 $(13,755)$130,369 $(13,907)
Schedule of Investments Available-for-sale, Allowance for Credit Loss The remaining $29.3 million in unrealized loss was determined to be from factors other than credit.
(dollars in thousands)Three Months Ended June 30,Six Months Ended June 30,
Allowance for credit losses
2026202520262025
Beginning balance$69 $69 $75 $69 
Provision for other credit losses(1)(3)(7)(3)
Ending balance$68 $66 $68 $66 
Schedule of Debt Securities Available for Sale
The amortized cost and estimated fair value of securities available-for-sale along with allowance for credit losses, gross unrealized gains and losses are summarized as follows:

(dollars in thousands)
Securities available-for-sale
Amortized
Cost
Allowance for Credit LossesGross
Unrealized
Gains
Gross
Unrealized
Losses
Estimated
Fair
Value
June 30, 2026
U.S. Treasuries$584,558 $— $1,298 $(2,409)$583,447 
State, county and municipal securities18,005 — (547)17,463 
Corporate debt securities2,894 (68)— (374)2,452 
SBA pool securities11,146 — — (627)10,519 
Mortgage-backed securities1,862,905 — 9,203 (25,366)1,846,742 
Total debt securities available-for-sale$2,479,508 $(68)$10,506 $(29,323)$2,460,623 
December 31, 2025
U.S. Treasuries$653,888 $— $7,578 $(841)$660,625 
State, county and municipal securities19,493 — (438)19,061 
Corporate debt securities6,395 (75)(454)5,875 
SBA pool securities12,795 — — (587)12,208 
Mortgage-backed securities1,500,644 — 22,594 (13,834)1,509,404 
Total debt securities available-for-sale$2,193,215 $(75)$30,187 $(16,154)$2,207,173 
The following table is a summary of sales activities in the Company's debt securities available for sale for the three and six months ended June 30, 2026 and 2025:

Three Months Ended June 30,Six Months Ended June 30,
(dollars in thousands)2026202520262025
Gross gains on sales of securities available for sale$246 $— $246 $— 
Gross losses on sales of securities available for sale(184)— (184)— 
Net realized gains on sales of securities available for sale$62 $— $62 $— 
Sales proceeds$86,167 $— $86,167 $— 
Schedule of Gain (Loss) on Investments
Total net gain on securities reported on the consolidated statements of income and comprehensive income is comprised of the following for the three and six months ended June 30, 2026 and 2025:

Three Months Ended June 30,Six Months Ended June 30,
(dollars in thousands)2026202520262025
Net realized gains on sales of securities available-for-sale$62 $— $62 $— 
Net realized gains on equity securities2,367 — 2,367 — 
Unrealized holding gains on equity securities4,921 — 4,921 40 
Net realized gains on sales of other investments42 — 42 — 
Net gain on securities$7,392 $— $7,392 $40