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SECURITIES
6 Months Ended
Jun. 30, 2025
Investments, Debt and Equity Securities [Abstract]  
SECURITIES
The amortized cost, gross unrealized gains and losses and estimated fair value of securities at June 30, 2025 and December 31, 2024 are summarized as follows (in thousands):
 June 30, 2025
 Amortized CostGross Unrealized GainsGross Unrealized LossesFair Value
Available-for-Sale:
U.S. Government and agency obligations$7,617 $— $(385)$7,232 
Municipal bonds159,405 114 (33,318)126,201 
Corporate bonds113,842 2,306 (5,201)110,947 
Mortgage-backed or related securities1,927,971 1,775 (273,220)1,656,526 
Asset-backed securities163,496 180 (1)163,675 
 $2,372,331 $4,375 $(312,125)$2,064,581 
 June 30, 2025
 Amortized CostGross Unrealized GainsGross Unrealized LossesFair ValueAllowance for Credit Losses
Held-to-Maturity:
U.S. Government and agency obligations$300 $— $(3)$297 $— 
Municipal bonds435,022 (77,279)357,592 (155)
Corporate bonds2,602 — (2)2,453 (147)
Mortgage-backed or related securities543,690 — (102,194)441,496 — 
$981,614 $$(179,478)$801,838 $(302)
December 31, 2024
Amortized CostGross Unrealized GainsGross Unrealized LossesFair Value
Available-for-Sale:
U.S. Government and agency obligations$8,492 $— $(559)$7,933 
Municipal bonds153,982 453 (30,453)123,982 
Corporate bonds131,379 100 (6,489)124,990 
Mortgage-backed or related securities1,995,805 383 (319,340)1,676,848 
Asset-backed securities170,604 155 (1)170,758 
$2,460,262 $1,091 $(356,842)$2,104,511 

December 31, 2024
Amortized CostGross Unrealized GainsGross Unrealized LossesFair ValueAllowance for Credit Losses
Held-to-Maturity:
U.S. Government and agency obligations$302 $— $(4)$298 $— 
Municipal bonds438,196 36 (62,809)375,280 (143)
Corporate bonds2,658 — (6)2,498 (154)
Mortgage-backed or related securities560,705 — (113,253)447,452 — 
$1,001,861 $36 $(176,072)$825,528 $(297)

Accrued interest receivable on held-to-maturity debt securities was $4.1 million and $4.2 million at June 30, 2025 and December 31, 2024, and was $8.5 million and $9.0 million on available-for-sale debt securities at June 30, 2025 and December 31, 2024, respectively. Accrued interest receivable on securities is reported in accrued interest receivable on the Consolidated Statements of Financial Condition and is excluded from the calculation of the allowance for credit losses.

At June 30, 2025 and December 31, 2024, the gross unrealized losses and the fair value for securities available-for-sale aggregated by the length of time that individual securities have been in a continuous unrealized loss position were as follows (in thousands):
June 30, 2025
Less Than 12 Months12 Months or MoreTotal
Fair ValueUnrealized LossesFair ValueUnrealized LossesFair ValueUnrealized Losses
Available-for-Sale:
U.S. Government and agency obligations
$— $— $7,232 $(385)$7,232 $(385)
Municipal bonds
30,708 (951)88,814 (32,367)119,522 (33,318)
Corporate bonds
— — 78,902 (5,201)78,902 (5,201)
Mortgage-backed or related securities
999 (12)1,526,005 (273,208)1,527,004 (273,220)
Asset-backed securities
20,000 (1)— — 20,000 (1)
$51,707 $(964)$1,700,953 $(311,161)$1,752,660 $(312,125)
December 31, 2024
Less Than 12 Months12 Months or MoreTotal
Fair Value Unrealized LossesFair ValueUnrealized LossesFair ValueUnrealized Losses
Available-for-Sale:
U.S. Government and agency obligations
$— $— $7,933 $(559)$7,933 $(559)
Municipal bonds
15,497 (287)91,156 (30,166)106,653 (30,453)
Corporate bonds
2,541 (59)96,763 (6,430)99,304 (6,489)
Mortgage-backed or related securities
44,749 (524)1,552,613 (318,816)1,597,362 (319,340)
Asset-backed securities
20,000 (1)— — 20,000 (1)
$82,787 $(871)$1,748,465 $(355,971)$1,831,252 $(356,842)

At June 30, 2025, there were 198 securities—available-for-sale with unrealized losses, compared to 201 at December 31, 2024. Management does not believe that any remaining individual unrealized loss as of June 30, 2025 or December 31, 2024 resulted from credit loss.  The decline in fair market value of these securities was generally due to changes in interest rates and changes in market-desired spreads subsequent to their purchase. There were no securities—available-for-sale in a nonaccrual status at June 30, 2025 or December 31, 2024.

There were no securities—available-for-sale sold during the three and six months ended June 30, 2025. The following table presents gross gains and losses on sales and partial calls of securities available-for-sale (in thousands):
 Three months ended June 30,Six Months Ended June 30,
 2025202420252024
Available-for-Sale:
Gross Gains$— $— $— $36 
Gross Losses(3)(562)(3)(5,501)
Balance, end of the period$(3)$(562)$(3)$(5,465)

The following table presents the amortized cost and estimated fair value of securities at June 30, 2025, by contractual maturity and does not reflect any required periodic payments (in thousands). Expected maturities will differ from contractual maturities because some securities may be called or prepaid with or without call or prepayment penalties.
 June 30, 2025
Available-for-SaleHeld-to-Maturity
 Amortized CostFair ValueAmortized CostFair Value
Maturing within one year$38,715 $38,380 $8,522 $8,332 
Maturing after one year through five years112,095 107,181 13,032 12,794 
Maturing after five years through ten years412,357 384,609 31,430 29,258 
Maturing after ten years1,809,164 1,534,411 928,630 751,454 
 $2,372,331 $2,064,581 $981,614 $801,838 

The following table presents, as of June 30, 2025, investment securities which were pledged to secure borrowings, public deposits or other obligations as permitted or required by law (in thousands):
June 30, 2025
Carrying ValueAmortized CostFair Value
Purpose or beneficiary:
State and local governments public deposits$293,108 $309,141 $254,409 
Interest rate swap counterparties953 953 797 
Repurchase transaction accounts209,486 209,486 168,825 
Other 2,464 2,464 2,188 
Total pledged securities$506,011 $522,044 $426,219 
The Company monitors the credit quality of held-to-maturity debt securities through the use of credit ratings which are reviewed and updated quarterly. The Company’s non-rated held-to-maturity debt securities are primarily United States government sponsored enterprise debentures carrying minimal to no credit risk. The non-rated corporate bonds primarily consist of Community Reinvestment Act related bonds secured by loan instruments from low to moderate income borrowers. The remaining non-rated held-to-maturity debt securities balance is comprised of local municipal debt from within the Company’s geographic footprint and is monitored through quarterly or annual financial review. This municipal debt is predominately essential service or unlimited general obligation backed debt. The following tables summarize the amortized cost of held-to-maturity debt securities by credit rating at June 30, 2025 and December 31, 2024 (in thousands):
June 30, 2025
U.S. Government and agency obligationsMunicipal bondsCorporate bondsMortgage-backed or related securitiesTotal
AAA/AA/A$— $426,018 $500 $16,095 $442,613 
Not Rated300 9,004 2,102 527,595 539,001 
$300 $435,022 $2,602 $543,690 $981,614 

December 31, 2024
U.S. Government and agency obligationsMunicipal bondsCorporate bondsMortgage-backed or related securitiesTotal
AAA/AA/A$— $430,158 $500 $16,218 $446,876 
Not Rated302 8,038 2,158 544,487 554,985 
$302 $438,196 $2,658 $560,705 $1,001,861