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Available for Sale Debt Securities (Tables)
 12 Months Ended
Dec. 31, 2024
Investments, Debt and Equity Securities [Abstract]  
Schedule of Debt Securities Available for Sale
The following tables present the amortized cost, gross unrealized gains, gross unrealized losses and the fair value for available for sale debt securities as of December 31, 2024 and 2023 (in thousands):
 2024
 
Amortized
cost
Gross
unrealized
gains
Gross
unrealized
losses
Fair
value
U.S. Treasury obligations$348,621 317 (18,340)330,598 
Government-agency obligations105,965 1,461 (191)107,235 
Mortgage-backed securities2,243,725 4,982 (186,548)2,062,159 
Asset-backed securities 47,203 645 (285)47,563 
State and municipal obligations126,766 243 (10,092)116,917 
Corporate obligations103,415 3,958 (2,930)104,443 
$2,975,695 11,606 (218,386)2,768,915 
 2023
 
Amortized
cost
Gross
unrealized
gains
Gross
unrealized
losses
Fair
value
U.S. Treasury obligations$276,618 — (22,740)253,878 
Government-agency obligations26,310 1,188 — 27,498 
Mortgage-backed securities1,462,159 377 (176,927)1,285,609 
Asset-backed securities31,809 594 (168)32,235 
State and municipal obligations64,454 — (7,870)56,584 
Corporate obligations40,448 — (6,140)34,308 
$1,901,798 2,159 (213,845)1,690,112 
Schedule of Investments Classified by Contractual Maturity Date
The amortized cost and fair value of held to maturity debt securities as of December 31, 2024 by contractual maturity, excluding allowances for credit losses of $14,000, as of December 31, 2024 are shown below (in thousands). Expected maturities may differ from contractual maturities due to prepayment or early call privileges of the issuer.
 2024
 
Amortized
cost
Fair
value
Due in one year or less$44,861 44,506 
Due after one year through five years168,560 165,304 
Due after five years through ten years96,148 89,996 
Due after ten years18,068 13,927 
$327,637 313,733 
The amortized cost and fair value of available for sale debt securities as of December 31, 2024, by contractual maturity, are shown below (in thousands). Expected maturities may differ from contractual maturities due to prepayment or early call privileges of the issuer.
 2024
 
Amortized
cost
Fair
value
Due in one year or less$141,817 141,426 
Due after one year through five years308,423 290,212 
Due after five years through ten years116,395 114,993 
Due after ten years71,796 65,051 
$638,431 611,682