v3.26.1
Investments - Schedule of Amortized Cost, Gross Unrealized Gains and Losses, and Fair Value of Debt Securities Available-for-Sale (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Schedule of Available-for-sale Securities [Line Items]    
Cost or Adjusted / Amortized Cost $ 821,858 $ 726,774
Gross Unrealized Gains 2,524 6,931
Gross Unrealized Losses 22,472 20,468
Fair Value 801,910 713,237
U.S. government and agency securities    
Schedule of Available-for-sale Securities [Line Items]    
Cost or Adjusted / Amortized Cost 130,483 89,380 [1]
Gross Unrealized Gains 247 1,014 [1]
Gross Unrealized Losses 420 210 [1]
Fair Value 130,310 90,184 [1]
States, municipalities and political subdivisions    
Schedule of Available-for-sale Securities [Line Items]    
Cost or Adjusted / Amortized Cost 359,301 347,487
Gross Unrealized Gains 849 2,147
Gross Unrealized Losses 14,593 14,152
Fair Value 345,557 335,482
Corporate bonds    
Schedule of Available-for-sale Securities [Line Items]    
Cost or Adjusted / Amortized Cost 251,733 226,541
Gross Unrealized Gains 1,378 3,431
Gross Unrealized Losses 4,797 4,250
Fair Value 248,314 225,722
Mortgage-backed securities    
Schedule of Available-for-sale Securities [Line Items]    
Cost or Adjusted / Amortized Cost 77,020 59,087
Gross Unrealized Gains 50 339
Gross Unrealized Losses 2,638 1,826
Fair Value 74,432 57,600
Asset-backed securities    
Schedule of Available-for-sale Securities [Line Items]    
Cost or Adjusted / Amortized Cost 991 1,199
Gross Unrealized Gains 0 0
Gross Unrealized Losses 24 30
Fair Value 967 1,169
Other    
Schedule of Available-for-sale Securities [Line Items]    
Cost or Adjusted / Amortized Cost 2,330 3,080
Gross Unrealized Gains 0 0
Gross Unrealized Losses 0 0
Fair Value $ 2,330 $ 3,080
[1] Includes debt securities at December 31, 2025 with a carrying amount of $3.8 million that were pledged as collateral for the advance agreements entered into with a financial institution in 2024. The Company is permitted to withdraw or exchange any portion of the pledged collateral over the minimum requirement at any time.