v3.26.1
Securities - Schedule of Expected Maturity for Debt Securities, Available-for-Sale (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Amortized Cost    
One Year or Less $ 17,786  
One to Five Years 689,897  
Five to Ten Years 929,323  
After Ten Years 275,509  
Amortized Cost 1,912,515 $ 1,687,817
Fair Value    
One Year or Less 17,689  
One to Five Years 663,755  
Five to Ten Years 891,893  
After Ten Years 252,700  
Fair Value 1,826,037 1,615,954
U.S. Treasuries and government agencies    
Amortized Cost    
One Year or Less 0  
One to Five Years 158,733  
Five to Ten Years 0  
After Ten Years 0  
Amortized Cost 158,733 159,088
Fair Value    
One Year or Less 0  
One to Five Years 149,463  
Five to Ten Years 0  
After Ten Years 0  
Fair Value 149,463 150,124
Obligations of states and municipalities    
Amortized Cost    
One Year or Less 6,000  
One to Five Years 273,806  
Five to Ten Years 543,525  
After Ten Years 230,827  
Amortized Cost 1,054,158 977,104
Fair Value    
One Year or Less 5,982  
One to Five Years 261,801  
Five to Ten Years 514,455  
After Ten Years 208,031  
Fair Value 990,269 922,574
Residential mortgage backed - agency    
Amortized Cost    
One Year or Less 0  
One to Five Years 25,872  
Five to Ten Years 26,284  
After Ten Years 7,852  
Amortized Cost 60,008 57,731
Fair Value    
One Year or Less 0  
One to Five Years 25,920  
Five to Ten Years 23,350  
After Ten Years 8,105  
Fair Value 57,375 55,385
Residential mortgage backed - non-agency    
Amortized Cost    
One Year or Less 2,014  
One to Five Years 82,568  
Five to Ten Years 267,098  
After Ten Years 27,721  
Amortized Cost 379,401 221,443
Fair Value    
One Year or Less 2,000  
One to Five Years 80,279  
Five to Ten Years 262,595  
After Ten Years 27,612  
Fair Value 372,486 218,092
Commercial mortgage backed - agency    
Amortized Cost    
One Year or Less 0  
One to Five Years 46,711  
Five to Ten Years 25,754  
After Ten Years 0  
Amortized Cost 72,465 74,253
Fair Value    
One Year or Less 0  
One to Five Years 46,197  
Five to Ten Years 25,487  
After Ten Years 0  
Fair Value 71,684 73,896
Commercial mortgage backed - non-agency    
Amortized Cost    
One Year or Less 7,162  
One to Five Years 66,128  
Five to Ten Years 26,774  
After Ten Years 0  
Amortized Cost 100,064 112,082
Fair Value    
One Year or Less 7,108  
One to Five Years 64,213  
Five to Ten Years 27,056  
After Ten Years 0  
Fair Value 98,377 111,109
Asset-backed    
Amortized Cost    
One Year or Less 2,610  
One to Five Years 33,268  
Five to Ten Years 14,854  
After Ten Years 0  
Amortized Cost 50,732 53,954
Fair Value    
One Year or Less 2,599  
One to Five Years 32,994  
Five to Ten Years 14,707  
After Ten Years 0  
Fair Value 50,300 53,466
Other    
Amortized Cost    
One Year or Less 0  
One to Five Years 2,811  
Five to Ten Years 25,034  
After Ten Years 9,109  
Amortized Cost 36,954 32,162
Fair Value    
One Year or Less 0  
One to Five Years 2,888  
Five to Ten Years 24,243  
After Ten Years 8,952  
Fair Value $ 36,083 $ 31,308