Securities - Unrealized Loss on Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
AVAILABLE FOR SALE
Less than 12 Months, fair value	$ 601,445	$ 55,764
Less than 12 Months, unrealized loss	5,042	74
More than 12 Months, fair value	144,825	143,986
More than 12 Months, unrealized Loss	15,688	17,788
Total fair value	746,270	199,750
Total unrealized loss	20,730	17,862
HELD TO MATURITY
Less than 12 months, fair value	504	20,224
Less than 12 months, unrealized loss	12	3,128
More than 12 months, fair value	912,163	933,774
More than 12 months, unrealized loss	142,021	144,064
Total fair value	912,667	953,998
Total unrealized loss	142,033	147,192
State and political subdivisions
AVAILABLE FOR SALE
Less than 12 Months, fair value	0	0
Less than 12 Months, unrealized loss	0	0
More than 12 Months, fair value	130,420	128,723
More than 12 Months, unrealized Loss	14,826	17,055
Total fair value	130,420	128,723
Total unrealized loss	14,826	17,055
HELD TO MATURITY
Less than 12 months, fair value	504	20,224
Less than 12 months, unrealized loss	12	3,128
More than 12 months, fair value	779,872	770,244
More than 12 months, unrealized loss	134,442	136,591
Total fair value	780,376	790,468
Total unrealized loss	134,454	139,719
Corporate bonds and other
AVAILABLE FOR SALE
Less than 12 Months, fair value	714	3,708
Less than 12 Months, unrealized loss	36	42
More than 12 Months, fair value	4,873	4,943
More than 12 Months, unrealized Loss	127	57
Total fair value	5,587	8,651
Total unrealized loss	163	99
HELD TO MATURITY
Less than 12 months, fair value	0	0
Less than 12 months, unrealized loss	0	0
More than 12 months, fair value	57,539	64,009
More than 12 months, unrealized loss	1,179	1,487
Total fair value	57,539	64,009
Total unrealized loss	1,179	1,487
Residential
AVAILABLE FOR SALE
Less than 12 Months, fair value	600,731	52,056
Less than 12 Months, unrealized loss	5,006	32
More than 12 Months, fair value	9,532	10,320
More than 12 Months, unrealized Loss	735	676
Total fair value	610,263	62,376
Total unrealized loss	5,741	708
HELD TO MATURITY
Less than 12 months, fair value	0	0
Less than 12 months, unrealized loss	0	0
More than 12 months, fair value	66,945	71,782
More than 12 months, unrealized loss	5,464	4,898
Total fair value	66,945	71,782
Total unrealized loss	5,464	4,898
Commercial
HELD TO MATURITY
Less than 12 months, fair value	0	0
Less than 12 months, unrealized loss	0	0
More than 12 months, fair value	7,807	27,739
More than 12 months, unrealized loss	936	1,088
Total fair value	7,807	27,739
Total unrealized loss	$ 936	$ 1,088

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