CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Interest and dividends on securities
Taxable	$ 151,280	$ 99,456	$ 82,926
Nontaxable	3,404	135	354
Interest and fees on loans	657,036	597,366	581,105
Interest on interest-bearing deposits and other investments	24,654	28,602	24,590
Total Interest Income	836,374	725,559	688,975
Interest Expense
Interest on deposits	177,380	198,210	126,535
Interest on time certificates	67,348	70,777	52,254
Interest on securities sold under agreement to repurchase	6,209	9,390	8,323
Interest on FHLB borrowings	25,295	7,726	6,378
Interest on long-term debt	6,666	7,485	7,245
Total Interest Expense	282,898	293,588	200,735
Net Interest Income	553,476	431,971	488,240
Provision for credit losses	51,260	16,258	37,518
Net Interest Income After Provision for Credit Losses	502,216	415,713	450,722
Noninterest income:
Service charges on deposit accounts	23,386	20,852	18,278
Wealth management income	18,562	15,168	12,780
Mortgage banking income	4,714	1,774	1,790
Interchange income	8,193	7,599	13,877
Insurance agency income	5,581	5,196	4,510
BOLI income	12,410	10,065	8,401
Other	26,826	30,790	22,409
Total Noninterest Income Before Securities (Losses) Gains, Net	99,672	91,444	82,045
Securities losses, net (includes net losses of $0.9 million for 2025, $12.0 million for 2024 and $2.9 million for 2023 in other comprehensive income reclassifications)	(522)	(8,016)	(2,893)
Total Noninterest Income	99,150	83,428	79,152
Noninterest expense:
Salaries and wages	186,938	162,316	171,824
Employee benefits	32,844	28,253	29,918
Outsourced data processing costs	37,623	36,638	34,643
Occupancy	31,790	29,547	31,872
Furniture and equipment	9,421	8,031	8,692
Marketing	11,364	10,776	9,156
Legal and professional fees	8,591	9,648	11,061
FDIC assessments	9,592	8,445	8,630
Amortization of intangibles	26,819	23,884	28,726
OREO expense and net (gain) loss on sale	(126)	440	985
Provision for credit losses on unfunded commitments	1,262	1,001	1,239
Merger and integration costs	32,423	0	33,180
Other	26,319	24,322	25,696
Total Noninterest Expense	414,860	343,301	395,622
Income Before Income Taxes	186,506	155,840	134,252
Provision for income tax expense	41,628	34,854	30,219
Net Income	144,878	120,986	104,033
Preferred dividends	2,138	0	0
Net income available to common shareholders	$ 142,740	$ 120,986	$ 104,033
Net income per share of common stock
Diluted (in dollars per share)	$ 1.57	$ 1.42	$ 1.23
Basic (in dollars per share)	$ 1.59	$ 1.43	$ 1.24
Average common shares outstanding
Diluted (in shares)	89,106	85,040	84,329
Basic (in shares)	88,276	84,367	83,800