FAIR VALUES OF FINANCIAL INSTRUMENTS (Tables)

12 Months Ended

Dec. 31, 2023

Fair Value Disclosures [Abstract]

Schedule of Fair Value Measurements of Assets and Liabilities Recognized in the Balance Sheets Measured at Fair Value on Recurring Basis

The following table presents the fair value measurements of assets and liabilities recognized in the accompanying balance sheets measured at fair value on a recurring basis and the level within the fair value hierarchy in which the fair value measurements fall at December 31, 2023 and 2022.

			Fair Value Measurements Using:
			Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
December 31, 2023	Fair Value		(Level 1)		(Level 2)		(Level 3)
Available for sale securities:
U.S. Government-sponsored agency securities	$	95,307	$	—	$	95,307	$	—
State and municipal	1,065,171		—		1,061,896		3,275
U.S. Government-sponsored mortgage-backed securities	454,815		—		454,811		4
Corporate obligations	11,819		—		11,788		31
Derivative assets	79,379		—		79,379		—
Derivative liabilities	79,008		—		79,008		—

			Fair Value Measurements Using:
			Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
December 31, 2022	Fair Value		(Level 1)		(Level 2)		(Level 3)
Available for sale securities:
U.S. Government-sponsored agency securities	$	101,962	$	—	$	101,962	$	—
U.S. Treasury	2,459		2,459		—		—
State and municipal	1,351,760		—		1,348,356		3,404
U.S. Government-sponsored mortgage-backed securities	508,273		—		508,269		4
Corporate obligations	12,207		—		12,176		31
Derivative assets	93,036		—		93,036		—
Derivative liabilities	92,770		—		92,770		—

Schedule of Reconciliation of Beginning and Ending Balances of Recurring Fair Value Measurements Recognized in the Balance Sheets using Significant Unobservable Level 3 Inputs

The following is a reconciliation of the beginning and ending balances of recurring fair value measurements recognized in the accompanying balance sheets using significant unobservable Level 3 inputs for year ended December 31, 2023 and 2022.

	Available for Sale Securities
	For The Year Ended
	December 31, 2023		December 31, 2022
Beginning Balance	$	3,439	$	5,491
Included in other comprehensive income (loss)	(186)		(612)
Purchases, issuances, and settlements	—		5,111
Principal payments	57		(6,551)
Ending balance	$	3,310	$	3,439

Schedule of Description of Valuation Methodologies Used for Instruments Measured at Fair Value on a Non-Recurring Basis and Recognized in the Balance Sheets

The following tables disclose the fair value measurement of assets with a recorded change during the period resulting from re-measuring the assets at fair value on a non-recurring basis:

			Fair Value Measurements Using
			Quoted Prices in Active Markets for Identical Assets	Significant Other Observable Inputs	Significant Unobservable Inputs
December 31, 2023	Fair Value		(Level 1)	(Level 2)	(Level 3)
Collateral dependent loans	$	55,020	—	—	$	55,020

			Fair Value Measurements Using
			Quoted Prices in Active Markets for Identical Assets	Significant Other Observable Inputs	Significant Unobservable Inputs
December 31, 2022	Fair Value		(Level 1)	(Level 2)	(Level 3)
Collateral dependent loans	$	55,290	—	—	$	55,290

Schedule of Unobservable Inputs Used in Recurring and Nonrecurring Level 3 Fair Value Measurements Other than Goodwill

The following tables present quantitative information about unobservable inputs used in recurring and nonrecurring Level 3 fair value measurements, other than goodwill, at December 31, 2023 and 2022.

December 31, 2023	Fair Value		Valuation Technique	Unobservable Inputs	Range (Weighted-Average)
State and municipal securities	$	3,275	Discounted cash flow	Maturity Call Date US Muni BQ curve Discount rate Weighted-average coupon	1 month to 15 years BBB 3.6% - 4.7% 3.3%
Corporate obligations and U.S. Government-sponsored mortgage backed securities	$	35	Discounted cash flow	Risk free rate plus Premium for illiquidity Weighted-average coupon	3 month CME Term Sofr plus 26bps plus 200bps 0%
Collateral dependent loans	$	55,020	Collateral based measurements	Discount to reflect current market conditions and ultimate collectability Weighted-average discount by loan balance	0% - 10% 4.1%

December 31, 2022	Fair Value		Valuation Technique	Unobservable Inputs	Range (Weighted-Average)
State and municipal securities	$	3,404	Discounted cash flow	Maturity Call Date US Muni BQ curve Discount rate Weighted-average coupon	1 month to 15 years A- to BBB- 0.4% - 4% 3.4%
Corporate obligations and U.S. Government-sponsored mortgage backed securities	$	35	Discounted cash flow	Risk free rate plus Premium for illiquidity Weighted-average coupon	3 month LIBOR plus 200bps 0%
Collateral dependent loans	$	55,290	Collateral based measurements	Discount to reflect current market conditions and ultimate collectability Weighted-average discount by loan balance	0% - 10% 1.1%

Schedule of Estimated Fair Values of Financial Instruments

The following table presents estimated fair values of the Corporation’s financial instruments and the level within the fair value hierarchy in which the fair value measurements fall at December 31, 2023 and 2022.

	2023
	Carrying Amount		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value
Assets at December 31:
Cash and due from banks	$	112,649	$	112,649	$	—	$	—	$	112,649
Interest-bearing deposits	436,080		436,080		—		—		436,080
Investment securities available for sale	1,627,112		—		1,623,802		3,310		1,627,112
Investment securities held to maturity	2,184,252		—		1,859,974		10,400		1,870,374
Loans held for sale	18,934		—		18,934		—		18,934
Loans	12,281,093		—		—		11,958,301		11,958,301
Federal Home Loan Bank stock	41,769		—		41,769		—		41,769
Derivative assets	79,379		—		79,379		—		79,379
Interest receivable	97,664		—		97,664		—		97,664
Liabilities at December 31:
Deposits	14,821,453		$	12,482,295	$	2,329,662	$	—	14,811,957
Borrowings:
Securities sold under repurchase agreements	157,280		—		157,265		—		157,265
Federal Home Loan Bank advances	712,852		—		707,377		—		707,377
Subordinated debentures and other borrowings	158,644		—		149,995		—		149,995
Derivative liabilities	79,008		—		79,008		—		79,008
Interest payable	18,912		—		18,912		—		18,912

	2022
	Carrying Amount		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value
Assets at December 31:
Cash and due from banks	$	122,594	$	122,594	$	—	$	—	$	122,594
Interest-bearing deposits	126,061		126,061		—		—		126,061
Investment securities available for sale	1,976,661		2,459		1,970,763		3,439		1,976,661
Investment securities held to maturity	2,287,127		—		1,893,271		14,594		1,907,865
Loans held for sale	9,094		—		9,094		—		9,094
Loans	11,780,617		—		—		11,156,217		11,156,217
Federal Home Loan Bank stock	38,525		—		38,525		—		38,525
Interest rate swap asset	93,036		—		93,036		—		93,036
Interest receivable	85,070		—		85,070		—		85,070
Liabilities at December 31:
Deposits	$	14,382,745	$	13,105,936	$	1,251,017	$	—	14,356,953
Borrowings:
Federal funds purchased	171,560		—		171,560		—		171,560
Securities sold under repurchase agreements	167,413		—		167,396		—		167,396
Federal Home Loan Bank advances	823,674		—		615,211		—		615,211
Subordinated debentures and other borrowings	151,298		—		122,102		—		122,102
Derivative liabilities	92,770		—		92,770		—		92,770
Interest payable	7,530		—		7,530		—		7,530