ALLOWANCE FOR CREDIT LOSSES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	$ 112,707	$ 100,522	$ 109,483	$ 110,088
Charge-offs	(9,613)	(1,473)	(11,764)	(14,690)
Recoveries	275	759	3,466	1,782
Provision (benefit)	7,829	1,545	10,013	4,173
Ending Balance	111,198	101,353	111,198	101,353
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	21,086	16,079	20,196	15,462
Provision (benefit)	(2,450)	1,701	(1,560)	2,318
Ending balance	18,636	17,780	18,636	17,780
Agricultural and Agricultural Real Estate
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	2,546	2,667	2,634	5,213
Charge-offs	(5,309)	(25)	(5,309)	(3,129)
Recoveries	1	124	11	577
Provision (benefit)	6,273	182	6,175	287
Ending Balance	3,511	2,948	3,511	2,948
Residential Real Estate
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	7,564	7,875	7,711	8,427
Charge-offs	(59)	(49)	(59)	(137)
Recoveries	0	0	19	0
Provision (benefit)	139	745	(27)	281
Ending Balance	7,644	8,571	7,644	8,571
Consumer
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	9,423	8,795	9,582	9,050
Charge-offs	(525)	(563)	(1,211)	(5,959)
Recoveries	154	188	1,465	472
Provision (benefit)	664	959	(120)	5,816
Ending Balance	9,716	9,379	9,716	9,379
Commercial and Industrial | Commercial and industrial
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	31,823	25,800	29,071	27,738
Charge-offs	(3,686)	(643)	(5,137)	(5,143)
Recoveries	118	445	1,840	651
Provision (benefit)	1,141	2,066	3,622	4,422
Ending Balance	29,396	27,668	29,396	27,668
Owner occupied commercial real estate | Commercial and industrial
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	14,151	17,975	13,948	19,214
Charge-offs	(5)	0	(19)	0
Recoveries	0	0	112	40
Provision (benefit)	563	(317)	668	(1,596)
Ending Balance	14,709	17,658	14,709	17,658
Non-owner occupied commercial real estate | Commercial and industrial
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	17,062	16,013	16,539	17,908
Charge-offs	(29)	(193)	(29)	(322)
Recoveries	0	0	0	33
Provision (benefit)	943	(82)	1,466	(1,881)
Ending Balance	17,976	15,738	17,976	15,738
Real Estate Construction | Commercial and industrial
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	30,138	21,397	29,998	22,538
Charge-offs	0	0	0	0
Recoveries	2	2	19	9
Provision (benefit)	(1,894)	(2,008)	(1,771)	(3,156)
Ending Balance	$ 28,246	$ 19,391	$ 28,246	$ 19,391