ALLOWANCE FOR CREDIT LOSSES - Schedule of Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	$ 123,934	$ 112,707	$ 122,566	$ 109,483	$ 109,483
Charge-offs	(7,388)	(9,613)	(11,481)	(11,764)	(19,614)
Recoveries	578	275	2,371	3,466
Provision (benefit)	9,737	7,829	13,405	10,013
Ending Balance	126,861	111,198	126,861	111,198	122,566
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	13,786	21,086	16,468	20,196	20,196
Provision (benefit)	(729)	(2,450)	(3,411)	(1,560)
Ending balance	13,057	18,636	13,057	18,636	16,468
Agricultural and Agricultural Real Estate
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	5,108	2,546	4,292	2,634	2,634
Charge-offs	(608)	(5,309)	(875)	(5,309)	(5,319)
Recoveries	9	1	9	11
Provision (benefit)	4,396	6,273	5,479	6,175
Ending Balance	8,905	3,511	8,905	3,511	4,292
Residential Real Estate
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	5,155	7,564	5,845	7,711	7,711
Charge-offs	0	(59)	0	(59)	(183)
Recoveries	70	0	105	19
Provision (benefit)	(189)	139	(914)	(27)
Ending Balance	5,036	7,644	5,036	7,644	5,845
Consumer
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	7,476	9,423	8,572	9,582	9,582
Charge-offs	(469)	(525)	(1,998)	(1,211)	(3,677)
Recoveries	329	154	1,525	1,465
Provision (benefit)	163	664	(600)	(120)
Ending Balance	7,499	9,716	7,499	9,716	8,572
Commercial and Industrial | Commercial and industrial
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	41,105	31,823	40,679	29,071	29,071
Charge-offs	(5,914)	(3,686)	(8,211)	(5,137)	(8,622)
Recoveries	170	118	732	1,840
Provision (benefit)	9,439	1,141	11,600	3,622
Ending Balance	44,800	29,396	44,800	29,396	40,679
Owner occupied commercial real estate | Commercial and industrial
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	14,395	14,151	17,156	13,948	13,948
Charge-offs	(397)	(5)	(397)	(19)	(870)
Recoveries	0	0	0	112
Provision (benefit)	716	563	(2,045)	668
Ending Balance	14,714	14,709	14,714	14,709	17,156
Non-owner occupied commercial real estate | Commercial and industrial
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	15,770	17,062	17,249	16,539	16,539
Charge-offs	0	(29)	0	(29)	(627)
Recoveries	0	0	0	0
Provision (benefit)	(2,073)	943	(3,552)	1,466
Ending Balance	13,697	17,976	13,697	17,976	17,249
Real Estate Construction | Commercial and industrial
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	34,925	30,138	28,773	29,998	29,998
Charge-offs	0	0	0	0	(316)
Recoveries	0	2	0	19
Provision (benefit)	(2,715)	(1,894)	3,437	(1,771)
Ending Balance	$ 32,210	$ 28,246	$ 32,210	$ 28,246	$ 28,773