LOANS (Not Covered by Share Agreements (Past Due Financing Receivables)) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	$ 95,426	$ 58,231
Total loans receivable held to maturity	12,068,645	11,428,352
Financial Asset, Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	13,477	5,039
30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	7,704	3,907
60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	3,266	859
90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	2,507	273
Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	11,959,742	11,365,082
Commercial and industrial | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	46,815	22,766
Total loans receivable held to maturity	3,652,047	3,464,414
Commercial and industrial | PPP
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	0	19
Total loans receivable held to maturity	2,777	11,025
Commercial and industrial | Owner occupied commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	31,592	8,803
Total loans receivable held to maturity	2,638,175	2,265,307
Commercial and industrial | Non-owner occupied commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	367	11,658
Total loans receivable held to maturity	2,553,711	2,330,940
Commercial and industrial | Real estate construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	783	2,351
Total loans receivable held to maturity	1,011,716	1,076,082
Commercial and industrial | Financial Asset, Past Due | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	4,067	1,586
Commercial and industrial | Financial Asset, Past Due | PPP
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	147	0
Commercial and industrial | Financial Asset, Past Due | Owner occupied commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	2,943	139
Commercial and industrial | Financial Asset, Past Due | Non-owner occupied commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	875	0
Commercial and industrial | Financial Asset, Past Due | Real estate construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	332	44
Commercial and industrial | 30-59 Days Past Due | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	1,738	1,099
Commercial and industrial | 30-59 Days Past Due | PPP
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	94	0
Commercial and industrial | 30-59 Days Past Due | Owner occupied commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	205	12
Commercial and industrial | 30-59 Days Past Due | Non-owner occupied commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	875	0
Commercial and industrial | 30-59 Days Past Due | Real estate construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	332	16
Commercial and industrial | 60-89 Days Past Due | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	126	356
Commercial and industrial | 60-89 Days Past Due | PPP
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	53	0
Commercial and industrial | 60-89 Days Past Due | Owner occupied commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	2,664	127
Commercial and industrial | 60-89 Days Past Due | Non-owner occupied commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	0	0
Commercial and industrial | 60-89 Days Past Due | Real estate construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	0	28
Commercial and industrial | 90 Days or More Past Due | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	2,203	131
Commercial and industrial | 90 Days or More Past Due | PPP
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	0	0
Commercial and industrial | 90 Days or More Past Due | Owner occupied commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	74	0
Commercial and industrial | 90 Days or More Past Due | Non-owner occupied commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	0	0
Commercial and industrial | 90 Days or More Past Due | Real estate construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	0	0
Commercial and industrial | Current | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	3,601,165	3,440,062
Commercial and industrial | Current | PPP
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	2,630	11,006
Commercial and industrial | Current | Owner occupied commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	2,603,640	2,256,365
Commercial and industrial | Current | Non-owner occupied commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	2,552,469	2,319,282
Commercial and industrial | Current | Real estate construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	1,010,601	1,073,687
Agricultural and agricultural real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	9,210	6,232
Total loans receivable held to maturity	919,184	920,510
Agricultural and agricultural real estate | Financial Asset, Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	133	190
Agricultural and agricultural real estate | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	121	48
Agricultural and agricultural real estate | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	0	0
Agricultural and agricultural real estate | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	12	142
Agricultural and agricultural real estate | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	909,841	914,088
Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	5,086	5,264
Total loans receivable held to maturity	797,829	853,361
Residential real estate | Financial Asset, Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	2,376	1,358
Residential real estate | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	2,082	1,206
Residential real estate | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	273	152
Residential real estate | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	21	0
Residential real estate | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	790,367	846,739
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	1,573	1,138
Total loans receivable held to maturity	493,206	506,713
Consumer | Financial Asset, Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	2,604	1,722
Consumer | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	2,257	1,526
Consumer | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	150	196
Consumer | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	197	0
Consumer | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans receivable held to maturity	$ 489,029	$ 503,853