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PREMISES AND EQUIPMENT (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
PREMISES AND EQUIPMENT
Premises and equipment, gross	$ 308,503	$ 298,205
Accumulated depreciation	(135,085)	(137,427)
Premises and equipment, net	173,418	160,778
Land and land improvements
PREMISES AND EQUIPMENT
Premises and equipment, gross	33,954	34,487
Assets held for sale	1,300	2,500
Bank Premises
PREMISES AND EQUIPMENT
Premises and equipment, gross	155,146	158,312
Bank Premises | Other assets
PREMISES AND EQUIPMENT
Assets held for sale	1,400	2,900
Equipment
PREMISES AND EQUIPMENT
Premises and equipment, gross	71,372	72,960
Operating lease right-of-use assets
PREMISES AND EQUIPMENT
Premises and equipment, gross	40,036	30,069
Construction in progress
PREMISES AND EQUIPMENT
Premises and equipment, gross	7,995	2,377
Premises and equipment | Other assets
PREMISES AND EQUIPMENT
Assets held for sale	$ 2,700	$ 5,400

X

- Definition

Amount of accumulated depreciation and amortization from plant, property, and equipment and right-of-use asset from operating lease.

+ References

No definition available.

+ Details

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X

- Definition

Amount, after accumulated depreciation and amortization, of property, plant, and equipment and operating lease right-of-use asset.

+ References

No definition available.

+ Details

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X

- Definition

Amount of assets held-for-sale that are not part of a disposal group.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 360
-SubTopic 10
-Name Accounting Standards Codification
-Section 15
-Paragraph 4
-Subparagraph (b)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482309/360-10-15-4

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- Definition

Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(8))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(13))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 360
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482099/360-10-50-1

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- References

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