LOANS - Activity in Allowance for Credit Losses (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Allowance for loan losses:
Beginning balance	$ 30,742	$ 35,820
Initial allowance on PCD loans	1,303
Loans And Leases Impact of ASC 326 Adoption On Non-PCD Loans		(718)
Impact of ASC 326 adoption on PCD loans		1,115
Provision for credit losses, LHFI	5,350	(1,456)	$ 25,151
Loans charged-off	(1,218)	(6,213)
Recoveries	2,740	2,194
Total ending allowance balance	38,917	30,742	35,820
Cadence Bank, N.A
Allowance for loan losses:
Provision for credit losses, LHFI		370
Commercial, financial and agriculture
Allowance for loan losses:
Beginning balance	4,873	6,214
Initial allowance on PCD loans	614
Loans And Leases Impact of ASC 326 Adoption On Non-PCD Loans		(1,319)
Impact of ASC 326 adoption on PCD loans		166
Provision for credit losses, LHFI	688	1,041
Loans charged-off	(259)	(1,662)
Recoveries	433	433
Total ending allowance balance	6,349	4,873	6,214
Commercial real estate
Allowance for loan losses:
Beginning balance	17,552	24,319
Initial allowance on PCD loans	576
Loans And Leases Impact of ASC 326 Adoption On Non-PCD Loans		(4,607)
Impact of ASC 326 adoption on PCD loans		575
Provision for credit losses, LHFI	1,742	(100)
Loans charged-off	(72)	(3,523)
Recoveries	591	888
Total ending allowance balance	20,389	17,552	24,319
Consumer real estate
Allowance for loan losses:
Beginning balance	7,889	4,736
Initial allowance on PCD loans	113
Loans And Leases Impact of ASC 326 Adoption On Non-PCD Loans		5,257
Impact of ASC 326 adoption on PCD loans		372
Provision for credit losses, LHFI	2,786	(2,314)
Loans charged-off	(204)	(473)
Recoveries	1,015	311
Total ending allowance balance	11,599	7,889	4,736
Consumer installment
Allowance for loan losses:
Beginning balance	428	551
Initial allowance on PCD loans	0
Loans And Leases Impact of ASC 326 Adoption On Non-PCD Loans		(49)
Impact of ASC 326 adoption on PCD loans		2
Provision for credit losses, LHFI	134	(83)
Loans charged-off	(683)	(555)
Recoveries	701	562
Total ending allowance balance	$ 580	$ 428	$ 551

Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, PCD Loans

No definition available.

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- Definition

Financing Receivable, Excluding Accrued Interest, Credit Loss Expense Reversal, Loans Held For Investments

+ References

No definition available.

+ Details

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- Definition

The amount of impact of ASC 326 adoption on non-PCD loans

+ References

No definition available.

+ Details

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- Definition

The amount of Impact of ASC 326 adoption on PCD loans.

+ References

No definition available.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446

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- Definition

Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-Subparagraph (e)
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447

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- Definition

Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447

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