LOANS AND ALLOWANCE FOR CREDIT LOSSES - ALLOWANCE ACTIVITY (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Beginning Balance	$ 80,687	$ 72,202	$ 82,130	$ 70,413	$ 70,413
Provision	5,659	3,730	41,430	36,635
Charge-offs			(90)		(141)
Charge-offs	(7,330)	(3,672)	(49,596)	(36,312)	(41,214)
Recoveries	3,142	2,316	8,194	3,624
Ending Balance	82,158	74,576	$ 82,158	74,576	82,130
Forecast period for unemployment and general CRE values			1 year
Adjustment
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Beginning Balance				216	216
Core Banking Activities
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Beginning Balance	61,235	56,913	$ 59,845	51,718	51,718
Provision	1,604	1,364	3,406	6,545
Charge-offs	(2,308)	(332)	(3,022)	(902)
Recoveries	504	129	806	497
Ending Balance	61,035	58,074	61,035	58,074	59,845
Core Banking Activities \| Adjustment
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Beginning Balance				216	216
Traditional Banking
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Beginning balance	1,116	825	1,061	110	110
Beginning Balance	59,865	55,567	58,998	50,709	50,709
Provision	8	265	99	764
Provision	1,488	1,567	2,767	6,411
Charge-offs	(32)		(90)
Charge-offs	(2,308)	(332)	(3,022)	(902)
Recoveries	24	(10)	46	10
Recoveries	504	129	806	497
Ending balance	1,116	1,100	1,116	1,100	1,061
Ending Balance	59,549	56,931	59,549	56,931	58,998
Traditional Banking \| Adjustment
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Beginning balance				216	216
Beginning Balance				216	216
Republic Processing Group
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Beginning balance	19,452	15,289	22,285	18,695	18,695
Provision	4,055	2,366	38,024	30,090
Charge-offs	(5,022)	(3,340)	(46,574)	(35,410)
Recoveries	2,638	2,187	7,388	3,127
Ending balance	21,123	16,502	21,123	16,502	22,285
Residential real estate \| Residential Real Estate - Owner Occupied
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Charge-offs			(62)		(26)
Residential real estate \| Residential Real Estate - Owner Occupied \| Traditional Banking
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Beginning balance	9,544	9,899	10,337	8,909	8,909
Provision	(141)	318	(961)	1,298
Charge-offs	(10)	(9)	(62)	(24)
Recoveries	24	23	103	48
Ending balance	9,417	10,231	9,417	10,231	10,337
Residential real estate \| Residential Real Estate - Non Owner Occupied \| Traditional Banking
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Beginning balance	2,957	3,086	3,047	2,831	2,831
Provision	(52)	(51)	(143)	203
Recoveries	1	1	2	2
Ending balance	2,906	3,036	2,906	3,036	3,047
Residential real estate \| Home equity
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Charge-offs			(29)		(2)
Residential real estate \| Home equity \| Traditional Banking
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Beginning balance	6,059	4,770	5,501	4,628	4,628
Provision	310	375	867	516
Charge-offs	(29)		(29)
Recoveries	10	1	11	2
Recoveries	6,350
Ending balance	6,350	5,146	6,350	5,146	5,501
Commercial real estate \| Traditional Banking
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Beginning balance	26,161	25,089	25,830	23,739	23,739
Provision	(135)	251	173	1,542
Recoveries	313	7	336	66
Ending balance	26,339	25,347	26,339	25,347	25,830
Construction & land development \| Traditional Banking
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Beginning balance	6,922	4,811	6,060	4,123	4,123
Provision	(261)	325	601	1,013
Ending balance	6,661	5,136	6,661	5,136	6,060
Commercial & industrial \| Commercial and Industrial \| Traditional Banking
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Beginning balance	4,133	4,322	4,236	3,976	3,976
Provision	(122)	(148)	(227)	89
Recoveries	1	7	3	116
Ending balance	4,012	4,181	4,012	4,181	4,236
Aircraft \| Traditional Banking
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Beginning balance	601	521	625	449	449
Provision	(13)	46	(37)	118
Ending balance	588	567	588	567	625
Consumer
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Charge-offs			(2,841)		(1,182)
Consumer \| Credit Card \| Traditional Banking
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Beginning balance	1,067	1,103	1,074	996	996
Provision	24	3	133	158
Charge-offs	(59)	(30)	(190)	(103)
Recoveries	48	16	63	41
Ending balance	1,080	1,092	1,080	1,092	1,074
Consumer \| Overdrafts \| Traditional Banking
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Beginning balance	658	706	694	726	726
Provision	181	128	443	437
Charge-offs	(231)	(243)	(658)	(676)
Recoveries	51	49	180	153
Ending balance	659	640	659	640	694
Consumer \| Automobile loans \| Traditional Banking
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Beginning balance	19	53	32	87	87
Provision	(25)	16	(41)	(16)
Charge-offs		(30)		(37)
Recoveries	20	2	23	7
Ending balance	14	41	14	41	32
Consumer \| Other consumer \| Traditional Banking
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Beginning balance	628	382	501	135	135
Provision	1,714	39	1,860	289
Charge-offs	(1,947)	(20)	(1,993)	(62)
Recoveries	12	13	39	52
Ending balance	407	414	407	414	501
Warehouse lines of credit \| Warehouse Lending
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Beginning balance	1,370	1,346	847	1,009	1,009
Provision	116	(203)	639	134
Ending balance	1,486	1,143	1,486	1,143	847
Tax Refund Solution
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Charge-offs			(32,692)		(25,951)
Tax Refund Solution \| Refund Advances \| Tax Refund Solutions
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Beginning balance			3,929	3,797	3,797
Provision	(2,311)	(1,939)	22,249	19,615
Charge-offs			(32,555)	(25,823)
Recoveries	2,311	1,939	6,377	2,411
Ending balance					3,929
Tax Refund Solution \| Other TRS commercial and industrial loans \| Tax Refund Solutions
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Beginning balance			61	91	91
Provision	1	(28)	33	7
Charge-offs			(137)	(128)
Recoveries		29	44	31
Ending balance	1	1	1	1	61
Republic Credit Solution
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Charge-offs			(13,882)		(13,912)
Republic Credit Solution \| Republic Credit Solutions
Financing Receivable And Net Investment In Lease, Excluding Interest Allowance for Credit Loss [Roll Forward]
Beginning balance	19,452	15,289	18,295	14,807	14,807
Provision	6,365	4,333	15,742	10,468
Charge-offs	(5,022)	(3,340)	(13,882)	(9,459)
Recoveries	327	219	967	685
Ending balance	$ 21,122	$ 16,501	$ 21,122	$ 16,501	$ 18,295

Amount of allowance for credit loss on financing receivable and net investment in lease.

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

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Forecast period of for unemployment and general CRE values.

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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
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (e)
-Publisher FASB
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

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