LOANS AND ALLOWANCE FOR CREDIT LOSSES - ALLOWANCE ACTIVITY (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Allowance for loan losses rollforward
Beginning Balance	$ 43,351	$ 44,675
Provision	22,514	17,231
Charged-off	(3,275)	(4,453)
Recoveries	1,107	508
Ending Balance	$ 70,431	57,961
Minimum
Allowance for loan losses rollforward
Percentage of unemployment rate	8.00%
Core Banking Activities
Allowance for loan losses rollforward
Beginning Balance	$ 29,999	31,519
Provision	5,675	414
Charged-off	(522)	(612)
Recoveries	794	248
Ending Balance	42,680	31,569
Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	28,205	30,347
Provision	5,343	189
Charged-off	(522)	(612)
Recoveries	794	248
Ending Balance	40,554	30,172
Republic Processing Group
Allowance for loan losses rollforward
Beginning Balance	13,352	13,156
Provision	16,839	16,817
Charged-off	(2,753)	(3,841)
Recoveries	313	260
Ending Balance	27,751	26,392
Residential Real Estate - Owner Occupied \| Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	4,729	6,035
Provision	447	(255)
Charged-off	(27)	(17)
Recoveries	39	38
Ending Balance	9,387	5,801
Residential Real Estate - Non Owner Occupied \| Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	1,737	1,662
Provision	278	130
Charged-off		(72)
Recoveries	2
Ending Balance	2,165	1,720
Commercial Real Estate \| Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	10,486	10,030
Provision	2,151	203
Recoveries	471	2
Ending Balance	13,381	10,235
Construction & land development \| Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	2,152	2,555
Provision	937	(112)
Ending Balance	4,536	2,443
Commercial & industrial \| Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	2,882	2,873
Provision	974	360
Recoveries	3	2
Ending Balance	2,541	3,235
Lease Financing Receivables \| Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	147	158
Provision	(14)	(8)
Ending Balance	133	150
Home equity lines of credit \| Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	2,721	3,477
Provision	842	(157)
Charged-off		(13)
Recoveries	75	30
Ending Balance	5,290	3,337
Consumer: Credit cards \| Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	1,020	1,140
Provision	22	65
Charged-off	(106)	(150)
Recoveries	9	24
Ending Balance	978	1,079
Consumer: Overdrafts \| Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	1,169	1,102
Provision	(122)	19
Charged-off	(344)	(294)
Recoveries	55	65
Ending Balance	758	892
Consumer: Automobile loan \| Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	612	724
Provision	(79)	38
Charged-off	(8)
Recoveries	28	6
Ending Balance	546	768
Other consumer \| Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	550	591
Provision	(93)	(94)
Charged-off	(37)	(66)
Recoveries	112	81
Ending Balance	839	512
Warehouse lines of credit \| Core Banking Activities
Allowance for loan losses rollforward
Beginning Balance	1,794	1,172
Provision	332	225
Ending Balance	2,126	1,397
Easy Advances \| Republic Processing Group
Allowance for loan losses rollforward
Provision	15,228	13,381
Recoveries	42
Ending Balance	15,270	13,381
Other TRS loans \| Republic Processing Group
Allowance for loan losses rollforward
Beginning Balance	234	107
Provision	(95)	53
Charged-off	(44)	(17)
Recoveries		6
Ending Balance	95	149
Republic Credit Solutions \| Republic Processing Group
Allowance for loan losses rollforward
Beginning Balance	13,118	13,049
Provision	1,706	3,383
Charged-off	(2,709)	(3,824)
Recoveries	271	254
Ending Balance	12,386	$ 12,862
ASU 2016-13
Allowance for loan losses rollforward
Beginning Balance	50,085
ASU 2016-13 \| Adjustment
Allowance for loan losses rollforward
Beginning Balance	6,734
ASU 2016-13 \| Core Banking Activities
Allowance for loan losses rollforward
Beginning Balance	36,733
ASU 2016-13 \| Core Banking Activities \| Adjustment
Allowance for loan losses rollforward
Beginning Balance	6,734
ASU 2016-13 \| Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	34,939
ASU 2016-13 \| Traditional Banking \| Adjustment
Allowance for loan losses rollforward
Beginning Balance	6,734
ASU 2016-13 \| Republic Processing Group
Allowance for loan losses rollforward
Beginning Balance	13,352
ASU 2016-13 \| Residential Real Estate - Owner Occupied \| Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	8,928
ASU 2016-13 \| Residential Real Estate - Owner Occupied \| Traditional Banking \| Adjustment
Allowance for loan losses rollforward
Beginning Balance	4,199
ASU 2016-13 \| Residential Real Estate - Non Owner Occupied \| Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	1,885
ASU 2016-13 \| Residential Real Estate - Non Owner Occupied \| Traditional Banking \| Adjustment
Allowance for loan losses rollforward
Beginning Balance	148
ASU 2016-13 \| Commercial Real Estate \| Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	10,759
ASU 2016-13 \| Commercial Real Estate \| Traditional Banking \| Adjustment
Allowance for loan losses rollforward
Beginning Balance	273
ASU 2016-13 \| Construction & land development \| Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	3,599
ASU 2016-13 \| Construction & land development \| Traditional Banking \| Adjustment
Allowance for loan losses rollforward
Beginning Balance	1,447
ASU 2016-13 \| Commercial & industrial \| Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	1,564
ASU 2016-13 \| Commercial & industrial \| Traditional Banking \| Adjustment
Allowance for loan losses rollforward
Beginning Balance	(1,318)
ASU 2016-13 \| Lease Financing Receivables \| Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	147
ASU 2016-13 \| Home equity lines of credit \| Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	4,373
ASU 2016-13 \| Home equity lines of credit \| Traditional Banking \| Adjustment
Allowance for loan losses rollforward
Beginning Balance	1,652
ASU 2016-13 \| Consumer: Credit cards \| Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	1,053
ASU 2016-13 \| Consumer: Credit cards \| Traditional Banking \| Adjustment
Allowance for loan losses rollforward
Beginning Balance	33
ASU 2016-13 \| Consumer: Overdrafts \| Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	1,169
ASU 2016-13 \| Consumer: Automobile loan \| Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	605
ASU 2016-13 \| Consumer: Automobile loan \| Traditional Banking \| Adjustment
Allowance for loan losses rollforward
Beginning Balance	(7)
ASU 2016-13 \| Other consumer \| Traditional Banking
Allowance for loan losses rollforward
Beginning Balance	857
ASU 2016-13 \| Other consumer \| Traditional Banking \| Adjustment
Allowance for loan losses rollforward
Beginning Balance	307
ASU 2016-13 \| Warehouse lines of credit \| Core Banking Activities
Allowance for loan losses rollforward
Beginning Balance	1,794
ASU 2016-13 \| Other TRS loans \| Republic Processing Group
Allowance for loan losses rollforward
Beginning Balance	234
ASU 2016-13 \| Republic Credit Solutions \| Republic Processing Group
Allowance for loan losses rollforward
Beginning Balance	$ 13,118

Percentage of unemployment rate due to economic conditions caused by COVID-19 pandemic.

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- Definition

Amount of increase in allowance for credit loss on accounts receivable, from recovery.

+ 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)
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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 of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount of expense related to estimated loss from loan and lease transactions.

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