LOANS AND ALLOWANCE FOR CREDIT LOSSES - RISK CATEGORY (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Risk category of rated loans
2020	$ 910,281
2019	842,606
2018	473,714
2017	436,839
Prior	973,902
Revolving Loans Amortized Cost Basis	1,388,017
Revolving Loans Converted To Term Loans	39,733
Loans	5,065,092	$ 4,433,151
Residential Real Estate - Owner Occupied
Risk category of rated loans
2020	90,354
2019	167,676
2018	109,627
2017	89,922
Prior	427,746
Loans	885,325
Residential Real Estate - Non Owner Occupied
Risk category of rated loans
2020	23,899
2019	75,496
2018	52,683
2017	50,441
Prior	52,181
Loans	254,700
Commercial Real Estate
Risk category of rated loans
2020	120,552
2019	328,746
2018	209,251
2017	218,647
Prior	405,361
Revolving Loans Converted To Term Loans	39,733
Loans	1,322,290
Construction & land development
Risk category of rated loans
2020	55,961
2019	58,069
2018	16,050
2017	11,719
Prior	15,455
Loans	157,254
Commercial & industrial
Risk category of rated loans
2020	594,555
2019	150,460
2018	50,706
2017	49,358
Prior	56,807
Revolving Loans Amortized Cost Basis	2,841
Loans	904,727
Lease Financing Receivables
Risk category of rated loans
2020	711
2019	4,602
2018	2,510
2017	3,232
Prior	809
Loans	11,864
Warehouse lines of credit
Risk category of rated loans
Revolving Loans Amortized Cost Basis	1,029,779
Loans	1,029,779
Home equity lines of credit
Risk category of rated loans
Revolving Loans Amortized Cost Basis	265,266
Loans	265,266
Consumer
Risk category of rated loans
2020	17,151
2019	48,961
2018	29,265
2017	11,843
Prior	12,764
Revolving Loans Amortized Cost Basis	14,413
Loans	134,397
Other TRS loans
Risk category of rated loans
Revolving Loans Amortized Cost Basis	289
Loans	289
Republic Credit Solutions
Risk category of rated loans
2020	7,098
2019	8,596
2018	3,622
2017	1,677
Prior	2,779
Revolving Loans Amortized Cost Basis	75,429
Loans	99,201
Pass
Risk category of rated loans
2020	905,668
2019	837,387
2018	472,514
2017	433,100
Prior	941,578
Revolving Loans Amortized Cost Basis	1,383,397
Revolving Loans Converted To Term Loans	36,887
Loans	5,010,531	2,648,380
Pass | Residential Real Estate - Owner Occupied
Risk category of rated loans
2020	90,354
2019	166,133
2018	108,759
2017	87,604
Prior	404,104
Loans	856,954
Pass | Residential Real Estate - Non Owner Occupied
Risk category of rated loans
2020	23,599
2019	74,957
2018	52,683
2017	50,441
Prior	51,297
Loans	252,977
Pass | Commercial Real Estate
Risk category of rated loans
2020	116,710
2019	328,746
2018	209,251
2017	217,425
Prior	398,039
Revolving Loans Converted To Term Loans	36,887
Loans	1,307,058
Pass | Construction & land development
Risk category of rated loans
2020	55,961
2019	55,460
2018	16,050
2017	11,719
Prior	15,455
Loans	154,645
Pass | Commercial & industrial
Risk category of rated loans
2020	594,084
2019	149,970
2018	50,438
2017	49,358
Prior	56,571
Revolving Loans Amortized Cost Basis	2,087
Loans	902,508
Pass | Lease Financing Receivables
Risk category of rated loans
2020	711
2019	4,602
2018	2,510
2017	3,232
Prior	809
Loans	11,864
Pass | Warehouse lines of credit
Risk category of rated loans
Revolving Loans Amortized Cost Basis	1,029,779
Loans	1,029,779
Pass | Home equity lines of credit
Risk category of rated loans
Revolving Loans Amortized Cost Basis	262,318
Loans	262,318
Pass | Consumer
Risk category of rated loans
2020	17,151
2019	48,923
2018	29,201
2017	11,644
Prior	12,524
Revolving Loans Amortized Cost Basis	14,402
Loans	133,845
Pass | Other TRS loans
Risk category of rated loans
Revolving Loans Amortized Cost Basis	77
Loans	77
Pass | Republic Credit Solutions
Risk category of rated loans
2020	7,098
2019	8,596
2018	3,622
2017	1,677
Prior	2,779
Revolving Loans Amortized Cost Basis	74,734
Loans	98,506
Special Mention
Risk category of rated loans
2020	1,628
2019	2,421
2018	196
2017	1,627
Prior	12,902
Revolving Loans Amortized Cost Basis	139
Revolving Loans Converted To Term Loans	2,846
Loans	21,759	21,754
Special Mention | Residential Real Estate - Owner Occupied
Risk category of rated loans
2018	46
2017	1,627
Prior	9,826
Loans	11,499
Special Mention | Residential Real Estate - Non Owner Occupied
Risk category of rated loans
2020	300
Prior	158
Loans	458
Special Mention | Commercial Real Estate
Risk category of rated loans
2020	878
Prior	2,883
Revolving Loans Converted To Term Loans	2,846
Loans	6,607
Special Mention | Construction & land development
Risk category of rated loans
2019	2,421
Loans	2,421
Special Mention | Commercial & industrial
Risk category of rated loans
2020	450
2018	150
Prior	35
Loans	635
Special Mention | Home equity lines of credit
Risk category of rated loans
Revolving Loans Amortized Cost Basis	128
Loans	128
Special Mention | Consumer
Risk category of rated loans
Revolving Loans Amortized Cost Basis	11
Loans	11
Substandard
Risk category of rated loans
2020	2,985
2019	2,798
2018	1,004
2017	2,112
Prior	19,422
Revolving Loans Amortized Cost Basis	4,481
Loans	32,802	33,297
Substandard | Residential Real Estate - Owner Occupied
Risk category of rated loans
2019	1,543
2018	822
2017	691
Prior	13,816
Loans	16,872
Substandard | Residential Real Estate - Non Owner Occupied
Risk category of rated loans
2019	539
Prior	726
Loans	1,265
Substandard | Commercial Real Estate
Risk category of rated loans
2020	2,964
2017	1,222
Prior	4,439
Loans	8,625
Substandard | Construction & land development
Risk category of rated loans
2019	188
Loans	188
Substandard | Commercial & industrial
Risk category of rated loans
2020	21
2019	490
2018	118
Prior	201
Revolving Loans Amortized Cost Basis	754
Loans	1,584
Substandard | Home equity lines of credit
Risk category of rated loans
Revolving Loans Amortized Cost Basis	2,820
Loans	2,820
Substandard | Consumer
Risk category of rated loans
2019	38
2018	64
2017	199
Prior	240
Loans	541
Substandard | Other TRS loans
Risk category of rated loans
Revolving Loans Amortized Cost Basis	212
Loans	212
Substandard | Republic Credit Solutions
Risk category of rated loans
Revolving Loans Amortized Cost Basis	695
Loans	695
PCI Loans - Group 1
Risk category of rated loans
Loans		797
PCI Loans - Substandard
Risk category of rated loans
Loans		1,289
Rated Loans
Risk category of rated loans
Loans		2,705,517
Core Banking
Risk category of rated loans
Loans	4,965,602	4,313,389
Core Banking | Warehouse lines of credit
Risk category of rated loans
Loans	1,029,779	717,458
Core Banking | Pass
Risk category of rated loans
Loans		2,648,380
Core Banking | Pass | Warehouse lines of credit
Risk category of rated loans
Loans		717,458
Core Banking | Special Mention
Risk category of rated loans
Loans		21,754
Core Banking | Substandard
Risk category of rated loans
Loans		32,889
Core Banking | PCI Loans - Group 1
Risk category of rated loans
Loans		797
Core Banking | PCI Loans - Substandard
Risk category of rated loans
Loans		1,289
Core Banking | Rated Loans
Risk category of rated loans
Loans		2,705,109
Core Banking | Rated Loans | Warehouse lines of credit
Risk category of rated loans
Loans		717,458
Traditional Banking
Risk category of rated loans
Loans	3,935,823	3,595,931
Traditional Banking | Residential Real Estate - Owner Occupied
Risk category of rated loans
Loans	885,325	949,568
Traditional Banking | Residential Real Estate - Non Owner Occupied
Risk category of rated loans
Loans	254,700	258,803
Traditional Banking | Commercial Real Estate
Risk category of rated loans
Loans	1,322,290	1,303,000
Traditional Banking | Construction & land development
Risk category of rated loans
Loans	157,254	159,702
Traditional Banking | Commercial & industrial
Risk category of rated loans
Loans	904,727	477,236
Traditional Banking | Lease Financing Receivables
Risk category of rated loans
Loans	11,864	14,040
Traditional Banking | Home equity lines of credit
Risk category of rated loans
Loans	265,266	293,186
Traditional Banking | Consumer: Credit cards
Risk category of rated loans
Loans	14,265	17,836
Traditional Banking | Consumer: Overdrafts
Risk category of rated loans
Loans	488	1,522
Traditional Banking | Consumer
Risk category of rated loans
Loans	134,397
Traditional Banking | Consumer: Automobile loan
Risk category of rated loans
Loans	41,059	52,923
Traditional Banking | Other consumer
Risk category of rated loans
Loans	78,585	68,115
Traditional Banking | Pass
Risk category of rated loans
Loans		1,930,922
Traditional Banking | Pass | Commercial Real Estate
Risk category of rated loans
Loans		1,286,623
Traditional Banking | Pass | Construction & land development
Risk category of rated loans
Loans		157,165
Traditional Banking | Pass | Commercial & industrial
Risk category of rated loans
Loans		473,094
Traditional Banking | Pass | Lease Financing Receivables
Risk category of rated loans
Loans		14,040
Traditional Banking | Special Mention
Risk category of rated loans
Loans		21,754
Traditional Banking | Special Mention | Residential Real Estate - Owner Occupied
Risk category of rated loans
Loans		12,153
Traditional Banking | Special Mention | Residential Real Estate - Non Owner Occupied
Risk category of rated loans
Loans		487
Traditional Banking | Special Mention | Commercial Real Estate
Risk category of rated loans
Loans		4,623
Traditional Banking | Special Mention | Construction & land development
Risk category of rated loans
Loans		2,339
Traditional Banking | Special Mention | Commercial & industrial
Risk category of rated loans
Loans		2,152
Traditional Banking | Substandard
Risk category of rated loans
Loans		32,889
Traditional Banking | Substandard | Residential Real Estate - Owner Occupied
Risk category of rated loans
Loans		14,441
Traditional Banking | Substandard | Residential Real Estate - Non Owner Occupied
Risk category of rated loans
Loans		1,285
Traditional Banking | Substandard | Commercial Real Estate
Risk category of rated loans
Loans		11,123
Traditional Banking | Substandard | Construction & land development
Risk category of rated loans
Loans		198
Traditional Banking | Substandard | Commercial & industrial
Risk category of rated loans
Loans		1,968
Traditional Banking | Substandard | Home equity lines of credit
Risk category of rated loans
Loans		3,276
Traditional Banking | Substandard | Consumer: Automobile loan
Risk category of rated loans
Loans		247
Traditional Banking | Substandard | Other consumer
Risk category of rated loans
Loans		351
Traditional Banking | PCI Loans - Group 1
Risk category of rated loans
Loans		797
Traditional Banking | PCI Loans - Group 1 | Residential Real Estate - Owner Occupied
Risk category of rated loans
Loans		140
Traditional Banking | PCI Loans - Group 1 | Commercial Real Estate
Risk category of rated loans
Loans		631
Traditional Banking | PCI Loans - Group 1 | Commercial & industrial
Risk category of rated loans
Loans		22
Traditional Banking | PCI Loans - Group 1 | Home equity lines of credit
Risk category of rated loans
Loans		4
Traditional Banking | PCI Loans - Substandard
Risk category of rated loans
Loans		1,289
Traditional Banking | PCI Loans - Substandard | Residential Real Estate - Owner Occupied
Risk category of rated loans
Loans		1,281
Traditional Banking | PCI Loans - Substandard | Home equity lines of credit
Risk category of rated loans
Loans		6
Traditional Banking | PCI Loans - Substandard | Other consumer
Risk category of rated loans
Loans		2
Traditional Banking | Rated Loans
Risk category of rated loans
Loans		1,987,651
Traditional Banking | Rated Loans | Residential Real Estate - Owner Occupied
Risk category of rated loans
Loans		28,015
Traditional Banking | Rated Loans | Residential Real Estate - Non Owner Occupied
Risk category of rated loans
Loans		1,772
Traditional Banking | Rated Loans | Commercial Real Estate
Risk category of rated loans
Loans		1,303,000
Traditional Banking | Rated Loans | Construction & land development
Risk category of rated loans
Loans		159,702
Traditional Banking | Rated Loans | Commercial & industrial
Risk category of rated loans
Loans		477,236
Traditional Banking | Rated Loans | Lease Financing Receivables
Risk category of rated loans
Loans		14,040
Traditional Banking | Rated Loans | Home equity lines of credit
Risk category of rated loans
Loans		3,286
Traditional Banking | Rated Loans | Consumer: Automobile loan
Risk category of rated loans
Loans		247
Traditional Banking | Rated Loans | Other consumer
Risk category of rated loans
Loans		353
Republic Processing Group
Risk category of rated loans
Loans	99,490	119,762
Republic Processing Group | Other TRS loans
Risk category of rated loans
Loans	289	14,365
Republic Processing Group | Republic Credit Solutions
Risk category of rated loans
Loans	$ 99,201	105,397
Republic Processing Group | Substandard
Risk category of rated loans
Loans		408
Republic Processing Group | Substandard | Other TRS loans
Risk category of rated loans
Loans		53
Republic Processing Group | Substandard | Republic Credit Solutions
Risk category of rated loans
Loans		355
Republic Processing Group | Rated Loans
Risk category of rated loans
Loans		408
Republic Processing Group | Rated Loans | Other TRS loans
Risk category of rated loans
Loans		53
Republic Processing Group | Rated Loans | Republic Credit Solutions
Risk category of rated loans
Loans		$ 355