REVENUE FROM CONTRACTS WITH CUSTOMERS (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Revenue recognition
Net interest income	$ 72,738	$ 72,299
Noninterest income:
Service charges on deposit accounts	3,136	3,303
Net refund transfer fees	15,823	17,100
Mortgage banking income	4,795	1,539
Interchange fee income	2,552	2,757
Program fees	2,624	1,074
Increase in cash surrender value of bank owned life insurance	389	382
Net gains (losses) on OREO	3	130
Other	1,247	1,132
Noninterest income	30,569	27,417
Total net revenue	$ 103,307	$ 99,716
Net-revenue concentration (as percent)	100.00%	100.00%
Writedowns during entity's holding of property (as a percent)	10.00%
Core Banking Activities
Revenue recognition
Net interest income	$ 45,141	$ 44,344
Noninterest income:
Service charges on deposit accounts	3,149	3,303
Mortgage banking income	4,795	1,539
Interchange fee income	2,493	2,626
Increase in cash surrender value of bank owned life insurance	389	382
Net gains (losses) on OREO	3	130
Other	1,236	505
Noninterest income	12,065	8,485
Total net revenue	$ 57,206	$ 52,829
Net-revenue concentration (as percent)	55.00%	53.00%
Traditional Banking
Revenue recognition
Net interest income	$ 40,620	$ 41,347
Noninterest income:
Service charges on deposit accounts	3,138	3,293
Interchange fee income	2,493	2,626
Increase in cash surrender value of bank owned life insurance	389	382
Net gains (losses) on OREO	3	130
Other	1,212	465
Noninterest income	7,235	6,896
Total net revenue	$ 47,855	$ 48,243
Net-revenue concentration (as percent)	46.00%	48.00%
Warehouse Lending
Revenue recognition
Net interest income	$ 4,307	$ 2,895
Noninterest income:
Service charges on deposit accounts	11	10
Noninterest income	11	10
Total net revenue	$ 4,318	$ 2,905
Net-revenue concentration (as percent)	4.00%	3.00%
Mortgage Banking
Revenue recognition
Net interest income	$ 214	$ 102
Noninterest income:
Mortgage banking income	4,795	1,539
Other	24	40
Noninterest income	4,819	1,579
Total net revenue	$ 5,033	$ 1,681
Net-revenue concentration (as percent)	5.00%	2.00%
Republic Processing Group
Revenue recognition
Net interest income	$ 27,597	$ 27,955
Noninterest income:
Service charges on deposit accounts	(13)
Net refund transfer fees	15,823	17,100
Interchange fee income	59	131
Program fees	2,624	1,074
Other	11	627
Noninterest income	18,504	18,932
Total net revenue	$ 46,101	$ 46,887
Net-revenue concentration (as percent)	45.00%	47.00%
Tax Refund Solutions
Revenue recognition
Net interest income	$ 20,525	$ 20,438
Noninterest income:
Service charges on deposit accounts	(13)
Net refund transfer fees	15,823	17,100
Interchange fee income	59	131
Program fees	312	146
Other	11
Noninterest income	16,192	17,377
Total net revenue	$ 36,717	$ 37,815
Net-revenue concentration (as percent)	36.00%	38.00%
Republic Credit Solutions
Revenue recognition
Net interest income	$ 7,072	$ 7,517
Noninterest income:
Program fees	2,312	928
Other		627
Noninterest income	2,312	1,555
Total net revenue	$ 9,384	$ 9,072
Net-revenue concentration (as percent)	9.00%	9.00%

Income from mortgage banking activities Processing Group program fees and commissions.

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Noninterest income from interchange fees.

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The minimum percentage of write-down of other real estate owned.

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Income from mortgage banking.

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Represents fees earned on refund transfers or ("RTs"). RTs are products whereby a tax refund is issued to the taxpayer after the Bank has received the refund from the federal or state government. These fees are reported as non interest income.

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Noninterest income from service charges on deposit accounts.

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Earnings on or other increases in the value of the cash surrender value of bank owned life insurance policies.

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The net gain (loss) resulting from sales and other disposals of other real estate owned, increases (decreases) in the valuation allowance for foreclosed real estate, and write-downs of other real estate owned after acquisition or physical possession.

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The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified.

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Amount of revenue earned, classified as other, excluding interest income.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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