OTHER BORROWINGS (Schedule of Other Borrowings) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Long-term debt	$ 457,042	$ 275,773
Advances from the FHLB
Debt Instrument [Line Items]
Weighted average interest rate	3.03%	4.08%
Long-term debt	$ 1,018	$ 2,835
Paycheck Protection Program Liquidity Fund
Debt Instrument [Line Items]
Long-term debt	188,872	0
Trust preferred securities
Debt Instrument [Line Items]
Long-term debt	146,323	145,343
Note payable to unaffiliated bank
Debt Instrument [Line Items]
Long-term debt	44,417	51,417
Contracts payable for purchase of real estate and other assets
Debt Instrument [Line Items]
Long-term debt	1,983	1,892
Subordinated notes
Debt Instrument [Line Items]
Long-term debt	$ 74,429	$ 74,286