GOODWILL, OTHER INTANGIBLE ASSETS AND MORTGAGE SERVICING RIGHTS (Mortgage Servicing Rights) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Servicing Asset at Amortized Value, Balance [Roll Forward]
Servicing Asset at Amortized Cost, Additions, Acquisitions		$ 63	$ 47
Servicing Contracts [Member]
Morgage Servicing Rights at Amortized Value [Line Items]
Loans Serviced For Others		2,530,000		$ 2,480,000
Custodial Accounts		3,400		$ 12,000
Servicing Asset at Amortized Value, Balance [Roll Forward]
Balance, net of valuation allowance, beginning of the period		14,148	14,638
Additions—amounts capitalized		1,420	672
Amortization	[1]	(1,354)	(940)
Balance, net of valuation allowance, end of the period	[2]	14,277	$ 14,417
Valuation allowance, end of period		$ 0

[1] Amortization of mortgage servicing rights is recorded as a reduction of loan servicing income within mortgage banking operations and any unamortized balance is fully amortized if the loan repays in full.

[2] There was no valuation allowance as of March 31, 2020 and 2019.