LOANS RECEIVABLE AND THE ALLOWANCE FOR CREDIT LOSSES LOANS RECEIVABLE AND THE ALLOWANCE FOR CREDIT LOSSES (Troubled Debt Restructuring Which Incurred Payment Default) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
TDRs Which Incurred a Payment Default	$ 0	$ 0	$ 0	$ 0