LOANS (Financing receivables, non accrual status) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Receivables [Abstract]
Nonaccrual loans	$ 72,670	$ 67,833
Nonaccrual troubled debt restructured loans	4,624	4,110
Total nonaccrual loans	77,294	71,943
Accruing loans past due 90 days or more	1,706	726
Performing troubled debt restructured loans	$ 3,460	$ 4,026