ALLOWANCES FOR CREDIT LOSS (Premium Receivable Past Due) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable, Past Due [Line Items]
Amortized cost	$ 49,782
Allowance for credit loss	(150)	$ (159)
Net	49,632
Current
Financing Receivable, Past Due [Line Items]
Amortized cost	48,722
Allowance for credit loss	0
Net	48,722
Financial Asset, 1 to 29 Days Past Due
Financing Receivable, Past Due [Line Items]
Amortized cost	866
Allowance for credit loss	(9)
Net	857
Financial Asset, 30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Amortized cost	41
Allowance for credit loss	(2)
Net	39
Financial Asset, 60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Amortized cost	20
Allowance for credit loss	(6)
Net	14
Financial Asset, Equal to or Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Amortized cost	133
Allowance for credit loss	(133)
Net	$ 0