ALLOWANCES FOR CREDIT LOSS (Premium Receivable Past Due) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Amortized cost	$ 47,645	$ 51,036
Allowance for credit loss	(185)	(233)
Net	47,460	50,803
Current
Financing Receivable, Past Due [Line Items]
Amortized cost	44,465	46,376
Allowance for credit loss	0	0
Net	44,465	46,376
Days Past Due 1-29
Financing Receivable, Past Due [Line Items]
Amortized cost	2,888	4,253
Allowance for credit loss	(28)	(43)
Net	2,860	4,210
Days Past Due 30-59
Financing Receivable, Past Due [Line Items]
Amortized cost	126	159
Allowance for credit loss	(6)	(8)
Net	120	151
Days Past Due 60-89
Financing Receivable, Past Due [Line Items]
Amortized cost	22	94
Allowance for credit loss	(7)	(28)
Net	15	66
Days Past Due 90 Plus
Financing Receivable, Past Due [Line Items]
Amortized cost	144	154
Allowance for credit loss	(144)	(154)
Net	$ 0	$ 0