POLICY AND CLAIM RESERVES (Property and Casualty Reserve) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Less reinsurance recoverable on unpaid losses	$ 316		$ 1,772
Net losses:
Estimated claims and claim adjustment expenses for claims arising in prior years	(1,014)	$ (250)
Consolidated Property and Casualty Insurance Entity
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Balance, beginning of year	6,957	7,644	8,208	$ 7,075
Less reinsurance recoverable on unpaid losses	211	184	1,384	327
Net balances at beginning of year	6,746	7,460	$ 6,824	$ 6,748
Net losses:
Provision for claims and claim adjustment expenses for claims arising in current year	27,126	25,460
Estimated claims and claim adjustment expenses for claims arising in prior years	(1,014)	(250)
Total increases	26,112	25,210
Claims and claim adjustment expense payments for claims arising in:
Current year	22,694	20,906
Prior years	3,496	3,592
Total payments	$ 26,190	$ 24,498