SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Deferred Policy Acquisition Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Recorded asset at beginning of year	$ 92,796
Recorded asset at end of year	94,292	$ 92,796
Continuing and Discontinuing Operations
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Recorded asset at beginning of year	92,796	159,253	$ 164,112
Underwriting costs deferred	218,195	212,302	207,949
Amortization of deferred policy acquisition costs	(216,699)	(208,127)	(212,927)
Ending unamortized deferred policy acquisition costs	94,292	163,428	159,134
Change in shadow deferred policy acquisition costs	0	7,274	119
Sale of discontinued operations	0	(77,906)	0
Recorded asset at end of year	94,292	92,796	159,253
Continuing Operations - Property and Casualty Insurance
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Recorded asset at beginning of year	92,796	88,102	93,362
Underwriting costs deferred	218,195	210,926	202,486
Amortization of deferred policy acquisition costs	(216,699)	(206,232)	(207,746)
Recorded asset at end of year	94,292	92,796	88,102
Discontinued Operations - Life Insurance | Discontinued Operations
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Recorded asset at beginning of year	0	71,151	70,750
Underwriting costs deferred	0	1,376	5,463
Amortization of deferred policy acquisition costs	0	(1,895)	(5,181)
Ending unamortized deferred policy acquisition costs	0	70,632	71,032
Change in shadow deferred policy acquisition costs	0	7,274	119
Sale of discontinued operations	0	(77,906)	0
Recorded asset at end of year	$ 0	$ 0	$ 71,151