SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Deferred Policy Acquisition Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Recorded asset at beginning of year	$ 88,102
Recorded asset at end of year	92,796	$ 88,102
Continuing and Discontinuing Operations
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Recorded asset at beginning of year	159,253	164,112	$ 168,264
Underwriting costs deferred	212,302	207,949	211,271
Amortization of deferred policy acquisition costs	(208,127)	(212,927)	(211,013)
Ending unamortized deferred policy acquisition costs	163,428	159,134	168,522
Change in shadow deferred policy acquisition costs	7,274	119	(4,410)
Sale of discontinued operations	(77,906)	0	0
Recorded asset at end of year	92,796	159,253	164,112
Continuing Operations - Property and Casualty Insurance
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Recorded asset at beginning of year	88,102	93,362	90,547
Underwriting costs deferred	210,926	202,486	205,707
Amortization of deferred policy acquisition costs	(206,232)	(207,746)	(202,892)
Recorded asset at end of year	92,796	88,102	93,362
Discontinued Operations - Life Insurance | Discontinued Operations
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Recorded asset at beginning of year	71,151	70,750	77,717
Underwriting costs deferred	1,376	5,463	5,564
Amortization of deferred policy acquisition costs	(1,895)	(5,181)	(8,121)
Ending unamortized deferred policy acquisition costs	70,632	71,032	75,160
Change in shadow deferred policy acquisition costs	7,274	119	(4,410)
Sale of discontinued operations	(77,906)	0	0
Recorded asset at end of year	$ 0	$ 71,151	$ 70,750