SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Deferred Policy Acquisition Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Recorded asset at beginning of year	$ 93,362
Recorded asset at end of year	88,102	$ 93,362
Continuing and Discontinuing Operations
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Recorded asset at beginning of year	164,112	168,264	$ 139,719
Underwriting costs deferred	207,949	211,271	203,982
Amortization of deferred policy acquisition costs	(212,927)	(211,013)	(186,817)
Ending unamortized deferred policy acquisition costs	159,134	168,522	156,884
Change in shadow deferred policy acquisition costs	119	(4,410)	11,380
Recorded asset at end of year	159,253	164,112	168,264
Continuing Operations - Property and Casualty Insurance
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Recorded asset at beginning of year	93,362	90,547	72,861
Underwriting costs deferred	202,486	205,707	197,869
Amortization of deferred policy acquisition costs	(207,746)	(202,892)	(180,183)
Recorded asset at end of year	88,102	93,362	90,547
Discontinued Operations - Life Insurance | Discontinued Operations
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Recorded asset at beginning of year	70,750	77,717	66,858
Underwriting costs deferred	5,463	5,564	6,113
Amortization of deferred policy acquisition costs	(5,181)	(8,121)	(6,634)
Ending unamortized deferred policy acquisition costs	71,032	75,160	66,337
Change in shadow deferred policy acquisition costs	119	(4,410)	11,380
Recorded asset at end of year	$ 71,151	$ 70,750	$ 77,717