SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Deferred Policy Acquisition Costs) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Recorded asset at beginning of year	$ 105,300	$ 106,654	$ 87,524
Underwriting costs deferred	156,367	145,301	141,468
Amortization of deferred policy acquisition costs	(153,677)	(140,161)	(127,413)
Value of business acquired	0	0	27,436
Amortization of value of business acquired	0	(1,673)	(25,763)
Ending unamortized deferred policy acquisition costs	107,990	110,121	103,252
Change in shadow deferred policy acquisition costs	42,102	(4,821)	3,402
Recorded asset at end of year	150,092	105,300	106,654
Property and Casualty Insurance [Member]
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Recorded asset at beginning of year	64,947	60,668	44,681
Underwriting costs deferred	149,891	138,723	132,503
Amortization of deferred policy acquisition costs	(147,175)	(132,771)	(118,189)
Value of business acquired	0	0	27,436
Amortization of value of business acquired	0	(1,673)	(25,763)
Recorded asset at end of year	67,663	64,947	60,668
Life Insurance [Member]
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Recorded asset at beginning of year	40,353	45,986	42,843
Underwriting costs deferred	6,476	6,578	8,965
Amortization of deferred policy acquisition costs	(6,502)	(7,390)	(9,224)
Ending unamortized deferred policy acquisition costs	40,327	45,174	42,584
Change in shadow deferred policy acquisition costs	42,102	(4,821)	3,402
Recorded asset at end of year	$ 82,429	$ 40,353	$ 45,986