OTHER COMPREHENSIVE INCOME (LOSS) (DETAILS) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Before Tax Amount
Unrealized gains (losses) arising during the period	$ 133,575	$ (289,028)	$ 214,135	$ (307,629)
Adjustment for reclassification of net realized investment gains and OTTI losses recognized in net income	(40,259)	(5,697)	(56,328)	(42,951)
Unrealized gains (losses) arising during the period, net of reclassification adjustment	93,316	(294,725)	157,807	(350,580)
Non-credit portion of OTTI losses	0	0	0	0
Foreign currency translation adjustment	3,790	(18,386)	6,449	(18,527)
Total other comprehensive income (loss)	97,106	(313,111)	164,256	(369,107)
Tax (Expense) Benefit
Unrealized gains (losses) arising during the period	(13,025)	26,127	(22,202)	26,203
Adjustment for reclassification of net realized investment gains and OTTI losses recognized in net income	6,330	1,631	12,785	5,037
Unrealized gains (losses) arising during the period, net of reclassification adjustment	(6,695)	27,758	(9,417)	31,240
Non-credit portion of OTTI losses	0	0	0	0
Foreign currency translation adjustment	0	0	0	0
Total other comprehensive income (loss)	(6,695)	27,758	(9,417)	31,240
Net of Tax Amount
Unrealized gains (losses) arising during the period	120,550	(262,901)	191,933	(281,426)
Adjustment for reclassification of net realized investment gains and OTTI losses recognized in net income	(33,929)	(4,066)	(43,543)	(37,914)
Unrealized gains (losses) arising during the period, net of reclassification adjustment	86,621	(266,967)	148,390	(319,340)
Non-credit portion of OTTI losses	0	0	0	0
Foreign currency translation adjustment	3,790	(18,386)	6,449	(18,527)
Total other comprehensive income (loss), net of tax	$ 90,411	$ (285,353)	$ 154,839	$ (337,867)