Statement of Operations (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
REVENUES
Premiums	$ 6,053	$ 5,502	$ 21,161	$ 16,569
Policy charges and fee income	204,078	197,284	604,439	598,714
Net investment income	51,321	71,371	168,794	214,441
Asset management fees and other income	57,556	66,618	180,224	200,593
Realized investment gains (losses), net:
Other-than-temporary impairments on fixed maturity securities	0	(2,377)	0	(5,508)
Other-than-temporary impairments on fixed maturity securities transferred to Other Comprehensive Income	0	2,306	0	5,285
Other realized investment gains (losses), net	(68,980)	(60,569)	(150,491)	(61,340)
Total realized investment gains (losses), net	(68,980)	(60,640)	(150,491)	(61,563)
TOTAL REVENUES	250,028	280,135	824,127	968,754
BENEFITS AND EXPENSES
Policyholders' benefits	(23,602)	78,152	22,701	110,354
Interest credited to policyholders' account balances	(127,889)	(73,384)	(113,113)	66,411
Amortization of deferred policy acquisition costs	(278,452)	(229,687)	(350,066)	(119,840)
General, administrative and other expenses	97,420	93,052	297,864	309,829
TOTAL BENEFITS AND EXPENSES	(332,523)	(131,867)	(142,614)	366,754
INCOME FROM OPERATIONS BEFORE INCOME TAXES	582,551	412,002	966,741	602,000
IncomeTaxExpenseBenefitAbstract
Income tax expense (benefit)	182,255	102,255	275,387	157,053
NET INCOME	400,296	309,747	691,354	444,947
Other Comprehensive Income (Loss), before Tax [Abstract]
Foreign currency translation adjustments	15	20	0
Unrealized investment gains (losses) for the period	356	30,002	(92,502)	25,159
Reclassification adjustment for (gains) losses included in net income	(3,909)	(2,756)	(11,718)	(16,613)
Net unrealized investment gains (losses)	(3,553)	27,246	(104,220)	8,546
Other comprehensive income (loss), before tax	(3,538)	27,266	(104,220)	8,546
Other Comprehensive Income (Loss), Tax [Abstract]
Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax	5	7	0
Other Comprehensive Income Loss Available For Sale Securities Tax	(1,244)	9,536	(36,477)	2,998
Other Comprehensive Income (Loss), Tax, Total	(1,239)	9,543	(36,477)	2,998
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other comprehensive income (loss)	(2,299)	17,723	(67,743)	5,548
COMPREHENSIVE INCOME	$ 397,997	$ 327,470	$ 623,611	$ 450,495