Statements of Operations and Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
REVENUES
Premiums	$ 9,787	$ 34,903	$ 28,019
Policy charges and fee income	740,823	806,327	809,242
Net investment income	139,430	164,011	217,883
Asset administration fees and other income	177,479	227,619	239,489
Realized investment gains (losses), net:
Other-than-temporary impairments on fixed maturity securities	(44)	(10)	0
Other-than-temporary impairments on fixed maturity securities transferred to other comprehensive income	24	10	0
Other realized investment gains (losses), net	6,072	7,368	(184,351)
Total realized investment gains (losses), net	6,052	7,368	(184,351)
Total revenues	1,073,571	1,240,228	1,110,282
BENEFITS AND EXPENSES
Policyholders’ benefits	60,461	137,135	29,727
Interest credited to policyholders’ account balances	225,555	211,058	(117,027)
Amortization of deferred policy acquisition costs	309,152	238,416	(385,561)
General, administrative and other expenses	313,471	394,248	402,679
Total benefits and expenses	908,639	980,857	(70,182)
INCOME FROM OPERATIONS BEFORE INCOME TAXES	164,932	259,371	1,180,464
Total income tax expense (benefit)	(8,285)	8,604	332,372
NET INCOME	173,217	250,767	848,092
Other comprehensive income (loss), before tax:
Foreign currency translation adjustments	(54)	(63)	5
Net unrealized investment gains (losses):
Unrealized investment gains (losses) for the period	(54,279)	35,931	(108,769)
Reclassification adjustment for gains included in net income	(4,831)	(14,706)	(8,805)
Net unrealized investment gains (losses)	(59,110)	21,225	(117,574)
Other comprehensive income (loss), before tax:	(59,164)	21,162	(117,569)
Less: Income tax expense (benefit) related to other comprehensive income (loss)
Foreign currency translation adjustments	(19)	(23)	2
Net unrealized investment gains (losses)	(20,689)	7,430	(41,151)
Total	(20,708)	7,407	(41,149)
Other comprehensive income (loss), net of taxes	(38,456)	13,755	(76,420)
COMPREHENSIVE INCOME	$ 134,761	$ 264,522	$ 771,672