Interim Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
OPERATING ACTIVITIES:
Net income (loss)	$ 2,895	$ 15,224
Net realized investment losses	7,772	4,462
Amortization of deferred policy acquisition costs	28,735	32,283
Policy acquisition costs deferred	(28,919)	(36,147)
Undistributed equity in earnings of limited partnerships and other investments	(106)	(95)
Change in:
Accrued investment income	(5,403)	(3,216)
Deferred income taxes	(10,953)	1,679
Receivables	13,581	(21,615)
Policy liabilities and accruals	25,662	14,259
Other assets and other liabilities, net	17,958	26,628
Cash provided by operating activities	51,222	33,462
Purchases of:
Available-for-sale debt securities	(280,413)	(339,099)
Limited partnerships and other investments	(631)	(247)
Derivative instruments	(19,001)	(16,212)
Sales, repayments and maturities of:
Available-for-sale debt securities	107,010	111,547
Limited partnerships and other investments	199	0
Derivative instruments	1,792	15,575
Fair value option investments	0	0
Policy loan, net	1,846	(1,020)
Cash used for investing activities	(189,198)	(229,456)
FINANCING ACTIVITIES:
Policyholder deposit fund deposits	214,831	214,496
Policyholder deposit fund withdrawals	(53,494)	(32,142)
Capital contributions from parent	0	0
Cash provided by financing activities	161,337	182,354
Change in cash and cash equivalents	23,361	(13,640)
Cash and cash equivalents, beginning of period	67,465	51,059
Cash and cash equivalents, end of period	$ 90,826	$ 37,419