Statements of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011 As restated and amended [Member]
OPERATING ACTIVITIES:
Net loss	$ (135.2)	$ (18.6)
Net realized investment losses	12.7	8.1
Policy acquisition costs deferred	(63.7)	(71.5)
Amortization of policy acquisition costs deferred	92.6	90.3
Interest credited	49.7	46.5
Equity in earnings of limited partnerships and other investments	(0.1)	(0.3)
Change in:
Accrued investment income	(10.6)	(9.6)
Deferred income taxes	(6.4)	(6.0)
Receivables	(37.7)	16.2
Policy liabilities and accruals	(36.9)	(111.5)
Due to/from affiliate	(22.9)	6.5
Other operating activities, net	(4.5)	(55.4)
Cash used for operating activities	(163.0)	(105.3)
Purchases of:
Available-for-sale debt securities	(915.7)	(1,036.7)
Derivative instruments	(93.3)	(23.0)
Fair value investments	(2.9)	(29.8)
Sales, repayments and maturities of:
Available-for-sale debt securities	592.9	393.7
Derivative instruments	16.2	50.3
Fair value investments	4.2	6.2
Contributions to limited partnerships	(1.6)	(0.9)
Distribution from limited partnerships	0.3	0.1
Policy loans, net	3.7	(3.1)
Other investing activities, net	(1.0)	(0.6)
Cash used for investing activities	(397.2)	(643.8)
FINANCING ACTIVITIES:
Policyholder deposit fund deposits	812.3	883.6
Policyholder deposit fund withdrawals	(381.7)	(357.9)
Net transfers from separate accounts	197.3	242.9
Cash provided by financing activities	627.9	768.6
Change in cash and cash equivalents	67.7	19.5
Cash and cash equivalents, beginning of year		34.1
Cash and cash equivalents, end of year	117.2	53.6
Non-Cash Transactions During the Year
Investment exchanges	$ 25.6	$ 12.0