Condensed Consolidated Statements of Operations (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Revenues:
Net investment income	$ 342.9	$ 311.9	$ 691.1	$ 663.9
Fee income	183.1	156.7	358.0	311.8
Premiums	7.2	11.7	15.1	23.5
Broker-dealer commission revenue	61.0	56.5	118.8	112.2
Net realized capital gains (losses):
Total other-than-temporary impairments	(1.8)	(2.6)	(2.9)	(4.0)
Less: Portion of other-than-temporary impairment losses recognized in Other comprehensive income (loss)	(0.5)	(0.9)	(1.0)	(1.0)
Net other-than-temporary impairments recognized in earnings	(1.3)	(1.7)	(1.9)	(3.0)
Other net realized capital gains (losses)	(68.6)	0.5	(108.1)	129.1
Total net realized capital gains (losses)	(69.9)	(1.2)	(110.0)	126.1
Other revenue	(0.6)	2.3	(5.5)	2.8
Total revenues	523.7	537.9	1,067.5	1,240.3
Benefits and expenses:
Policyholder benefits and interest credited to contract owner account balance	145.3	193.0	332.1	387.7
Operating expenses	176.3	177.2	349.9	357.6
Broker-dealer commission expense	61.0	56.5	118.8	112.2
Net amortization of deferred policy acquisition costs and value of business acquired	28.3	52.2	46.9	105.0
Interest expense	0	0.5	0.1	1.1
Total benefits and expenses	410.9	479.4	847.8	963.6
Income (loss) before income taxes	112.8	58.5	219.7	276.7
Income tax expense (benefit)	35.9	20.6	67.7	94.8
Net income (loss)	$ 76.9	$ 37.9	$ 152.0	$ 181.9