5. Demutualization and Closed Block (Details 1) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2012	Sep. 30, 2011 As restated and amended [Member]	Sep. 30, 2011 As restated and amended [Member]	Dec. 31, 2011 As restated and amended [Member]
Closed block revenues
Premiums	$ 89.5	$ 270.1	$ 100.5	$ 298.0
Net investment income	115.7	343.5	113.2	358.2
Net realized investment gains (losses)	7.5	9.4	(4.3)	(1.6)
Total revenues	212.7	623.0	209.4	654.6
Policy benefits, excluding dividends	120.1	364.8	143.6	415.4
Other operating expenses	1.3	3.6	1.5	4.4
Total benefits and expenses, excluding policyholder dividends	121.4	368.4	145.1	419.8
Closed block contribution to income before dividends and income taxes	91.3	254.6	64.3	234.8
Policyholder dividends	(80.9)	(221.6)	(53.6)	(198.8)
Closed block contribution to income before income taxes	10.4	33.0	10.7	36.0
Applicable income tax expense	3.6	11.5	3.8	12.6
Closed block contribution to income	6.8	21.5	7.0	23.5
Less: Closed block contribution to income attributable to noncontrolling interests	0.4	0.4	(0.2)	(0.2)
Closed block contribution to income attributable to The Phoenix Companies, Inc.	6.4	21.1	7.2	23.7
Policyholder dividend obligation
Policyholder dividends provided through earnings		221.6			258.7
Policyholder dividends provided through OCI		171.5			158.6
Additions to policyholder dividend liabilities		393.1			417.3
Policyholder dividends paid		(154.7)			(251.3)
Increase in policyholder dividend liabilities		238.4			166.0
Policyholder dividend liabilities, beginning of period		752.5		586.5	586.5
Policyholder dividend liabilities, end of period	990.9	990.9			752.5
Policyholder dividends payable, end of period	(235.1)	(235.1)			(241.0)
Policyholder dividend obligation, end of period	$ 755.8	$ 755.8			$ 511.5