Related Party Transactions (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Related Party Transaction [Line Items]
General insurance expenses	$ 24.7	$ 19.2	$ 47.2	$ 37.3
1851
Related Party Transaction [Line Items]
Commissions incurred	1.6	1.7	3.2	3.3
Service Agreements
Related Party Transaction [Line Items]
Amounts payable	7.9		7.9		4.4
Sales Agreements
Related Party Transaction [Line Items]
Commission amounts payable to related party	0.7		0.7		0.9
Sales Agreements | Phoenix Life
Related Party Transaction [Line Items]
Amounts payable	1.2		1.2		8.0
Commissions paid by related party	16.0	18.9	33.2	41.9
Sales Agreements | Saybrus
Related Party Transaction [Line Items]
Commissions paid by related party	2.4	2.7	4.8	6.0
Processing Service Agreements | Phoenix Life
Related Party Transaction [Line Items]
Due from (to) related party	(2.6)		(2.6)		2.4
Net amount due to related party	$ 0		$ 0