Related Party Transactions (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Related Party Transaction [Line Items]
General insurance expenses	$ 23.1	$ 15.9	$ 70.3	$ 53.2
Payable to related parties	12.6		12.6		11.0
1851
Related Party Transaction [Line Items]
Commissions incurred	1.6	1.6	4.8	4.9
Service Agreements
Related Party Transaction [Line Items]
Amounts payable	9.1		9.1		4.4
Sales Agreements
Related Party Transaction [Line Items]
Commission amounts payable to related party	0.8		0.8		0.9
Sales Agreements | Phoenix Life
Related Party Transaction [Line Items]
Amounts payable	1.5		1.5		8.0
Commissions paid by related party	15.2	20.1	48.4	62.0
Sales Agreements | Saybrus
Related Party Transaction [Line Items]
Commissions paid by related party	2.2	2.7	7.0	8.7
Processing Service Agreements | Phoenix Life
Related Party Transaction [Line Items]
Related Party Transaction, Due from (to) Related Party	0.7		0.7		2.4
Payable to related parties	$ 0		$ 0