Schedule of Level 3 Financial Liabilities (Details) (Level 3, USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012
Level 3
Level 3 Financial Liabilities:
Balance, beginning of period	$ 79.5		$ 82.3
Net purchases/(sales)	12.9		8.4
Transfers into Level 3	0		0
Transfers out of Level 3	0		0
Realized (gains) losses	(17.6)	[1]	(11.2)	[1]
Balance, end of period	$ 74.8		$ 79.5

[1] [1]Realized gains and losses are included in net realized investment gains on the statements of income and comprehensive income.