7. Investing Activities (Details Narrative) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Notes to Financial Statements
Unrealized losses on below-investment-grade debt securities depressed of amortized cost, amount	$ 21.6	$ 46.5
Unrealized losses on below-investment-grade debt securities depressed of amortized cost, percentage	20.00%	20.00%
Unrealized losses on below-investment-grade debt securities depressed of amortized cost for more than 12 month, amount	21.6	42.5
Unrealized losses on below-investment-grade debt securities depressed of amortized cost for more than 12 month, percentage	20.00%	20.00%
Total debt impairments recognized	2.8	2.8	10.8
Total equity impairments recognized	0	0.4	0
Limited partnerships and other investment OTTIs	6.7	4.7
Amount of impairments recognized as adjustment to other comprehensive loss	2.2	6.9	10.1
Deposit securities fair value	2.4	7.6
Unfunded commitments related to VIEs	2.1	1.2
Fixed maturities below-investment-grade assets	182.5	147.4
Derivative assets, net of liabilities	103.7
Debt securities, fair value	30.6
Maximum amount of loss due to credit risk	$ 134.3