11. Income Taxes (Details 3) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011 As restated and amended [Member]
Deferred income tax assets
Future policyholder benefits	$ 276.7	$ 190.1
Unearned premiums / deferred revenues
Investments
Net operating and capital loss carryover benefits	1.7	8.6
Other	0.2	(2.0)
Available-for-sale debt securities	16.2	29.4
Alternative minimum tax credits	1.8	2.0
Subtotal	296.6	228.1
Valuation allowance	(105.4)	(34.2)
Total deferred income tax assets, net of valuation allowance	191.2	193.9
Deferred tax liabilities
Deferred policy acquisition costs	(92.2)	(110.8)
Other	(82.8)	(53.7)
Gross deferred income tax liabilities	(175.0)	(164.5)
Net deferred income tax assets	$ 16.2	$ 29.4