Statutory Accounting (Details 1) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012
The reported statutory surplus, net income (loss) and amount of dividends available for distribution
Available for Distribution	$ 124.9
U.S. Insurance [Member]
The reported statutory surplus, net income (loss) and amount of dividends available for distribution
Reported Capital & Surplus	94.0
Reported Statutory Net Income (Loss)	(4.1)
Available for Distribution	9.4
ASCIC [Member]
The reported statutory surplus, net income (loss) and amount of dividends available for distribution
Reported Capital & Surplus	78.9
ASCIC [Member] | U.S. Insurance [Member]
The reported statutory surplus, net income (loss) and amount of dividends available for distribution
Reported Capital & Surplus	78.9
Reported Statutory Net Income (Loss)	(1.8)
Available for Distribution	7.9
ASIC [Member] | U.S. Insurance [Member]
The reported statutory surplus, net income (loss) and amount of dividends available for distribution
Reported Capital & Surplus	15.1
Reported Statutory Net Income (Loss)	(2.3)
Available for Distribution	$ 1.5