Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
(Benefit from) provision for income taxes, discontinued operations	$ (4.5)	$ 6.2	$ 15.6
Valuation allowance	2.0	2.8
Operating loss carryforward	10.6	11.5
State [Member]
Operating loss carryforward	6.9
Operating loss caryforwards, expiration dates	may be carried forward between 5 and 20 years
Foreign [Member]
Operating loss carryforward	$ 3.7
Operating loss caryforwards, expiration dates	begin to expire in 2015