3. Fair Value and Gross Unrealized Losses with Unrealized Losses (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Tolerable variance Level 2 debt security pricing	1.00%
Fair Value of Investments with Gross Unrealized Losses in loss position 12 months or more	$ 13.2	$ 2.3
Gross unrealized losses for investments in a loss position 12 months or more	0.2	0.1
Gross unrealized losses for investments in a loss position less than 12 months	0.1	0.8
Cost Method Investment, Percentage Owned	35.00%
Fair Value of Investments with Gross Unrealized Losses in loss position less than 12 months	$ 31.3	$ 73.9