3. Fair Value and Gross Unrealized Losses with Unrealized Losses (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 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	$ 12.6	$ 2.3
Cost Method Investment, Percentage Owned	35.00%
Fair Value of Investments with Gross Unrealized Losses in loss position less than 12 months	56.8	73.9
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0.2	0.1
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ 0.3	$ 0.8