Fair Value Measurements (Details 2) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Estimate of Fair Value Measurement [Member]
Asset Category
Money market accounts	$ 36.2	$ 15.4
Available for sale equity securities	6.9	2.3
Derivatives	1.2
Total	44.3	17.7
Liability Category
Long term contingent consideration	70.2	63.9
Derivatives	66.7	0.1
Total	136.9	64.0
Fair Value, Inputs, Level 1 [Member]
Asset Category
Money market accounts	36.2	15.4
Available for sale equity securities	6.2	1.5
Derivatives	0.0
Total	42.4	16.9
Liability Category
Long term contingent consideration	0.0	0.0
Derivatives	0.0	0.0
Total	0.0	0.0
Fair Value, Inputs, Level 2 [Member]
Asset Category
Money market accounts	0.0	0.0
Available for sale equity securities	0.7	0.8
Derivatives	1.2
Total	1.9	0.8
Liability Category
Long term contingent consideration	0.0	0.0
Derivatives	18.6	0.1
Total	18.6	0.1
Fair Value, Inputs, Level 3 [Member]
Asset Category
Money market accounts	0.0	0.0
Available for sale equity securities	0.0	0.0
Derivatives	0.0
Total	0.0	0.0
Liability Category
Long term contingent consideration	70.2	63.9
Derivatives	48.1	0.0
Total	$ 118.3	$ 63.9