Fair Value Measurements (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	$ 5.8	$ 4.6	$ 3.7
Adjustment to contingent consideration fair value	0.2	3.2	20.5
Foreign Currency Transaction Gain, before Tax	(0.4)
Assets, Fair Value Disclosure [Abstract]
Available for sale securities	5.8
Fair Value, Measurements, Recurring
Assets, Fair Value Disclosure [Abstract]
Available for sale securities	5.8	4.6
Trading securities	2.3	2.3
Contingent Consideration, Liability	0.0	0.2	$ 3.8
Total		0.2
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets, Fair Value Disclosure [Abstract]
Available for sale securities	0.0	0.0
Trading securities	2.3	2.3
Total		0.0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2
Assets, Fair Value Disclosure [Abstract]
Available for sale securities	0.0	0.0
Trading securities	0.0	0.0
Total		0.0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Assets, Fair Value Disclosure [Abstract]
Available for sale securities	5.8	4.6
Trading securities	0.0	0.0
Total		0.2
Senior Secured Notes Maturing 2017 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes Payable, Fair Value Disclosure	$ 366.2	$ 371.0