Fair Value Measurements Unobservable Inputs Rollforward (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2013
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Foreign Currency Transaction Gain, before Tax	$ (0.4)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	4.6	$ 3.7
Included in other comprehensive income	1.2	0.9
Ending balance	5.8	4.6
Fair Value, Measurements, Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Contingent Consideration, Liability	0.0	$ 0.2	$ 3.8
Long-Term Liability [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Contingent Consideration, Liability	$ 0.0			$ 24.3