Facility Consolidation Employee Termination Costs (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Sep. 30, 2015	Mar. 31, 2016	Mar. 31, 2015
Restructuring Cost and Reserve [Line Items]
Accrued termination costs, beginning		$ 3.5	$ 0.0
Charges	$ 8.0	1.1	4.6
Payments		(2.3)	$ (1.1)
Accrued termination costs, ending		2.3
Employee Severance
Restructuring Cost and Reserve [Line Items]
Charges		$ 5.7