Segment Information (Sales and PPE by Geographic Location) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 1,399.8	$ 1,421.4	$ 1,368.4
Property, Plant and Equipment, Net	721.0	705.8	711.7
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	667.4	630.7	588.7
Property, Plant and Equipment, Net	332.3	327.5	324.7
Germany [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	194.0	219.4	219.6
Property, Plant and Equipment, Net	102.9	110.9	124.4
France [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	107.6	118.2	112.6
Property, Plant and Equipment, Net	38.6	40.4	43.4
Other European Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	252.0	285.0	279.3
Property, Plant and Equipment, Net	117.6	91.5	83.2
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	178.8	168.1	168.2
Property, Plant and Equipment, Net	$ 129.6	$ 135.5	$ 136.0