Segment Information (Sales and PPE by Geographic Location) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 1,368.4	$ 1,266.4	$ 1,192.3
Property, Plant and Equipment, Net	711.7	669.0	593.6
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	614.5	592.8	543.6
Property, Plant and Equipment, Net	336.0	322.0	272.6
Germany [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	219.6	184.4	184.1
Property, Plant and Equipment, Net	124.4	117.2	118.1
France [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	112.6	102.6	94.2
Property, Plant and Equipment, Net	43.4	42.1	41.3
Other European Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	279.4	251.4	242.7
Property, Plant and Equipment, Net	83.2	72.3	69.9
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	142.3	135.2	127.7
Property, Plant and Equipment, Net	$ 124.7	$ 115.4	$ 91.7