Goodwill and Other Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Goodwill
Balance at the beginning of the period	$ 127.4	$ 115.9
Current period additions	5.1	9.2
Current period adjustments	(0.1)	0.8
Foreign currency impact	(4.6)	1.5
Balance at the end of the period	127.8	127.4
Impairment	0	0
BSI | CAM division
Goodwill
Balance at the end of the period	0
Impairment			$ 1.4