Restructuring and Relocation Activities - Restructuring Activities (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Restructuring Cost And Reserve [Line Items]
Other associated costs	$ 13.0	$ 8.4	$ 32.2	$ 22.8
Restructuring charges	38.4	11.4	68.0	31.6
Total	51.4	19.8	100.2	54.4
IOP [Member]
Restructuring Cost And Reserve [Line Items]
Other associated costs	0.9	2.6	3.8	4.6
Restructuring charges	(0.3)	7.3	(0.3)	12.8
Total	0.6	9.9	3.5	17.4
EQIP [Member]
Restructuring Cost And Reserve [Line Items]
Other associated costs	0.7	5.8	6.9	18.2
Restructuring charges	3.2	4.1	(2.4)	18.8
Total	3.9	$ 9.9	4.5	$ 37.0
FUSION [Member]
Restructuring Cost And Reserve [Line Items]
Other associated costs	11.4		21.5
Restructuring charges	35.5		70.7
Total	$ 46.9		$ 92.2