Restructuring and Relocation Activities - Restructuring Activities (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Restructuring Cost And Reserve [Line Items]
Other associated costs	$ 10.6	$ 9.4	$ 19.2	$ 14.4
Restructuring charges	16.9	14.1	29.6	20.2
Total	27.5	23.5	48.8	34.6
IOP [Member]
Restructuring Cost And Reserve [Line Items]
Other associated costs	1.0	0.6	2.9	2.0
Restructuring charges	0.3	4.2		5.5
Total	1.3	4.8	2.9	7.5
EQIP [Member]
Restructuring Cost And Reserve [Line Items]
Other associated costs	2.5	8.8	6.2	12.4
Restructuring charges	1.3	9.9	(5.6)	14.7
Total	3.8	$ 18.7	0.6	$ 27.1
FUSION [Member]
Restructuring Cost And Reserve [Line Items]
Other associated costs	7.1		10.1
Restructuring charges	15.3		35.2
Total	$ 22.4		$ 45.3