Restructuring Activities - Restructuring Activities (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Restructuring Cost And Reserve [Line Items]
Other associated costs	$ 4.1
Restructuring charges	6.1	(0.2)
Total	10.2
IOP [Member]
Restructuring Cost And Reserve [Line Items]
Other associated costs	1.4	5.3
Restructuring charges	1.3	(0.2)
Total	2.7	5.1
EQIP [Member]
Restructuring Cost And Reserve [Line Items]
Other associated costs	2.7
Restructuring charges	4.8
Total	$ 7.5