Restructuring (Summary of Restructuring Charges) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jun. 30, 2012
Restructuring Cost and Reserve [Line Items]
Severance	$ 11.6
Asset Write- down	2.1
Other	0.1
Total	13.8
Engineered Materials
Restructuring Cost and Reserve [Line Items]
Severance	0.1
Asset Write- down	1.6
Total	1.7
Merchandising Systems
Restructuring Cost and Reserve [Line Items]
Severance	0.7
Total	0.7
Fluid Handling
Restructuring Cost and Reserve [Line Items]
Severance	10.8
Asset Write- down	0.5
Other	0.1
Total	$ 11.4