Acquisition - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	0 Months Ended	12 Months Ended	3 Months Ended
	Jun. 28, 2011 La Barge	Dec. 31, 2011 La Barge	Apr. 02, 2011 Foam Matrix
Business Acquisition [Line Items]
Business acquired, net of cash acquired and excluding acquisition costs	$ 325.3
Acquisition funded of debt	390.0
Acquisition expenses		16.1
Unamortized financing cost write off		0.8
Assets acquired			$ 0.4