Segment Results (Schedule Of Assets By Segment) (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 3,553,345	$ 3,559,607
Engineered Materials
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	1,369,024	1,383,007
Merchandising Systems
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	515,514	511,676
Engineered Materials
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	241,591	233,214
Fluid Handling
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	998,998	996,101
Corporate
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 428,218	$ 435,609