Segment Results (Schedule Of Assets By Segment) (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 2,872,512	$ 2,843,531
Aerospace and Electronics
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	509,210	514,240
Engineered Materials
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	244,257	245,350
Merchandising Systems
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	431,750	408,857
Fluid Handling
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	971,884	909,265
Controls
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	39,813	64,162
Corporate
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 675,598	$ 701,657