Segment Results (Schedule Of Assets By Segment) (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 2,872,400	$ 2,889,878
Aerospace and Electronics
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	508,679	509,672
Engineered Materials
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	241,043	237,478
Merchandising Systems
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	405,220	408,702
Fluid Handling
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	942,869	993,275
Corporate
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 774,589	$ 740,751