Segment Results (Schedule Of Assets By Segment) (Details) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 2,734,189	$ 2,706,697
Aerospace And Electronics [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	519,532	498,775
Engineered Materials [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	255,591	255,340
Merchandising Systems [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	430,954	419,704
Fluid Handling [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	929,951	829,523
Controls [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	65,444	66,744
Corporate [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 532,717	$ 636,611