Restructuring (Schedule Of Restructuring Charges By Reportable Segment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				12 Months Ended		27 Months Ended
	Mar. 31, 2012		Mar. 31, 2011		Dec. 31, 2011	Dec. 31, 2010	Mar. 31, 2012
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 14,415	[1]	$ 980	[1]	$ 8,584	$ 2,196	$ 25,195
Industrial Products Group [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	12,103				6,621	3,687	22,411
Engineered Products Group [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 2,312				$ 1,963	$ (1,491)	$ 2,784

[1] See Note 3 "Restructuring."