Segment Results (Summary Of Financial Information By Reportable Segment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Mar. 31, 2011
Segment Reporting Information [Line Items]
Revenues	$ 604,356		$ 531,853
Operating income	79,792		86,823
Interest expense	3,834		5,347
Other income, net	(1,223)		(962)
Consolidated income before income taxes	77,181		82,438
Industrial Products Group [Member]
Segment Reporting Information [Line Items]
Revenues	325,827		286,210
Operating income	15,539	[1]	30,802	[1]
Operating income as a percentage of revenues	4.80%		10.80%
Engineered Products Group [Member]
Segment Reporting Information [Line Items]
Revenues	278,529		245,643
Operating income	$ 64,253		$ 56,021
Operating income as a percentage of revenues	23.10%		22.80%

[1] See Note 3 "Restructuring."