Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Segment Information [Abstract]
Number of reportable segments			2
Net sales [Abstract]
Net sales	$ 846,273	$ 900,218	$ 2,609,365	$ 2,702,240
Operating income (loss) from continuing operations [Abstract]
Consolidated operating income (loss)	(1,936)	19,259	6,893	59,795
Technology Products [Member]
Net sales [Abstract]
Net sales	734,693	812,326	2,302,168	2,463,334
Operating income (loss) from continuing operations [Abstract]
Consolidated operating income (loss)	(3,882)	13,552	1,550	50,234
Industrial Products [Member]
Net sales [Abstract]
Net sales	110,352	86,977	303,582	236,577
Operating income (loss) from continuing operations [Abstract]
Consolidated operating income (loss)	7,636	10,424	22,954	26,477
Corporate and Other [Member]
Net sales [Abstract]
Net sales	1,228	915	3,615	2,329
Operating income (loss) from continuing operations [Abstract]
Consolidated operating income (loss)	$ (5,690)	$ (4,717)	$ (17,611)	$ (16,916)