CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
CONSOLIDATED STATEMENTS OF INCOME [Abstract]
Net sales	$ 183,147	$ 194,589	$ 567,775	$ 566,606
Cost of goods sold	115,146	114,938	349,572	340,169
Gross profit	68,001	79,651	218,203	226,437
Selling, general, and administrative expenses	39,143	41,166	117,690	125,335
Technical, product engineering, and research expenses	13,347	12,634	41,040	39,019
Restructuring and other, net	2,256	2,739	27,213	6,149
Pension settlement expense				119,735
Operating income/(loss)	13,255	23,112	32,260	(63,801)
Interest expense, net	3,484	3,997	11,056	12,610
Other expense/(income), net	2,692	3,069	5,637	5,062
Income/(loss) before income taxes	7,079	16,046	15,567	(81,473)
Income tax expense/(benefit)	2,381	6,965	6,386	(32,650)
Income/(loss) from continuing operations	4,698	9,081	9,181	(48,823)
(Loss)/income from operations of discontinued business			(575)	4,776
Gain/(loss) on sale of discontinued business		(301)		92,376
Income tax (benefit)/expense on discontinued operations		(683)	(224)	25,570
(Loss)/income from discontinued operations		382	(351)	71,582
Net income	$ 4,698	$ 9,463	$ 8,830	$ 22,759
Earnings per share - Basic
Income/(loss) from continuing operations	$ 0.15	$ 0.29	$ 0.29	$ (1.56)
Discontinued operations	$ 0.00	$ 0.01	$ (0.01)	$ 2.29
Net income	$ 0.15	$ 0.30	$ 0.28	$ 0.73
Earnings per share - Diluted
Income/(loss) from continuing operations	$ 0.15	$ 0.29	$ 0.29	$ (1.55)
Discontinued operations	$ 0.00	$ 0.01	$ (0.01)	$ 2.27
Net income	$ 0.15	$ 0.30	$ 0.28	$ 0.72
Shares used in computing earnings per share:
Basic	31,719	31,363	31,615	31,340
Diluted	32,010	31,550	31,913	31,550
Dividends per share	$ 0.15	$ 0.14	$ 0.44	$ 0.41