CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
CONSOLIDATED STATEMENTS OF INCOME [Abstract]
Net sales	$ 194,589	$ 200,252	$ 566,606	$ 589,887
Cost of goods sold	114,938	122,190	340,169	352,697
Gross profit	79,651	78,062	226,437	237,190
Selling, general, and administrative expenses	41,166	35,947	125,335	127,317
Technical, product engineering, and research expenses	12,634	12,666	39,019	41,105
Restructuring and other, net	2,739	2,691	6,149	4,456
Pension settlement expense			119,735
Operating income/(loss)	23,112	26,758	(63,801)	64,312
Interest expense, net	3,997	4,377	12,610	13,939
Other expense/(income), net	3,069	(9)	5,062	4,811
Income/(loss) before income taxes	16,046	22,390	(81,473)	45,562
Income tax expense/(benefit)	6,965	7,897	(32,650)	14,303
Income/(loss) from continuing operations	9,081	14,493	(48,823)	31,259
Income from operations of discontinued business		3,316	4,776	16,307
(Loss)/gain on sale of discontinued business	(301)		92,376
Income tax (benefit)/expense on discontinued operations	(683)	1,135	25,570	5,397
Income from discontinued operations	382	2,181	71,582	10,910
Net income	$ 9,463	$ 16,674	$ 22,759	$ 42,169
Earnings per share - Basic
Income/(loss) from continuing operations	$ 0.29	$ 0.46	$ (1.56)	$ 1.0
Discontinued operations	$ 0.01	$ 0.07	$ 2.29	$ 0.35
Net income	$ 0.3	$ 0.53	$ 0.73	$ 1.35
Earnings per share - Diluted
Income/(loss) from continuing operations	$ 0.29	$ 0.46	$ (1.55)	$ 0.99
Discontinued operations	$ 0.01	$ 0.07	$ 2.27	$ 0.35
Net income	$ 0.3	$ 0.53	$ 0.72	$ 1.34
Shares used in computing earnings per share:
Basic	31,363	31,278	31,340	31,255
Diluted	31,550	31,462	31,550	31,476
Dividends per share	$ 0.14	$ 0.13	$ 0.41	$ 0.38