CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Net sales	$ 197,974	$ 191,940	$ 384,628	$ 372,017
Cost of goods sold	120,541	113,440	234,426	225,231
Gross profit	77,433	78,500	150,202	146,786
Selling, general, and administrative expenses	41,994	37,146	78,547	84,169
Technical, product engineering, and research expenses	14,631	13,646	27,693	26,385
Restructuring and other, net	24,321	3,152	24,957	3,410
Pension settlement expense		110,560		119,735
Operating income/(loss)	(3,513)	(86,004)	19,005	(86,913)
Interest expense, net	3,547	3,969	7,572	8,613
Other expense/(income), net	2,211	(2,555)	2,945	1,993
Income/(loss) before income taxes	(9,271)	(87,418)	8,488	(97,519)
Income tax expense/(benefit)	(2,243)	(29,643)	4,005	(39,615)
Income/(loss) from continuing operations	(7,028)	(57,775)	4,483	(57,904)
(Loss)/income from operations of discontinued business	(575)	2,760	(575)	4,776
Gain on sale of discontinued business		34,709		92,677
Income tax (benefit)/expense on discontinued operations	(224)	13,439	(224)	26,253
(Loss)/income from discontinued operations	(351)	24,030	(351)	71,200
Net income/(loss)	$ (7,379)	$ (33,745)	$ 4,132	$ 13,296
Earnings per share - Basic
Income/(loss) from continuing operations	$ (0.22)	$ (1.84)	$ 0.14	$ (1.85)
Discontinued operations	$ (0.01)	$ 0.76	$ (0.01)	$ 2.27
Net income/(loss)	$ (0.23)	$ (1.08)	$ 0.13	$ 0.42
Earnings per share - Diluted
Income/(loss) from continuing operations	$ (0.22)	$ (1.84)	$ 0.14	$ (1.84)
Discontinued operations	$ (0.01)	$ 0.76	$ (0.01)	$ 2.26
Net income/(loss)	$ (0.23)	$ (1.08)	$ 0.13	$ 0.42
Shares used in computing earnings per share:
Basic	31,628	31,349	31,562	31,329
Diluted	31,628	31,349	31,856	31,518
Dividends per share	$ 0.15	$ 0.14	$ 0.29	$ 0.27