CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Net sales	$ 191,940	$ 189,681	$ 372,017	$ 389,635
Cost of goods sold	113,440	115,741	225,231	230,507
Gross profit	78,500	73,940	146,786	159,128
Selling, general, and administrative expenses	37,146	45,403	84,169	91,370
Technical, product engineering, and research expenses	13,646	14,326	26,385	28,439
Restructuring and other, net	3,152	1,731	3,410	1,765
Pension settlement expense	110,560		119,735
Operating (loss)/income	(86,004)	12,480	(86,913)	37,554
Interest expense, net	3,969	4,786	8,613	9,562
Other (income)/expense, net	(2,555)	7	1,993	4,820
(Loss)/income before income taxes	(87,418)	7,687	(97,519)	23,172
Income tax (benefit)/expense	(29,643)	3,139	(39,615)	6,406
(Loss)/income from continuing operations	(57,775)	4,548	(57,904)	16,766
Income from operations of discontinued business	2,760	6,434	4,776	12,991
Gain on sale of discontinued business	34,709		92,677
Income taxes on discontinued operations	13,439	2,220	26,253	4,262
Income from discontinued operations	24,030	4,214	71,200	8,729
Net (loss)/income	$ (33,745)	$ 8,762	$ 13,296	$ 25,495
Earnings per share - Basic
(Loss)/income from continuing operations	$ (1.84)	$ 0.15	$ (1.85)	$ 0.54
Discontinued operations	$ 0.76	$ 0.13	$ 2.27	$ 0.28
Net (loss)/income	$ (1.08)	$ 0.28	$ 0.42	$ 0.82
Earnings per share - Diluted
(Loss)/income from continuing operations	$ (1.84)	$ 0.14	$ (1.84)	$ 0.53
Discontinued operations	$ 0.76	$ 0.14	$ 2.26	$ 0.28
Net (loss)/income	$ (1.08)	$ 0.28	$ 0.42	$ 0.81
Shares used in computing earnings per share:
Basic	31,349	31,263	31,329	31,243
Diluted	31,349	31,489	31,518	31,455
Dividends per share	$ 0.14	$ 0.12	$ 0.27	$ 0.25