Consolidated Statements of Operations and Retained Earnings (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Statements of Operations
Net sales	$ 814,696	$ 765,769	$ 737,621
Cost of goods sold	485,735	471,006	484,335
Gross profit	328,961	294,763	253,286
Selling and general expenses	179,804	165,528	168,709
Technical, product engineering, and research expenses	56,767	54,203	52,529
Restructuring and other	9,317	3,747	68,174
Operating income/(loss)	83,073	71,285	(36,126)
Interest income	(2,027)	(1,165)	(741)
Interest expense	20,148	18,405	21,368
Other expense/(income), net	2,720	(884)	(49,700)
Income/(loss) before income taxes	62,232	54,929	(7,053)
Income tax expense	35,779	23,545	14,440
Income/(loss) before equity in earnings of associated companies	26,453	31,384	(21,493)
Equity in earnings of associated companies	81	92	32
Income/(loss) from continuing operations	26,534	31,476	(21,461)
(Loss)/income from discontinued operations	15,636	9,497	(12,061)
Income tax expense/(benefit)	7,232	3,337	(64)
Income/(loss) from discontinued operations	8,404	6,160	(11,997)
Net income/(loss)	34,938	37,636	(33,458)
Retained earnings
Retained earnings, beginning of year	403,048	380,335	428,497
Less dividends declared	(15,942)	(14,923)	(14,704)
Retained earnings, end of year	$ 422,044	$ 403,048	$ 380,335
Earnings per share - Basic
Income/(Loss) from continuing operations	$ 0.85	$ 1.01	$ (0.7)
Discontinued operations	$ 0.27	$ 0.2	$ (0.39)
Net Income/(loss)	$ 1.12	$ 1.21	$ (1.09)
Earnings per share - Diluted
Income/(Loss) from continuing operations	$ 0.84	$ 1.01	$ (0.7)
Discontinued operations	$ 0.27	$ 0.2	$ (0.39)
Net Income/(loss)	$ 1.11	$ 1.21	$ (1.09)
Dividends declared per share	$ 0.51	$ 0.48	$ 0.48