Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012		Dec. 31, 2011
Consolidated Statements of Income [Abstract]
Net sales	$ 757,414	$ 760,941		$ 787,287
Cost of goods sold	466,860	455,545		473,121
Gross profit	290,554	305,396		314,166
Selling, general and administrative expenses	157,688	169,774		174,395
Technical, product engineering, and research expenses	55,667	52,962		55,846
Restructuring and other, net	25,108	7,061		9,317
Pension settlement expense		119,735
Operating income/(loss)	52,091	(44,136)		74,608
Interest income	(1,468)	(1,517)		(2,027)
Interest expense	15,227	18,118		20,148
Other expense/(income), net	7,256	7,629		2,639
Income/(loss) before income taxes	31,076	(68,366)		53,848
Income tax expense/(benefit)	13,372	(27,523)		32,582
Income/(loss) from continuing operations	17,704	(40,843)		21,266
(Loss)/income from operations of discontinued businesses	(75)	4,776		24,101
Gain/(loss) on sale of discontinued businesses		92,296
Income tax (benefit)/expense on discontinued operations	(29)	25,252		10,429
(Loss)/income from discontinued operations	(46)	71,820		13,672
Net income	17,658	30,977		34,938
Net income attributable to the noncontrolling interest	141
Net income attributable to the Company	$ 17,517	$ 30,977		$ 34,938
Earnings per share attributable to Company shareholders - Basic
Income/(loss) from continuing operations	$ 0.55	$ (1.30)		$ 0.68
Discontinued operations	$ 0.00	$ 2.29		$ 0.44
Net Income attributable to Company shareholders	$ 0.55	$ 0.99		$ 1.12
Earnings per share attributable to Company shareholders - Diluted
Income/(loss) from continuing operations	$ 0.55	$ (1.30)		$ 0.67
Discontinued operations	$ 0.00	$ 2.27		$ 0.44
Net Income attributable to Company shareholders	$ 0.55	$ 0.97	[1]	$ 1.11
Dividends declared per share	$ 0.59	$ 0.55		$ 0.51

[1] Due to a loss from continuing operations in 2012, the calculation of diluted income per share cannot be calculated by dividing net income by the diluted shares in the table above. See Statement of Income.