CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
CONSOLIDATED STATEMENTS OF INCOME [Abstract]
Net sales	$ 180,307	$ 186,654
Cost of goods sold	105,498	113,885
Gross profit	74,809	72,769
Selling, general, and administrative expenses	39,157	36,553
Technical, product engineering, and research expenses	13,869	13,062
Restructuring and other, net	1,182	636
Operating income	20,601	22,518
Interest expense, net	2,918	4,025
Other (income)/expenses, net	(467)	734
Income before income taxes	18,150	17,759
Income tax expense	7,457	6,248
Income from continuing operations	10,693	11,511
(Loss)/income from operations of discontinued business
Gain/(loss) on sale of discontinued business
Income tax (benefit)/expense on discontinued operations
(Loss)/income from discontinued operations
Net income	10,693	11,511
Net income attributable to the noncontrolling interest	72
Net income attributable to the Company	$ 10,621	$ 11,511
Earnings per share attributable to Company shareholders - Basic
Income from continuing operations	$ 0.33	$ 0.37
Discontinued operations	$ 0.00	$ 0.00
Net income attributable to the Company	$ 0.33	$ 0.37
Earnings per share attributable to Company shareholders - Diluted
Income from continuing operations	$ 0.33	$ 0.36
Discontinued operations	$ 0.00	$ 0.00
Net income attributable to the Company	$ 0.33	$ 0.36
Shares of the Company used in computing earnings per share:
Basic	31,786	31,496
Diluted	32,051	31,782
Dividends per share	$ 0.15	$ 0.14