CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net sales	$ 139,375	$ 135,467	$ 414,847	$ 420,478
Cost of products sold (excluding depreciation)	93,001	98,544	279,473	294,826
Depreciation and amortization	7,347	6,756	21,399	19,711
Selling, general and administrative expenses	19,362	23,874	56,279	66,644
Research and development expenses	1,614	1,941	4,476	6,209
Restructuring (Note 1)	(87)	7,958	(129)	7,958
Litigation and other contingencies	266		266	(19)
Total costs and expenses	121,503	139,073	361,764	395,329
Income (loss) from operations	17,872	(3,606)	53,083	25,149
Interest income	3	3	139	32
Interest expense	(122)	(4)	(428)	(23)
Other expense-net	(395)	(1,042)	(1,564)	(1,806)
Income (loss) before income tax provision (benefit)	17,358	(4,649)	51,230	23,352
Income tax provision (benefit)	5,473	(196)	16,561	9,183
Net income (loss)	11,885	(4,453)	34,669	14,169
Other comprehensive income (loss), net of tax (Note 5)
Foreign currency translation	4,551	3,797	(967)	1,454
Derivatives	(391)	(17)	168	564
Employee benefit plans	425	(39)	1,759	(1,071)
Comprehensive income (loss)	$ 16,470	$ (712)	$ 35,629	$ 15,116
Net income (loss) per common share
Basic (in dollars per share)	$ 0.22	$ (0.08)	$ 0.64	$ 0.25
Diluted (in dollars per share)	$ 0.22	$ (0.08)	$ 0.64	$ 0.25
Weighted average shares outstanding
Basic (in shares)	53,900,119	56,682,153	53,774,268	56,611,496
Diluted (in shares)	54,763,796	57,197,419	54,506,378	57,170,842