Stockholders Equity (Amounts Reclassified out of Accumulated Other Comprehensive Income) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	$ 163,847		$ 148,387		$ 305,089		$ 298,178
Interest expense	1,950		1,148		3,404		2,452
Income from continuing operations before income tax provision	6,296		(7,243)		8,385		(13,080)
Income tax benefit	2,672		(2,096)		3,237		(3,511)
Total reclassifications for the period	3,624		(5,147)		5,148		(9,569)
Reclassification out of Accumulated Other Comprehensive Income
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications for the period	288		487		626		1,078
Reclassification out of Accumulated Other Comprehensive Income | Loss (gain) on cash flow hedging
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Income from continuing operations before income tax provision	264		201		540		443
Income tax benefit	91		77		187		170
Total reclassifications for the period	173		124		353		273
Reclassification out of Accumulated Other Comprehensive Income | Loss (gain) on cash flow hedging | Foreign exchange contracts
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	(114)		(27)		(202)		(17)
Reclassification out of Accumulated Other Comprehensive Income | Loss (gain) on cash flow hedging | Interest rate contracts
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	378		228		742		460
Reclassification out of Accumulated Other Comprehensive Income | Pension and Postretirement Plan
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Actuarial loss	209	[1]	682	[1]	469	[1]	1,313	[1]
Prior-service credit	(17)	[1]	(55)	[1]	(36)	[1]	(100)	[1]
Income from continuing operations before income tax provision	192		627		433		1,213
Income tax benefit	77		264		160		408
Total reclassifications for the period	$ 115		$ 363		$ 273		$ 805

[1] These AOCI components are included in the computation of pension and postretirement health care (income) expense. See Note 10 for further discussion.