Consolidated Statements of Comprehensive (Loss) Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (7,578)	$ 1,479	$ (6,682)	$ 3,784
Other comprehensive (loss) income:
Foreign currency translation adjustments	(6,368)	6,969	(5,985)	2,319
Retirement plans related adjustments	1,336	(500)	1,570	1,428
Unrealized gain (loss) on cash flow hedges	13	344	(78)	246
Other comprehensive (loss) income before tax	(5,019)	6,813	(4,493)	3,993
Income tax expense (benefit)	927	(196)	750	138
Other comprehensive (loss) income, net of tax	(5,946)	7,009	(5,243)	3,855
Total comprehensive (loss) income	$ (13,524)	$ 8,488	$ (11,925)	$ 7,639