CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net income (loss)	$ 17,855	$ 11,986	$ (5,234)
Other comprehensive (loss) income:
Foreign currency translation adjustment	3,803	(1,436)	10,905
Retirement plans related adjustment	(8,326)	(21,750)	(10,697)
Unrealized gain (loss) on cash flow hedges	651	(533)	(90)
Other comprehensive (loss) income before tax	(3,872)	(23,719)	118
Income tax (benefit) expense	(496)	(607)	(968)
Other comprehensive (loss) income, net of tax	(3,376)	(23,112)	1,086
Total comprehensive income (loss)	$ 14,479	$ (11,126)	$ (4,148)