CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Income (Loss) from Continuing Operations Attributable to Parent	$ 6,976	$ (1,586)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(9,398)	5,971
Unrealized loss on marketable securities, net of tax		1,168
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	(9)	255
Other Comprehensive Income (Loss)	(8,370)	8,861
Comprehensive Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	(1,394)	7,275
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	120	(222)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	(1,274)	7,053
Amortization of gain (loss) [Member]
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax, Portion Attributable to Parent	1,014	1,464
Amortization of prior service credit (cost) [Member]
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax, Portion Attributable to Parent	$ 23	$ 3