CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Income (loss) from continuing operations, net of tax	$ 13,572		$ 59,124		$ 26,132		$ 63,955
Foreign currency translation adjustment	11,083		5,416		4,877		530
Net unrealized gain (loss) on marketable securities reclassified into earnings		[1]		[1]		[1]	1,168	[1]
Unrealized gain (loss) on derivative instruments held at period end, net of tax	(54)	[1]	(296)	[1]	19	[1]	(84)	[1]
Pension and postretirement actuarial net gain (loss) incurred in fiscal year	0		0		17,225		0
Other comprehensive income (loss)	11,383		7,355		25,228		5,785
Comprehensive income (loss) from continuing operations	24,955		66,479		51,360		69,740
Income (loss) from discontinued operations, net of income taxes	0		(148)		102		(333)
Comprehensive income (loss)	24,955		66,331		51,462		69,407
Amortization of loss [Member]
Pension and postretirement benefit plans reclassified into earnings, net of tax	354	[1]	2,233	[1]	2,103	[1]	4,165	[1]
Amortization of prior service cost [Member]
Pension and postretirement benefit plans reclassified into earnings, net of tax	$ 0	[1]	$ 2	[1]	$ 1,004	[1]	$ 6	[1]

[1] See Note 5 - "Accumulated Other Comprehensive Income (Loss)" for tax impacts.