CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement of Comprehensive Income [Abstract]
Income from continuing operations, net of tax	$ 10,902	$ 5,583	$ 25,482	$ 12,560
Foreign currency translation adjustment	(1,403)	3,192	(1,730)	(6,206)
Derivative instruments designated as cash flow hedges:
Unrealized gain (loss) on derivative instruments held at period end, net of tax	13	82	(167)	73
Unrealized gain (loss) reclassified into earnings	(1)	0	209
Pension and postretirement actuarial net gain (loss) incurred in fiscal year	0	17,225	0	17,225
Pension and postretirement benefit plans reclassified into earnings, net of tax
Amortization of loss	124	735	263	1,749
Amortization of prior service cost	0	982	0	1,004
Other comprehensive income (loss)	(1,267)	22,216	(1,425)	13,845
Comprehensive income (loss) from continuing operations	9,635	27,799	24,057	26,405
Income (loss) from discontinued operations, net of income taxes	0	(18)	0	102
Comprehensive income (loss)	$ 9,635	$ 27,781	$ 24,057	$ 26,507