CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Divestiture of businesses, tax		$ 14,611
Foreign Currency
Foreign currency translation, tax	1,210	(161)	(1,910)
Defined Benefit Pension and Other Postretirement Plans
Prior service cost recognized in net periodic cost, tax	(8)	(9)	(10)
Transition obligation recognized in net periodic cost, tax	35	42	41
Unamortized gain arising during the period, tax	2,285	(28,841)	(2,207)
Net loss recognized in net periodic cost, tax	2,537	1,399	1,434
Settlement, tax	40	(2)	(17)
Curtailment, tax	(44)
Discontinued operations, tax			(262)
Divestiture of businesses, tax		4,865
Foreign currency translation, tax	(58)	(20)	151
Comprehensive Income Derivatives Qualifying As Hedges
Unrealized gain (loss) on derivatives arising during the period, tax	102	(830)	(4,472)
Reclassification adjustment on derivatives included in net income, tax	3,832	5,757	5,668
Discontinued operations, tax		$ (39)	$ 24