Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013	Sep. 30, 2014		Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance				$ 172,119	[1]
Before reclassifications to income				(195,068)	[1]
Reclassifications to income				5,140	[1]
Net other comprehensive income (loss)	(190,340)		96,827	(189,928)	[1]	(129,941)
Ending Balance	(17,809)	[1]		(17,809)	[1]
Reclassifications before taxes, included in net periodic benefit expense				5,637
Reclassifications income tax, included in net periodic benefit expense				1,947
Reclassifications before taxes, included in interest expense				2,222
Reclassifications income tax, included in interest expense				772
Foreign Currency Translation Gains (Losses) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance				305,192	[1]
Before reclassifications to income				(195,374)	[1]
Net other comprehensive income (loss)				(195,374)	[1]
Ending Balance	109,818	[1]		109,818	[1]
Retirement and Postretirement Benefit Plan Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance				(116,956)	[1]
Before reclassifications to income				306	[1]
Reclassifications to income				3,690	[1],[2]
Net other comprehensive income (loss)				3,996	[1]
Ending Balance	(112,960)	[1]		(112,960)	[1]
Deferred Loss On Interest Rate Derivative Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance				(16,117)	[1]
Reclassifications to income				1,450	[1],[3]
Net other comprehensive income (loss)				1,450	[1]
Ending Balance	$ (14,667)	[1]		$ (14,667)	[1]

[1] All amounts are presented net of income taxes.

[2] Reclassifications before taxes of $5,637 for the nine-month period ended September 30, 2014 are included in the computation of net periodic benefit expense. See Note G for additional information. Related income taxes of $1,947 for the nine-month period ended September 30, 2014 are included in Income tax expense.

[3] Reclassifications before taxes of $2,222 for the nine-month period ended September 30, 2014 are included in Interest expense. Related income taxes of $772 for the nine-month period ended September 30, 2014 are included in Income tax expense.