Accumulated Other Comprehensive Income (Loss) - Reclassifications of Accumulated Other Comprehensive Income to Consolidated Statement of Comprehensive Income (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Schedule Of Reclassification Of Accumulated Other Comprehensive Income Loss [Line Items]
(Losses) gains on derivatives qualifying as hedges, net of tax			$ 1,161	$ (413)
Settlements/Curtailments			(75)	(874)
Prior service cost			2,197	2,109
Actuarial losses			(17,261)	(14,433)
(Losses) gains on pension and postretirement liability adjustments, net of tax	(5,088)	(4,350)	(10,220)	(8,771)
Other income (expense), net [Member] | Cross currency swap [Member]
Schedule Of Reclassification Of Accumulated Other Comprehensive Income Loss [Line Items]
(Losses) gains on derivatives qualifying as hedges			(333)	(1,373)
Cost of goods sold [Member] | Foreign currency contracts [Member]
Schedule Of Reclassification Of Accumulated Other Comprehensive Income Loss [Line Items]
(Losses) gains on derivatives qualifying as hedges			2,155	1,324
Interest expense [Member] | Interest rate swaps [Member]
Schedule Of Reclassification Of Accumulated Other Comprehensive Income Loss [Line Items]
(Losses) gains on derivatives qualifying as hedges			(68)
Provision for income taxes [Member]
Schedule Of Reclassification Of Accumulated Other Comprehensive Income Loss [Line Items]
Provision for income taxes for (Losses) gains on derivatives qualifying as hedges			(593)	(364)
Provision for income taxes for gains (Losses) on pension and postretirement liability adjustments			$ 4,919	$ 4,427