Accumulated Other Comprehensive Income (Loss) - Reclassifications of Accumulated Other Comprehensive Income to Consolidated Statement of Comprehensive Income (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Schedule Of Reclassification Of Accumulated Other Comprehensive Income Loss [Line Items]
(Losses) gains on derivatives qualifying as hedges, net of tax				$ 5,095	$ 4,446
Prior service cost	[1]			3,735	2,318
Actuarial losses	[1]			(10,347)	(18,102)
(Losses) gains on pension and postretirement liability adjustments, net of tax		$ (2,578)	$ (5,476)	(5,133)	(11,023)
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				6,117	5,239
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				(257)	(138)
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				(765)	(655)
Provision for income taxes for gains (Losses) on pension and postretirement liability adjustments				$ 1,479	$ 4,761

[1] The amortization of prior service cost and actuarial loss is included in the computation of net periodic benefit cost. Refer to Note 14 of our 2015 Form 10-K for additional information regarding net periodic benefit cost.