Accumulated Other Comprehensive Income - Schedule of Amounts Reclassified from Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Defined Benefit Plan Disclosure [Line Items]
Costs of products sold	$ (334,913)	$ (345,041)
Selling, general and administrative	(35,086)	(31,858)
Income tax provision	(6,034)	(5,068)
Net income	11,603	16,168
Reclassifications Out of Accumulated Other Comprehensive Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Net income	1,383	2,071
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Costs and Expenses	3,526	3,728
Income tax provision	(1,336)	(1,413)
Net income	2,190	2,315
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Pension Benefits [Member] | Prior Service Costs [Member]
Defined Benefit Plan Disclosure [Line Items]
Costs of products sold	526	503
Selling, general and administrative	178	171
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Pension Benefits [Member] | Actuarial Losses [Member]
Defined Benefit Plan Disclosure [Line Items]
Costs of products sold	2,108	2,281
Selling, general and administrative	714	773
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Amortization of Deferred Benefit Other Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Costs and Expenses	(188)	(96)
Income tax provision	72	38
Net income	(116)	(58)
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Amortization of Deferred Benefit Other Plans [Member] | Prior Service Costs [Member]
Defined Benefit Plan Disclosure [Line Items]
Costs of products sold	(37)	(37)
Selling, general and administrative	(8)	(8)
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Amortization of Deferred Benefit Other Plans [Member] | Actuarial Losses [Member]
Defined Benefit Plan Disclosure [Line Items]
Costs of products sold	(118)	(42)
Selling, general and administrative	(25)	(9)
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Cash Flow Hedges [Member] | Gains on Cash Flow Hedges
Defined Benefit Plan Disclosure [Line Items]
Costs of products sold	(931)	(298)
Income tax provision	240	112
Net income	$ (691)	$ (186)