Accumulated Other Comprehensive Income (Loss) - Summary of Amounts Reclassifications Out of Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Income Before Provision for Income Taxes		$ 37,063	$ 39,196	$ 81,393	$ 79,664
Tax benefit	[1]	(9,167)	(10,695)	(21,585)	(23,244)
Interest, net		(2,863)	(3,417)	(5,855)	(7,031)
Cost of Sales		405,135	361,672	781,306	714,070
Defined Benefit Pension Plan Adjustments [Member] | Amounts Reclassified From Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Amortization of defined benefit pension actuarial losses	[2],[3]	(883)	(902)	(1,763)	(1,804)
Tax benefit	[2]	316	337	631	675
Income applicable to common stock	[2]	(567)	(565)	(1,132)	(1,129)
Cash Flow Hedge Adjustments [Member] | Amounts Reclassified From Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Income Before Provision for Income Taxes	[2]	3	(5)	5	(9)
Tax benefit	[2]		2		4
Income applicable to common stock	[2]	3	(3)	5	(5)
Cash Flow Hedge Adjustments [Member] | Interest rate contracts [Member] | Amounts Reclassified From Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Interest, net	[2]		(7)		(13)
Cash Flow Hedge Adjustments [Member] | Foreign exchange contracts [Member] | Amounts Reclassified From Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Cost of Sales	[2]	3	2	5	4
AOCI Attributable to Parent [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Income applicable to common stock	[2]	$ (564)	$ (568)	$ (1,127)	$ (1,134)

[1] The 2016 amounts for the noted items have been immaterially changed from the amounts originally reported as a result of the Company’s fourth quarter 2016 adoption of Accounting Standards Update (ASU) No. 2016-9, Compensation-Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting.

[2] Amounts in parentheses denote expense to statement of income.

[3] This component of accumulated other comprehensive income is included in the computation of net periodic benefit cost (see Note 8 for additional details).