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Schedule of Reclassification Adjustments and Other Activities Impacting Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance		$ (39,500)	$ (20,444)	$ (69,091)
Cumulative effect of accounting change due to adoption of ASU 2018-02			(40)
Other comprehensive income (loss) before reclassifications		(1,420)	(17,852)	50,602
Income tax effect of other comprehensive income (loss) before reclassifications		(654)	(742)	(575)
Amounts reclassified from accumulated other comprehensive income (loss) into net income		(1,108)	(391)	(1,943)
Income taxes reclassified into net income		241	(31)	563
Other comprehensive loss, net of tax		(2,941)	(19,056)	48,647
Ending Balance		(42,441)	(39,500)	(20,444)
Defined Benefit Pension Plans
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance		(2,339)	(2,366)	(2,550)
Cumulative effect of accounting change due to adoption of ASU 2018-02			(49)
Other comprehensive income (loss) before reclassifications		(1,264)	18	166
Income tax effect of other comprehensive income (loss) before reclassifications		232	(15)	(60)
Amounts reclassified from accumulated other comprehensive income (loss) into net income			73	78
Other comprehensive loss, net of tax		(1,032)	27	184
Ending Balance		(3,371)	(2,339)	(2,366)
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance		(37,157)	(17,555)	(65,762)
Other comprehensive income (loss) before reclassifications		(2,415)	(19,212)	48,059
Income tax effect of other comprehensive income (loss) before reclassifications		(393)	(390)	148
Other comprehensive loss, net of tax		(2,808)	(19,602)	48,207
Ending Balance		(39,965)	(37,157)	(17,555)
Foreign Currency Hedge Derivatives
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance		(4)	(800)	(1,020)
Other comprehensive income (loss) before reclassifications		2,259	1,342	2,123
Income tax effect of other comprehensive income (loss) before reclassifications		(493)	(337)	(570)
Amounts reclassified from accumulated other comprehensive income (loss) into net income	[1]	(1,108)	(246)	(1,822)
Income taxes reclassified into net income		241	37	489
Other comprehensive loss, net of tax		899	796	220
Ending Balance		$ 895	(4)	(800)
Commodity Hedge Derivatives
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance			277	241
Cumulative effect of accounting change due to adoption of ASU 2018-02			9
Other comprehensive income (loss) before reclassifications				254
Income tax effect of other comprehensive income (loss) before reclassifications				(93)
Amounts reclassified from accumulated other comprehensive income (loss) into net income	[1]		(218)	(199)
Income taxes reclassified into net income			(68)	74
Other comprehensive loss, net of tax			$ (277)	36
Ending Balance				$ 277
[1] The amounts reclassified from accumulated other comprehensive income (loss) are included in cost of sales.  See Note 14 for information related to the effect of commodity and foreign currency derivative instrument`s on our consolidated statements of income.

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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