Schedule of Reclassification Adjustments and Other Activities Impacting Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance		$ (7,551)	$ (61,393)	$ (20,444)	$ (69,091)
Cumulative effect of accounting change due to adoption of ASU 2018-02				(40)
Other comprehensive income (loss) before reclassifications		(24,386)	24,405	(10,791)	31,843
Income tax effect of other comprehensive income (loss) before reclassifications		218	(409)	(356)	(933)
Amounts reclassified from accumulated other comprehensive (income) loss into net income (loss)		(169)	(289)	(129)	780
Income taxes reclassified into net income (loss)		45	78	(83)	(207)
Other comprehensive (loss) income, net of tax		(24,292)	23,785	(11,399)	31,483
Ending Balance		(31,843)	(37,608)	(31,843)	(37,608)
Defined Benefit Pension Plans
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance		(2,406)	(2,550)	(2,366)	(2,550)
Cumulative effect of accounting change due to adoption of ASU 2018-02				(40)
Other comprehensive (loss) income, net of tax				(40)
Ending Balance		(2,406)	(2,550)	(2,406)	(2,550)
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance		(5,890)	(60,250)	(17,555)	(65,762)
Other comprehensive income (loss) before reclassifications		(22,994)	23,285	(11,253)	28,800
Income tax effect of other comprehensive income (loss) before reclassifications		(156)	(106)	(232)	(109)
Other comprehensive (loss) income, net of tax		(23,150)	23,179	(11,485)	28,691
Ending Balance		(29,040)	(37,071)	(29,040)	(37,071)
Commodity Hedge Derivatives
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance			262	277	241
Other comprehensive income (loss) before reclassifications			28		78
Income tax effect of other comprehensive income (loss) before reclassifications			(10)		(28)
Amounts reclassified from accumulated other comprehensive (income) loss into net income (loss)	[1]		(12)	(218)	(30)
Income taxes reclassified into net income (loss)			4	(59)	11
Other comprehensive (loss) income, net of tax			10	(277)	31
Ending Balance			272		272
Foreign Currency Hedge Derivatives
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance		745	1,145	(800)	(1,020)
Other comprehensive income (loss) before reclassifications		(1,392)	1,092	462	2,965
Income tax effect of other comprehensive income (loss) before reclassifications		374	(293)	(124)	(796)
Amounts reclassified from accumulated other comprehensive (income) loss into net income (loss)	[1]	(169)	(277)		810
Income taxes reclassified into net income (loss)		45	74	(24)	(218)
Other comprehensive (loss) income, net of tax		(1,142)	596	403	2,761
Ending Balance		$ (397)	$ 1,741	$ (397)	$ 1,741

[1] The amounts reclassified from accumulated other comprehensive income (loss) are included in cost of sales.