Schedule of Reclassification Adjustments and Other Activities Impacting Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance		$ (49,500)	$ (40,528)	$ (51,670)	$ (25,743)
Other comprehensive income (loss) before reclassifications		1,404	(5,694)	2,843	(21,477)
Income tax effect of other comprehensive income (loss) before reclassifications		210	450	1,084	1,399
Amounts reclassified from accumulated other comprehensive income (loss) into net income		97	432	(57)	507
Income taxes reclassified into net income		(41)	(119)	(30)	(145)
Other comprehensive income (loss), net of tax		1,670	(4,931)	3,840	(19,716)
Ending balance		(47,830)	(45,459)	(47,830)	(45,459)
Defined Benefit Pension Plans
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance		(2,060)	(2,673)	(2,060)	(2,673)
Ending balance		(2,060)	(2,673)	(2,060)	(2,673)
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance		(47,645)	(37,230)	(49,381)	(23,060)
Other comprehensive income (loss) before reclassifications		2,230	(4,429)	2,866	(19,312)
Income tax effect of other comprehensive income (loss) before reclassifications		(13)	51	1,087	764
Other comprehensive income (loss), net of tax		2,217	(4,378)	3,953	(18,548)
Ending balance		(45,428)	(41,608)	(45,428)	(41,608)
Commodity Hedge Derivatives
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance		26	(48)	(229)
Other comprehensive income (loss) before reclassifications		(8)	(392)	94	(419)
Income tax effect of other comprehensive income (loss) before reclassifications		3	162	(35)	162
Amounts reclassified from accumulated other comprehensive income (loss) into net income	[1]	147	19	450	(2)
Income taxes reclassified into net income		(54)	(7)	(166)	(7)
Other comprehensive income (loss), net of tax		88	(218)	343	(266)
Ending balance		114	(266)	114	(266)
Foreign Currency Hedge Derivatives
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance		179	(577)		(10)
Other comprehensive income (loss) before reclassifications		(818)	(873)	(117)	(1,746)
Income tax effect of other comprehensive income (loss) before reclassifications		220	237	32	473
Amounts reclassified from accumulated other comprehensive income (loss) into net income	[1]	(50)	413	(507)	509
Income taxes reclassified into net income		13	(112)	136	(138)
Other comprehensive income (loss), net of tax		(635)	(335)	(456)	(902)
Ending balance		$ (456)	$ (912)	$ (456)	$ (912)

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