Accumulated Other Comprehensive Income (Loss) - Changes in Accumulated Income (Loss) by Component (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Other comprehensive income (loss)	$ (6,423)	$ 9,307
Accumulated other comprehensive income (loss), ending balance	(7,328)	173
Retirement Plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), beginning balance	(8,146)	(12,066)
Other comprehensive income (loss) before reclassifications	0	0
Income tax	0	0
Other comprehensive income (loss) before reclassifications, net of tax	0	0
Amounts reclassified from accumulated other comprehensive income (loss)	266	522
Income tax	(69)	(142)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	197	380
Other comprehensive income (loss)	197	380
Accumulated other comprehensive income (loss), ending balance	(7,949)	(11,686)
Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), beginning balance	(32,551)	(13,185)
Other comprehensive income (loss) before reclassifications	(4,207)	8,921
Income tax	0	0
Other comprehensive income (loss) before reclassifications, net of tax	(4,207)	8,921
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Income tax	0	0
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	0	0
Other comprehensive income (loss)	(4,207)	8,921
Accumulated other comprehensive income (loss), ending balance	(36,758)	(4,264)
Derivatives and Other
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), beginning balance	(4,915)	167
Other comprehensive income (loss) before reclassifications	(3,649)	6
Income tax	808	0
Other comprehensive income (loss) before reclassifications, net of tax	(2,841)	6
Amounts reclassified from accumulated other comprehensive income (loss)	578
Income tax	(150)	0
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	428	0
Other comprehensive income (loss)	(2,413)	6
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), beginning balance	(45,612)	(25,084)
Other comprehensive income (loss) before reclassifications	(7,856)	8,927
Income tax	808	0
Other comprehensive income (loss) before reclassifications, net of tax	(7,048)	8,927
Amounts reclassified from accumulated other comprehensive income (loss)	844	522
Income tax	(219)	(142)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	625	380
Other comprehensive income (loss)	(6,423)	9,307
Accumulated other comprehensive income (loss), ending balance	$ (52,035)	$ (15,777)