Restructuring - Summary of Restructuring Liability (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($)
Restructuring Reserve [Roll Forward]
Beginning Balance	$ 1,534
Costs Incurred	1,191
Payments	(2,068)
Translation Adjustment	(23)
Ending Balance	634
Cumulative Costs Incurred to Date	11,339
2015 Initiatives | Employee Severance Costs
Restructuring Reserve [Roll Forward]
Beginning Balance	0
Costs Incurred	0
Payments	0
Translation Adjustment	0
Ending Balance	0
Cumulative Costs Incurred to Date	4,131
2015 Initiatives | Facility Exit Related Costs
Restructuring Reserve [Roll Forward]
Beginning Balance	981
Costs Incurred	114
Payments	(461)
Translation Adjustment	0
Ending Balance	634
Cumulative Costs Incurred to Date	1,842
2017 Initiatives | Employee Severance Costs
Restructuring Reserve [Roll Forward]
Beginning Balance	287
Costs Incurred	61
Payments	(359)
Translation Adjustment	11
Ending Balance	0
Cumulative Costs Incurred to Date	3,412
2017 Initiatives | Facility Exit Related Costs
Restructuring Reserve [Roll Forward]
Beginning Balance	106
Costs Incurred	2
Payments	(108)
Translation Adjustment	0
Ending Balance	0
Cumulative Costs Incurred to Date	285
2017 Initiatives | Other Related Costs
Restructuring Reserve [Roll Forward]
Beginning Balance	160
Costs Incurred	20
Payments	(180)
Translation Adjustment	0
Ending Balance	0
Cumulative Costs Incurred to Date	675
2018 Initiatives | Employee Severance Costs
Restructuring Reserve [Roll Forward]
Beginning Balance	0
Costs Incurred	994
Payments	(960)
Translation Adjustment	(34)
Ending Balance	0
Cumulative Costs Incurred to Date	$ 994