Restructuring and Related Charges - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019	Sep. 30, 2018
Restructuring Cost And Reserve [Line Items]
Restructuring and related charges	$ 281	$ 4,225	$ 124
2019 Restructuring Plan
Restructuring Cost And Reserve [Line Items]
Restructuring and related charges	300	4,200
Total annualized savings	10,300	10,300
Healthcare | 2019 Restructuring Plan
Restructuring Cost And Reserve [Line Items]
Restructuring and related charges		1,800
Total annualized savings	5,900	5,900
Nutrition | 2019 Restructuring Plan
Restructuring Cost And Reserve [Line Items]
Restructuring and related charges		2,400
Total annualized savings	$ 4,400	$ 4,400