Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Name:	us-gaap_RestructuringCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Restructuring and Related Charges - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restructuring Cost And Reserve [Line Items]
Restructuring and related charges	$ 7,024	$ 124	$ 3,223
2019 Restructuring Plan
Restructuring Cost And Reserve [Line Items]
Restructuring and related charges	7,000
Total annualized savings	17,500
Healthcare \| 2019 Restructuring Plan
Restructuring Cost And Reserve [Line Items]
Restructuring and related charges	1,900
Total annualized savings	5,900
Nutrition \| 2019 Restructuring Plan
Restructuring Cost And Reserve [Line Items]
Restructuring and related charges	5,100
Total annualized savings	$ 11,600