Restructuring and impairment charges - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restructuring and Related Activities [Abstract]
Asset impairment charges	$ 6,739	$ 21,388	$ 6,966
Respiratory divestiture plan | Termination benefits
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	3,300
Minimum | Respiratory divestiture plan
Restructuring Cost and Reserve [Line Items]
Aggregate capital expenditures	22,000
Maximum | Respiratory divestiture plan
Restructuring Cost and Reserve [Line Items]
Aggregate capital expenditures	$ 28,000