Rationalization Charges - Rationalization Charges by Business Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Restructuring Cost and Reserve [Line Items]
Rationalization charges	$ 1,379	$ 10,357
Dispensing and Specialty Closures
Restructuring Cost and Reserve [Line Items]
Rationalization charges	0	5,231
Metal Containers
Restructuring Cost and Reserve [Line Items]
Rationalization charges	1,274	5,021
Custom Containers
Restructuring Cost and Reserve [Line Items]
Rationalization charges	$ 105	$ 105