Rationalization Charges - Rationalization Charges by Business Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Restructuring Cost and Reserve [Line Items]
Rationalization charges	$ 3,428	$ 354	$ 4,807	$ 10,711
Dispensing and Specialty Closures
Restructuring Cost and Reserve [Line Items]
Rationalization charges	0	67	0	5,298
Metal Containers
Restructuring Cost and Reserve [Line Items]
Rationalization charges	3,428	225	4,702	5,246
Custom Containers
Restructuring Cost and Reserve [Line Items]
Rationalization charges	$ 0	$ 62	$ 105	$ 167