Rationalization Charges - Rationalization Charges by Business Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Restructuring Cost and Reserve [Line Items]
Rationalization charges	$ 2,667	$ 3,428	$ 6,788	$ 4,807
Dispensing and Specialty Closures
Restructuring Cost and Reserve [Line Items]
Rationalization charges	1,214	0	1,328	0
Metal Containers
Restructuring Cost and Reserve [Line Items]
Rationalization charges	1,453	3,428	5,356	4,702
Custom Containers
Restructuring Cost and Reserve [Line Items]
Rationalization charges	$ 0	$ 0	$ 104	$ 105