Rationalization Charges Rationalization Charges by Business Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Restructuring Cost and Reserve [Line Items]
Rationalization charges	$ 3,195	$ 288	$ 48,594	$ 1,483
Metal Containers [Member]
Restructuring Cost and Reserve [Line Items]
Rationalization charges	3,035	72	42,280	812
Closures [Member]
Restructuring Cost and Reserve [Line Items]
Rationalization charges	72	111	5,979	150
Plastic Containers [Member]
Restructuring Cost and Reserve [Line Items]
Rationalization charges	$ 88	$ 105	$ 335	$ 521