Business Segment Information - Reportable Business Segment Information (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting Information [Line Items]
Net sales		$ 1,488,499	$ 1,321,342	$ 3,695,353	$ 3,441,635
Depreciation and amortization	[1]	58,031	51,875	160,127	154,151
Rationalization charges		2,505	3,195	7,247	48,594
Segment Income		174,033	132,695	407,408	288,035
Amortization of debt issuance costs and discounts		1,200		3,300
Amortization of debt discount			800		2,600
Metal Containers
Segment Reporting Information [Line Items]
Net sales		856,660	822,262	1,962,370	1,904,941
Depreciation and amortization	[1]	21,008	21,477	62,034	64,021
Rationalization charges		1,639	3,035	4,755	42,280
Segment Income		94,497	81,128	213,757	134,053
Closures
Segment Reporting Information [Line Items]
Net sales		475,105	353,436	1,242,725	1,072,979
Depreciation and amortization	[1]	27,777	20,847	69,927	62,345
Rationalization charges		787	72	2,229	5,979
Segment Income		64,161	44,784	167,971	131,896
Plastic Containers
Segment Reporting Information [Line Items]
Net sales		156,734	145,644	490,258	463,715
Depreciation and amortization	[1]	9,207	9,512	28,046	27,665
Rationalization charges		79	88	263	335
Segment Income		21,887	11,425	66,918	36,902
Corporate
Segment Reporting Information [Line Items]
Net sales		0	0	0	0
Depreciation and amortization	[1]	39	39	120	120
Rationalization charges		0	0	0	0
Segment Income		$ (6,512)	$ (4,642)	$ (41,238)	$ (14,816)

[1] Depreciation and amortization excludes amortization of debt discount and debt issuance costs of $1.2 million and $3.3 million for the three and nine months ended September 30, 2020, respectively, and amortization of debt issuance costs of $0.8 million and $2.6 million for the three and nine months ended September 30, 2019, respectively.