Business Segment Information - Reportable Business Segment Information (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Segment Reporting Information [Line Items]
Net sales		$ 1,176,470	$ 1,093,163	$ 2,206,854	$ 2,120,294
Depreciation and amortization	[1]	51,965	51,957	102,095	102,274
Rationalization charges		1,942	39,317	4,741	45,400
Segment Income		131,234	68,599	233,375	155,341
Amortization of debt discount and debt issuance costs excluded from depreciation and amortization		1,100	900	2,100	1,800
Metal Containers [Member]
Segment Reporting Information [Line Items]
Net sales		597,191	575,618	1,105,709	1,082,680
Depreciation and amortization	[1]	20,545	21,437	41,026	42,543
Rationalization charges		1,153	39,023	3,116	39,245
Segment Income		71,782	14,029	119,261	52,926
Closures [Member]
Segment Reporting Information [Line Items]
Net sales		410,468	363,344	767,619	719,543
Depreciation and amortization	[1]	22,026	21,145	42,150	41,498
Rationalization charges		700	248	1,442	5,908
Segment Income		58,581	46,857	103,810	87,113
Plastic Containers [Member]
Segment Reporting Information [Line Items]
Net sales		168,811	154,201	333,526	318,071
Depreciation and amortization	[1]	9,352	9,336	18,840	18,153
Rationalization charges		89	46	183	247
Segment Income		22,987	13,410	45,032	25,476
Corporate [Member]
Segment Reporting Information [Line Items]
Net sales		0	0	0
Depreciation and amortization	[1]	42	39	79	80
Rationalization charges		0	0	0
Segment Income		$ (22,116)	$ (5,697)	$ (34,728)	$ (10,174)

[1] Depreciation and amortization excludes amortization of debt discount and debt issuance costs of $1.1 million and $2.1 million for the three and six months ended June 30, 2020, respectively, and debt issuance costs of $0.9 million and $1.8 million for the three and six months ended June 30, 2019, respectively.