Rationalization Charges - Activity in Rationalization Plan Reserves (Detail) - USD ($) $ in Thousands	3 Months Ended																12 Months Ended
	Dec. 31, 2018		Sep. 30, 2018	[1]	Jun. 30, 2018	[1]	Mar. 31, 2018		Dec. 31, 2017		Sep. 30, 2017	[1]	Jun. 30, 2017	[1]	Mar. 31, 2017		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Restructuring Cost and Reserve [Line Items]
Rationalization Reserve Beginning Balance							$ 2,419								$ 3,371		$ 2,419	$ 3,371	$ 3,294
Rationalization charges	$ 4,800	[1]	$ 300		$ 500		700	[1]	$ 1,300	[1]	$ 600		$ 3,000		900	[1]	6,253	5,826	19,061
Rationalization Plan Reserves Utilized and CTA																	(7,060)	(6,778)	(18,984)
Rationalization Reserve Ending Balance	1,612								2,419								1,612	2,419	3,371
Remaining cash expenditures for our rationalization plans expected through 2023	3,100																3,100
Non-Cash Asset Write-Down
Restructuring Cost and Reserve [Line Items]
Rationalization charges																	4,821	3,191	6,749
Rationalization Plan Reserves Utilized and CTA																	(4,821)	(3,191)	(6,749)
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Rationalization Reserve Beginning Balance							2,397								2,426		2,397	2,426	268
Rationalization charges																	534	1,380	5,012
Rationalization Plan Reserves Utilized and CTA																	(1,449)	(1,409)	(2,854)
Rationalization Reserve Ending Balance	1,482								2,397								1,482	2,397	2,426
Special Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Rationalization charges																	0	0	2,197
Rationalization Plan Reserves Utilized and CTA																	0	0	(2,197)
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Rationalization Reserve Beginning Balance							22								$ 945		22	945	3,026
Rationalization charges																	898	1,255	5,103
Rationalization Plan Reserves Utilized and CTA																	(790)	(2,178)	(7,184)
Rationalization Reserve Ending Balance	130								22								130	22	945
Rationalization Plan [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Remaining expenses for our rationalization plans expected in 2019 and thereafter	1,500																1,500
Accrued Liabilities [Member]
Restructuring Cost and Reserve [Line Items]
Rationalization Reserve Beginning Balance							1,200										1,200
Rationalization Reserve Ending Balance	600								1,200								600	1,200
Other Liabilities [Member]
Restructuring Cost and Reserve [Line Items]
Rationalization Reserve Beginning Balance							$ 1,200										1,200
Rationalization Reserve Ending Balance	$ 1,000								$ 1,200								1,000	1,200
LaPorte, Indiana manufacturing facility [Member] | Special Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Rationalization charges																			2,800
LaPorte, Indiana manufacturing facility [Member] | Net Curtailment Gain [Member]
Restructuring Cost and Reserve [Line Items]
Rationalization charges																			(600)
Metal Containers [Member] | Facility Closings and Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Rationalization charges																	5,316	3,308	12,056
Closures [Member] | Facility Closings and Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Rationalization charges																	180	1,042	568
Plastic Containers [Member] | Facility Closings and Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Rationalization charges																	$ 757	$ 1,476	$ 6,437

[1] The first, second, third and fourth quarters of 2018 include rationalization charges of $0.7 million, $0.5 million, $0.3 million and $4.8 million, respectively. The second quarter of 2018 includes a loss on early extinguishment of debt of $2.5 million.