Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Net sales	$ 1,093,163	$ 1,059,103	$ 2,120,294	$ 2,071,385
Unbilled Revenues [Member]
Contract assets	77,200	76,700	77,200	76,700	$ 72,500
North America [Member]
Net sales	858,565	815,337	1,669,332	1,595,127
Europe and Other [Member]
Net sales	234,598	243,766	450,962	476,258
Metal Containers [Member]
Net sales	575,618	524,863	1,082,680	1,010,818
Closures [Member]
Net sales	363,344	378,762	719,543	749,108
Plastic Containers [Member]
Net sales	$ 154,201	$ 155,478	$ 318,071	$ 311,459