Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2022	Oct. 03, 2021	Oct. 02, 2022	Oct. 03, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 1,890,216	$ 1,415,193	$ 5,574,530	$ 4,151,251
United States
Disaggregation of Revenue [Line Items]
Revenue	1,407,906	923,983	4,035,043	2,723,911
Europe
Disaggregation of Revenue [Line Items]
Revenue	221,280	233,172	732,252	702,861
Canada
Disaggregation of Revenue [Line Items]
Revenue	58,625	55,799	174,294	157,166
Asia
Disaggregation of Revenue [Line Items]
Revenue	91,152	102,218	291,177	293,827
Other
Disaggregation of Revenue [Line Items]
Revenue	111,253	100,021	341,764	273,486
Consumer Packaging
Disaggregation of Revenue [Line Items]
Revenue	1,030,549	598,969	2,888,630	1,779,525
Consumer Packaging | United States
Disaggregation of Revenue [Line Items]
Revenue	837,048	408,295	2,282,559	1,219,666
Consumer Packaging | Europe
Disaggregation of Revenue [Line Items]
Revenue	101,665	109,566	331,745	334,995
Consumer Packaging | Canada
Disaggregation of Revenue [Line Items]
Revenue	30,154	31,612	89,342	87,948
Consumer Packaging | Asia
Disaggregation of Revenue [Line Items]
Revenue	25,492	20,728	74,533	60,256
Consumer Packaging | Other
Disaggregation of Revenue [Line Items]
Revenue	36,190	28,768	110,451	76,660
Industrial Paper Packaging
Disaggregation of Revenue [Line Items]
Revenue	661,452	635,230	2,087,981	1,809,159
Industrial Paper Packaging | United States
Disaggregation of Revenue [Line Items]
Revenue	405,382	370,659	1,259,348	1,042,249
Industrial Paper Packaging | Europe
Disaggregation of Revenue [Line Items]
Revenue	99,804	99,573	334,007	300,495
Industrial Paper Packaging | Canada
Disaggregation of Revenue [Line Items]
Revenue	28,471	24,187	84,952	69,218
Industrial Paper Packaging | Asia
Disaggregation of Revenue [Line Items]
Revenue	65,475	81,097	215,896	232,657
Industrial Paper Packaging | Other
Disaggregation of Revenue [Line Items]
Revenue	62,320	59,714	193,778	164,540
All Other
Disaggregation of Revenue [Line Items]
Revenue	198,215	180,994	597,919	562,567
All Other | United States
Disaggregation of Revenue [Line Items]
Revenue	165,476	145,029	493,136	461,996
All Other | Europe
Disaggregation of Revenue [Line Items]
Revenue	19,811	24,033	66,500	67,371
All Other | Canada
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
All Other | Asia
Disaggregation of Revenue [Line Items]
Revenue	185	393	748	914
All Other | Other
Disaggregation of Revenue [Line Items]
Revenue	$ 12,743	$ 11,539	$ 37,535	$ 32,286