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Segment Reporting - Segment Financial Information (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2019 | Apr. 01, 2018
Segment Reporting Information [Line Items] |  |
Net sales | $ 1,351,705 | $ 1,304,187
Operating profit | 116,888 | 110,098
Restructuring/Asset impairment charges | (10,672) | (3,063)
Consumer Packaging |  |
Segment Reporting Information [Line Items] |  |
Net sales | 589,716 | 569,852
Display and Packaging |  |
Segment Reporting Information [Line Items] |  |
Net sales | 137,554 | 142,658
Paper and Industrial Converted Products |  |
Segment Reporting Information [Line Items] |  |
Net sales | 496,037 | 460,653
Protective Solutions |  |
Segment Reporting Information [Line Items] |  |
Net sales | 128,398 | 131,024
Operating Segments | Consumer Packaging |  |
Segment Reporting Information [Line Items] |  |
Net sales | 589,716 | 569,852
Operating profit | 62,115 | 61,088
Operating Segments | Display and Packaging |  |
Segment Reporting Information [Line Items] |  |
Net sales | 137,554 | 142,658
Operating profit | 6,454 | 1,732
Operating Segments | Paper and Industrial Converted Products |  |
Segment Reporting Information [Line Items] |  |
Net sales | 496,037 | 460,653
Operating profit | 48,387 | 39,781
Operating Segments | Protective Solutions |  |
Segment Reporting Information [Line Items] |  |
Net sales | 128,398 | 131,024
Operating profit | 11,004 | 10,680
Intersegment Sales |  |
Segment Reporting Information [Line Items] |  |
Net sales | 36,204 | 36,393
Intersegment Sales | Consumer Packaging |  |
Segment Reporting Information [Line Items] |  |
Net sales | 921 | 739
Intersegment Sales | Display and Packaging |  |
Segment Reporting Information [Line Items] |  |
Net sales | 1,167 | 538
Intersegment Sales | Paper and Industrial Converted Products |  |
Segment Reporting Information [Line Items] |  |
Net sales | 33,654 | 34,543
Intersegment Sales | Protective Solutions |  |
Segment Reporting Information [Line Items] |  |
Net sales | 462 | 573
Segment Reconciling Items |  |
Segment Reporting Information [Line Items] |  |
Other, net | $ (400) | $ (120)

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