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Segment Information - Analysis of Operations by Reportable Segment (Parenthetical) (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Oct. 31, 2021 | Dec. 31, 2022 | Mar. 31, 2021 | Jun. 30, 2022 | Jun. 30, 2020 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Goodwill impairment charge |  |  | $ 0 |  |  |  | $ 0 | $ 0 | $ 55,200,000
Charges for disposal of fixed assets |  |  |  |  |  |  | (15,200,000) | (6,100,000) | (6,800,000)
Acquisition and integration related costs | [1] |  |  |  |  |  | 0 | 600,000 | 0
Gain on Sale of Transportation Assets |  |  |  |  |  |  | 800,000 |  |
Business Combination Acquisition And Integration Related Costs | [1] |  |  |  |  |  | 0 | 600,000 | $ 0
Debt Refinancing Cost |  | $ 58,900,000 |  |  |  |  |  |  |
Advance Packaging Corporation [Member] |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  | $ 400,000 |  |  |  |  |
Acquisition and integration related costs |  |  |  |  |  |  | 1,000,000.0 | 500,000 |
Business Combination Acquisition And Integration Related Costs |  |  |  |  |  |  | 1,000,000.0 | 500,000 |
Packaging |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Acquisition and integration related costs |  |  |  |  |  |  |  | 400,000 |
Business Combination Acquisition And Integration Related Costs |  |  |  |  |  |  |  | 400,000 |
Packaging | COVID-19 |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  | $ 6,300,000 |  |  |  |
Corrugated Products Facilities |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  | 700,000 |
Paper |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  | 800,000 |  |
Paper | COVID-19 |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Incremental Out Of Pocket Costs |  |  |  |  |  |  | 600,000 |  |
Packaging and Paper |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  | 27,300,000 |  |  |  |
Paper Reporting Unit |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Goodwill impairment charge |  |  |  |  |  | $ 55,200,000 |  |  |
DeRidder, Louisiana Mill |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  | $ 10,000,000.0 |  |  |  |
Jackson Alabama Mill [Member] | Corrugated Products Facilities |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Adjustment of asset retirement obligation |  |  |  | 4,300,000 |  |  |  |  |
Jackson Alabama Mill [Member] | Paper |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  | $ 9,300,000 |  |  |  |  |
Adjustment of asset retirement obligation |  |  |  |  |  |  |  | 5,300,000 |
Jackson Alabama Mill [Member] | Paper Reporting Unit |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  | $ 8,800,000 |
San Lorenzo, California [Member] |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  | $ 2,800,000 |  |
[1] | Includes charges related to the December 2021 Advance Packaging Corporation acquisition.

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