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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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Technical Packaging Divestiture (Details) $ in Thousands	1 Months Ended	3 Months Ended	12 Months Ended
Technical Packaging Divestiture (Details) $ in Thousands	Dec. 31, 2019 subsidiary	Jun. 30, 2020 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
After-tax gain on the sale of business			$ 77,116
Working capital adjustment		$ 200
Technical Packaging Business \| Discontinued Operations Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales			16,500	$ 86,900
Pretax (loss) earnings			(300)	$ 4,300
Proceeds from sale of discontinued operations			184,000
After-tax gain on the sale of business			$ 76,500
Technical Packaging Business \| Sonoco Products Company \| Discontinued Operations Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number Of Wholly Owned Subsidiaries of the Company \| subsidiary	2