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Restructuring Costs - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
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May 30, 2021 | Feb. 28, 2021 | Aug. 30, 2020 | May 30, 2021 | May 31, 2020 | May 26, 2019
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Proceeds from sales of property and equipment |  |  |  | $ 12,913 | $ 2,434 | $ 264
Gain on disposal |  |  |  | (61) | $ (143) | $ (188)
Impairment of long-lived assets to be disposed of | $ 500 |  |  |  |  |
Equipment |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Impairment of long-lived assets to be disposed of |  | $ 1,900 |  |  |  |
Salad dressing plant in Ontario, California |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Proceeds from sales of property and equipment |  |  | $ 4,900 |  |  |
Gain on disposal |  |  | 2,800 | $ 2,800 |  |
Manufacturing operations in Hanover, Pennsylvania |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Impairment of long-lived assets to be disposed of |  |  | $ 8,800 |  |  |

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- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
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- Definition The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=123351718&loc=d3e2611-110228 + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3179-108585 + Details
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