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Organization, Basis of Presentation, and Summary of Significant Accounting Policies - Narrative (Details) |  |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 09, 2021 USD ($) | Jun. 01, 2021 USD ($) | Sep. 02, 2020 USD ($) plaintiff | Feb. 27, 2022 USD ($) product revenue | Feb. 28, 2021 USD ($) | Nov. 29, 2020 USD ($) | Aug. 30, 2020 USD ($) | Feb. 27, 2022 USD ($) product revenue | Feb. 28, 2021 USD ($) | May 30, 2021 USD ($) | May 31, 2020 USD ($) | Dec. 13, 2021 USD ($) | May 31, 2021 | Nov. 03, 2020 USD ($) | Jul. 15, 2014
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of product category | product |  |  |  | 2 |  |  |  | 2 |  |  |  |  |  |  |
Number of revenue category | revenue |  |  |  | 3 |  |  |  | 3 |  |  |  |  |  |  |
Repayments of borrowings under credit agreement |  |  |  |  |  |  |  | $ 67,900,000 |  |  |  |  |  |  |
Loss on sale of Eat Smart |  |  |  |  |  |  |  | 4,354,000 | $ 0 |  |  |  |  |  |
Debt issuance cost, current portion |  |  |  | $ 1,400,000 |  |  |  | 1,400,000 |  | $ 1,400,000 |  |  |  |  |
Debt issuance cost, noncurrent portion |  |  |  | 4,100,000 |  |  |  | 4,100,000 |  | 5,100,000 |  |  |  |  |
Cash flow hedge expected to be reclassified within twelve months |  |  |  |  |  |  |  | 300,000 |  |  |  |  |  |  |
Proceeds from sales of property and equipment |  |  |  |  |  |  |  | 1,096,000 | 12,885,000 |  |  |  |  |  |
Gain on sale of property |  |  |  |  |  |  |  | (25,000) | (39,000) |  |  |  |  |  |
Sale of Investment in non-public company |  |  |  |  |  |  |  | 45,100,000 | 0 |  |  |  |  |  |
Revenue recognized included in the contract liability |  |  |  | 0 |  |  |  | 200,000 |  |  |  |  |  |  |
Deferred revenue |  |  |  | 1,614,000 |  |  |  | 1,614,000 |  | 637,000 |  |  |  |  |
Former owner, plaintiff | plaintiff |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |
Insurance recoveries |  |  |  |  | $ 1,600,000 |  |  |  |  |  |  |  |  |  |
Transferred at Point in Time |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue recognized included in the contract liability |  |  |  | 1,500,000 |  |  |  | 1,500,000 |  |  |  |  |  |  |
Windset |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment ownership percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 26.90%
Sale of Investment in non-public company |  | $ 45,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Eat Smart | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration for disposition |  |  |  |  |  |  |  |  |  |  |  | $ 73,500,000 |  |  |
Loss on sale of Eat Smart |  |  |  | 4,400,000 |  |  |  | 4,400,000 |  |  |  |  |  |  |
Windset |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment ownership percentage |  |  |  |  |  |  |  |  |  |  |  |  | 26.90% |  |
Gain (loss) on investment |  | $ 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Permitting At Tanok Facility In Mexico |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages sought |  |  | $ 10,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Unbilled Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract with customer, assets |  |  |  | 13,900,000 |  |  |  | 13,900,000 |  | 10,600,000 |  |  |  |  |
Deferred revenue |  |  |  | 1,600,000 |  |  |  | 1,600,000 |  | 900,000 |  |  |  |  |
Eat Smart |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill, impairment loss |  |  |  | 0 |  |  |  | $ 32,100,000 |  |  |  |  |  |  |
Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, minimum amount of damages |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 80,000,000 |
Customer relationships, net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Useful life (in years) |  |  |  |  |  |  |  | 12 years |  |  |  |  |  |  |
Salad Dressing Plant In Ontario, California |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment of assets held for sale |  |  |  |  |  |  |  |  |  |  | $ 10,900,000 |  |  |  |
Proceeds from sales of property and equipment |  |  |  |  |  |  |  |  | 4,900,000 |  |  |  |  |  |
Gain on sale of property |  |  |  |  |  |  |  |  | 2,800,000 |  |  |  |  |  |
Manufacturing Operations in Hanover, Pennsylvania |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment of assets held for sale |  |  |  |  |  |  | $ 8,800,000 |  |  |  |  |  |  |  |
Manufacturing Operations in Hanover, Pennsylvania | Asset reclassification from property and equipment to other current assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on sale of property |  |  |  |  |  | $ 0 |  |  |  |  |  |  |  |  |
Proceeds from sale of property held-for-sale |  |  |  |  |  | $ 8,000,000 |  |  |  |  |  |  |  |  |
Rock Hill South Carolina Distribution Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment of assets held for sale |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Proceeds from sales of property and equipment | $ 1,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on sale of property | $ 600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets held for sale |  |  |  |  |  |  |  |  |  | 500,000 |  |  |  |  |
Prepaid Expenses and Other Current Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt issuance costs |  |  |  | 700,000 |  |  |  | $ 700,000 |  | 700,000 |  |  |  |  |
Other Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt issuance costs |  |  |  | $ 1,900,000 |  |  |  | $ 1,900,000 |  | 2,400,000 |  |  |  |  |
Windset |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related accounts receivable |  |  |  |  |  |  |  |  |  | $ 100,000 |  |  |  |  |
Cost of product sales | Windset |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from related parties |  |  |  |  | $ 200,000 |  |  |  | $ 400,000 |  |  |  |  |  |

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