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Investment in Non-public Company (Details) |  |  |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jun. 01, 2021 USD ($) | Oct. 29, 2014 USD ($) shares | Jul. 15, 2014 USD ($) shares | Feb. 15, 2011 USD ($) shares | May 30, 2021 USD ($) | May 31, 2020 USD ($) | May 26, 2019 USD ($) shares | Mar. 15, 2017 USD ($) director
Windset |  |  |  |  |  |  |  |
Investment Holdings [Line Items] |  |  |  |  |  |  |  |
Investment ownership percentage |  |  | 26.90% |  |  |  |  | 26.90%
Dividend income |  |  |  |  | $ 1,100,000 | $ 1,100,000 |  |
Change in market value of company's investment |  |  |  |  | $ 11,800,000 | $ (4,200,000) |  |
Number of designated board of directors | director |  |  |  |  |  |  |  | 1
Number of directors | director |  |  |  |  |  |  |  | 5
Windset | Curation Foods |  |  |  |  |  |  |  |
Investment Holdings [Line Items] |  |  |  |  |  |  |  |
Payments to acquire investments |  |  | $ 11,000,000.0 |  |  |  |  |
Time frame to be paid after anniversary |  |  | 90 days |  |  |  |  |
Liquidation value |  |  |  |  |  |  |  | $ 20,100,000
Payments for repurchase of equity | $ 45,100,000 |  |  |  |  |  |  |
Windset | Curation Foods | Senior A Preferred Stock |  |  |  |  |  |  |  |
Investment Holdings [Line Items] |  |  |  |  |  |  |  |
Liquidation value |  |  |  |  |  |  |  | 15,000,000.0
Windset | Curation Foods | Junior Preferred Shares |  |  |  |  |  |  |  |
Investment Holdings [Line Items] |  |  |  |  |  |  |  |
Preferred stock investment, dividends declared |  |  | $ 0 |  |  |  |  |
Liquidation value |  |  |  |  |  |  |  | $ 5,100,000
Windset | Curation Foods | Senior A Preferred Stock |  |  |  |  |  |  |  |
Investment Holdings [Line Items] |  |  |  |  |  |  |  |
Investment in non-public company shares (in shares) | shares |  |  |  | 150,000 |  |  |  |
Payments to acquire investments |  |  |  | $ 15,000,000.0 |  |  |  |
Windset | Curation Foods | Common Stock |  |  |  |  |  |  |  |
Investment Holdings [Line Items] |  |  |  |  |  |  |  |
Investment in non-public company shares (in shares) | shares |  |  | 68 | 201 |  |  |  |
Payments to acquire investments |  |  |  | $ 201,000 |  |  |  |
Windset | Curation Foods | Junior Preferred Shares |  |  |  |  |  |  |  |
Investment Holdings [Line Items] |  |  |  |  |  |  |  |
Investment in non-public company shares (in shares) | shares |  |  | 51,211 |  |  |  |  |
Windset | Curation Foods | Senior B Preferred Stock |  |  |  |  |  |  |  |
Investment Holdings [Line Items] |  |  |  |  |  |  |  |
Investment in non-public company shares (in shares) | shares |  | 70,000 |  |  |  |  | 70,000 |
Payments to acquire investments |  | $ 7,000,000.0 |  |  |  |  |  |
Dividend percentage rate |  | 7.50% |  |  |  |  |  |
Put option for preferred shares |  |  |  |  |  |  | $ 7,000,000.0 |
Senior A Preferred Stock |  |  |  |  |  |  |  |
Investment Holdings [Line Items] |  |  |  |  |  |  |  |
Dividend percentage rate |  |  | 7.50% |  |  |  |  |

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