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Acquisitions - Narrative (Details) $ in Thousands |  |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Dec. 01, 2018 USD ($) tranche intangible_asset shares | Mar. 01, 2017 USD ($) | May 26, 2019 USD ($) | May 26, 2019 USD ($) | May 27, 2018 USD ($) | May 28, 2017 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |
Acquisition of Yucatan (Note 2) |  |  |  | $ 22,232 | $ 0 |
Goodwill |  |  | $ 76,742 | 76,742 | 54,510 | $ 54,510
Change in contingent consideration liability |  |  |  | (3,500) | (1,900) | 0
Yucatan Foods, LP |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Consideration paid | $ 74,966 |  |  |  |  |
Cash consideration | $ 59,898 |  |  |  |  |
Shares issued for acquisition (in shares) | shares | 1,203,360 |  |  |  |  |
Stock consideration | $ 15,068 |  |  |  |  |
Number of tranches | tranche | 2 |  |  |  |  |
Deferred income tax adjustment |  |  | 1,700 |  |  |
Indemnification provisions for environmental related items |  |  | 700 |  |  |
Increase to goodwill |  |  | 1,000 |  |  |
Number of intangible assets in connection with Yucatan acquisition | intangible_asset | 2 |  |  |  |  |
Acquisition of Yucatan (Note 2) |  |  |  | 22,200 |  |
Goodwill | $ 22,232 |  |  |  |  |
Percentage of goodwill expected to be deductible for income tax purposes | 80.00% |  |  |  |  |
Yucatan Foods, LP | Customer relationships |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Customer relationships | $ 11,000 |  |  |  |  |
Amortization Period (years) | 12 years |  |  |  |  |
Yucatan Foods, LP | Trade Names |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Trademarks/tradenames | $ 15,900 |  |  |  |  |
Yucatan Foods, LP | Selling, general and administrative |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  | 3,300 |  |
Yucatan Foods, LP | Share-based Compensation Award, Tranche One |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Discount percentage | 17.50% |  |  |  |  |
Lock-up period | 3 years |  |  |  |  |
Percentage of stock consideration released from lock-up | 50.00% |  |  |  |  |
Yucatan Foods, LP | Share-based Compensation Award, Tranche Two |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Discount percentage | 20.00% |  |  |  |  |
Lock-up period | 4 years |  |  |  |  |
Percentage of stock consideration released from lock-up | 50.00% |  |  |  |  |
Yucatan Foods, LP | Common Stock |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Stock consideration | $ 15,100 |  |  |  |  |
O Olive & Vinegar |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Cash consideration |  | $ 2,500 |  |  |  |
Goodwill |  | 5,200 |  |  |  |
Potential earn out payment |  | $ 7,500 |  |  |  |
Contingent consideration period |  | 3 years |  |  |  |
Cumulative EBITDA amount |  |  |  |  | 6,000 |
Acquisition related expenses recognized |  |  |  |  |  | 200
O Olive & Vinegar | Customer Lists |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Value of customer base |  | $ 700 |  |  |  |
O Olive & Vinegar | Trademarks and tradenames |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Value of trade names and trademarks |  | $ 1,600 |  |  |  |
Useful life of finite-lived intangible assets |  | 11 years |  |  |  |
O Olive & Vinegar | Selling, general and administrative |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Contingent consideration liability |  |  | $ 500 | 500 | 4,000 | $ 5,900
Change in contingent consideration liability |  |  |  | $ 3,500 | 1,900 |
O Olive & Vinegar | Initial Potential Payment Limit |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Potential earn out payment |  |  |  |  | 4,600 |
O Olive & Vinegar | Additional Potential Payment Limit |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Potential earn out payment |  |  |  |  | $ 2,900 |

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