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CONTINGENCIES (Details) |  |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | ---
Mar. 25, 2016 USD ($) | Jan. 27, 2014 USD ($) defendant | Feb. 25, 2018 USD ($) property | Nov. 26, 2017 USD ($) site period | May 28, 2017 USD ($)
Guarantor Obligations [Line Items] |  |  |  |  |
Period during which Beatrice has paid or is in the process of paying its liability share |  |  |  | 5 years |
Put options, general exercise period |  |  |  | 30 days |
Loss on lease put option |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |
Estimate of possible loss |  |  |  | $ 50,700,000 | $ 51,800,000
Put options, general exercise period |  |  |  | 30 days |
Accrued put cost |  |  |  | $ 10,200,000 | $ 8,400,000
Loss on lease put option for one building |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |
Accrued put cost |  |  |  | $ 1,000,000 |
Judicial ruling |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |
Damages awarded to plaintiff | $ 108,900,000 |  |  |  |
Beatrice |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |
Number of sites under environmental matters for which acquired company has a liability | site |  |  |  | 40 |
Number of sites under environmental matters for which acquired company is making payments | site |  |  |  | 31 |
Accrual for environmental matters |  |  |  | $ 52,800,000 |
Beatrice | California |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |
Number of other defendants | defendant |  | 2 |  |  |
Estimate of possible loss |  | $ 1,150,000,000 |  |  |
Warehouse services agreement |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |
Minimum monthly payment required under warehouse services agreement |  |  |  | 1,500,000.0 |
Liability for estimated fair value of guarantee |  |  |  | 28,900,000 |
Performance and payment guarantee for Lamb Weston |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |
Guarantee under sublease agreement (maximum) |  |  |  | $ 75,000,000.0 |
Lamb Weston |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |
Number of optional extension periods | period |  |  |  | 2 |
Period of optional extensions |  |  |  | 5 years |
Scenario, Forecast |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |
Loss for early termination of lease |  |  | $ 13,000,000 |  |
Scenario, Forecast | Loss on lease put option for one building |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |
Estimate of possible loss |  |  | $ 8,200,000 |  |
Number of properties under lease agreements, put option price exceeds estimated fair value | property |  |  | 1 |  |
Minimum | Scenario, Forecast |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |
Loss for early termination of lease |  |  | $ 30,000,000 |  |
Maximum | Scenario, Forecast |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |
Loss for early termination of lease |  |  | $ 40,000,000 |  |

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