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Contingent Liabilites and Commitments (Repurchase Commitments Narrative) (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
May 27, 2017 | Aug. 27, 2016
Purchase Commitment, Excluding Long-term Commitment [Line Items] |  |
Repurchase agreement term | 18 months |
Accrued loss on repurchases | $ 1.0 | $ 0.9
Major Customers One and Two [Member] |  |
Purchase Commitment, Excluding Long-term Commitment [Line Items] |  |
Percent of revenue | 22.00% |
Obligation to Repurchase from Dealers [Member] |  |
Purchase Commitment, Excluding Long-term Commitment [Line Items] |  |
Contingent liability on repurchase agreements | $ 749.2 | $ 417.2

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