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Employee and Retiree Benefits (Tables) | 6 Months Ended
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Feb. 24, 2018
Retirement Benefits [Abstract] |
Schedule of Amounts Recognized in Balance Sheet [Table Text Block] | Deferred compensation liabilities are as follows:
(In thousands) |  | February 24, 2018 |  | August 26, 2017
Non-qualified deferred compensation |  | $ | 15,680 |  |  | $ | 16,476 |
Executive share option plan liability |  | 1,356 |  |  | 1,498 |
SERP benefit liability |  | 2,565 |  |  | 2,534 |
Executive deferred compensation |  | 451 |  |  | 447 |
Officer stock-based compensation |  | 3,292 |  |  | 1,664 |
Total deferred compensation |  | 23,344 |  |  | 22,619 |
Less current portion |  | (4,437 | ) |  | (3,349 | )
Long-term deferred compensation |  | $ | 18,907 |  |  | $ | 19,270 |
Schedule of Net Benefit Costs [Table Text Block] | Net periodic postretirement benefit income consisted of the following components:
|  | Three Months Ended |  | Six Months Ended
(In thousands) |  | February 24, 2018 |  | February 25, 2017 |  | February 24, 2018 |  | February 25, 2017
Interest cost |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 29 |
Service cost |  | — |  |  | — |  |  | — |  |  | 16 |
Amortization of prior service benefit |  | — |  |  | (19,672 | ) |  | — |  |  | (40,444 | )
Amortization of net actuarial loss |  | — |  |  | 7,689 |  |  | — |  |  | 15,648 |
Net periodic postretirement benefit income |  | $ | — |  |  | $ | (11,983 | ) |  | $ | — |  |  | $ | (24,751 | )
Payments for postretirement health care |  | $ | — |  |  | $ | 15 |  |  | $ | — |  |  | $ | 68 |

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- Definition Tabular disclosure of the amounts that are recognized in the balance sheet (or statement of financial position) for pension plans and/or other employee benefit plans, showing separately the assets and current and noncurrent liabilities (if applicable) recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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