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Debt (Private Placement Debt) (Narrative) (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Aug. 29, 2020 | Aug. 31, 2019
Senior Notes Series A [Member] |  |
Debt Instrument [Line Items] |  |
Interest rate | 2.65% |
Private Placement Debt [Member] | Senior Notes Series A [Member] |  |
Debt Instrument [Line Items] |  |
Principal amount | $ 75,000,000 | $ 75,000,000
Interest rate | 2.65% |
Maturity date | Jul. 28, 2023 |
Private Placement Debt [Member] | Senior Notes Series B [Member] |  |
Debt Instrument [Line Items] |  |
Principal amount | $ 100,000,000 | 100,000,000
Interest rate | 2.90% |
Maturity date | Jul. 28, 2026 |
Private Placement Debt [Member] | Senior Notes Due June 11, 2025 [Member] |  |
Debt Instrument [Line Items] |  |
Principal amount | $ 20,000,000 | $ 20,000,000
Interest rate | 3.79% |
Maturity date | Jun. 11, 2025 |
Private Placement Debt [Member] | Senior notes, Due March 5, 2027 [Member] |  |
Debt Instrument [Line Items] |  |
Principal amount | $ 50,000,000 |
Interest rate | 2.60% |
Maturity date | Mar. 05, 2027 |

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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