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Basis Of Presentation And Summary Of Significant Accounting Policies (Recently Issued Accounting Standards) (Narrative) (Details) $ in Millions | Sep. 01, 2019 USD ($)
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Subsequent Events [Member] | Accounting Standards Update 2018-11 [Member] |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |
Increase in assets and liabilities | $ 9.0

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