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Equities Dividends Per Share (Details) - $ / shares | 3 Months Ended | 6 Months Ended
--- | --- | ---
Feb. 28, 2021 | Feb. 29, 2020 | Feb. 28, 2021 | Feb. 29, 2020
8% Cumulative Redeemable [Member] |  |  |  |
8% Cumulative Redeemable [Line Items] |  |  |  |
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears | $ 0.50 | $ 0.50 | $ 1.50 | $ 1.50
Class B, Series 1 Preferred Stock [Member] |  |  |  |
8% Cumulative Redeemable [Line Items] |  |  |  |
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears | 0.49 | 0.49 | 1.48 | 1.48
Class B, Series 2 Preferred Stock [Member] |  |  |  |
8% Cumulative Redeemable [Line Items] |  |  |  |
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears | 0.44 | 0.44 | 1.33 | 1.33
Class B, Series 3 Preferred Stock [Member] |  |  |  |
8% Cumulative Redeemable [Line Items] |  |  |  |
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears | 0.42 | 0.42 | 1.27 | 1.27
Class B, Series 4 Preferred Stock [Member] |  |  |  |
8% Cumulative Redeemable [Line Items] |  |  |  |
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears | $ 0.47 | $ 0.47 | $ 1.41 | $ 1.41

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- Definition Per share amount of cumulative preferred dividends in arrears. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21488-112644 + Details
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