MANDATORILY REDEEMABLE PREFERRED STOCK - Dividends Declared And Cash Paid (Details) - $ / shares  | 
6 Months Ended | |||||
|---|---|---|---|---|---|---|
Aug. 31, 2021  | 
Jul. 30, 2021  | 
Jun. 30, 2021  | 
May 28, 2021  | 
Apr. 30, 2021  | 
Sep. 30, 2021  | 
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| Series E Term Preferred Stock | ||||||
| Dividends Payable [Line Items] | ||||||
| Dividend paid per share of Series E term preferred stock (in USD per share) | $ 0.0796875 | $ 0.1328125 | $ 0.1328125 | $ 0.1328125 | $ 0.1328125 | $ 0.6109375 | 
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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| X | ||||||||||
- Definition Aggregate dividends paid during the period for each share of preferred stock outstanding. No definition available. 
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| X | ||||||||||
- Details 
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