| Consolidated Statement of Equity (Parenthetical) - $ / shares | 3 Months Ended | 8 Months Ended | 
|---|---|---|
| Sep. 30, 2021 | Sep. 30, 2021 | |
| Statement of Stockholders' Equity [Abstract] | ||
| Distributions paid to Certificateholders (usd per share) | $ 0.69 | $ 0.98 | 
| X | ||||||||||
| 
- Definition Dividends, Trust Certificates, Per Share No definition available. 
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| X | ||||||||||
| 
- References No definition available. 
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