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Subsequent Events - Monthly Distributions Declared by Company's Board of Directors (Details) - Subsequent Event - $ / shares | Sep. 29, 2021 | Sep. 22, 2021 | Aug. 25, 2021 | Aug. 23, 2021 | Jul. 28, 2021 | Jul. 23, 2021 | Jul. 13, 2021
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Series B Preferred Stock |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Distribution per Share |  |  |  |  |  | $ 0.125 | $ 0.375
Series B Preferred Stock | Forecast |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Distribution per Share |  | $ 0.125 |  | $ 0.125 |  |  |
Series C Preferred Stock |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Distribution per Share |  |  |  |  | $ 0.125 |  | 0.375
Series C Preferred Stock | Forecast |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Distribution per Share | $ 0.125 |  | $ 0.125 |  |  |  |
Series D Preferred Stock |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Distribution per Share |  |  |  |  |  | 0.104167 | 0.312501
Series D Preferred Stock | Forecast |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Distribution per Share |  | 0.104167 |  | 0.104167 |  |  |
Common Stock |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Distribution per Share |  |  |  |  |  | $ 0.0451 | $ 0.1353
Common Stock | Forecast |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Distribution per Share |  | $ 0.0451 |  | $ 0.0451 |  |  |

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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