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v3.21.2

Capital Stock - Series A Preferred Stock (Details) $ / shares in Units, $ in Thousands |  | 9 Months Ended | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 15, 2020 USD ($) D M $ / shares shares | Sep. 30, 2021 USD ($) $ / shares | Sep. 30, 2020 USD ($) | Dec. 31, 2020 $ / shares | Dec. 15, 2025 $ / shares | Dec. 15, 2024 $ / shares | Dec. 15, 2023 $ / shares | Dec. 15, 2022 $ / shares | Dec. 15, 2021 $ / shares
Sale of stock |  |  |  |  |  |  |  |  |
Gross proceeds from issuance of preferred stock | $ |  | $ 40,000 |  |  |  |  |  |  |
Stock issuance costs | $ |  | $ 3,248 | $ 231 |  |  |  |  |  |
Preferred stock, par value (in dollars per share) |  | $ 0.05 |  | $ 0.05 |  |  |  |  |
8.625% Series A Cumulative, Perpetual Preferred Stock |  |  |  |  |  |  |  |  |
Sale of stock |  |  |  |  |  |  |  |  |
Shares issued (in shares) | shares | 984,000 |  |  |  |  |  |  |  |
Preferred stock, dividend rate (as a percent) | 8.625% | 8.625% |  | 8.625% |  |  |  |  |
Purchase price (in dollars per share) | $ 25.00 |  |  |  |  |  |  |  |
Gross proceeds from issuance of preferred stock | $ | $ 24,600 |  |  |  |  |  |  |  |
Stock issuance costs | $ | 2,000 |  |  |  |  |  |  |  |
Net proceeds from issuance of stock | $ | $ 22,600 |  |  |  |  |  |  |  |
Liquidation preference (in dollars per share) | $ 25.00 |  |  |  |  |  |  |  |
Number of days in year over which dividend will be prorated and computed | D | 360 |  |  |  |  |  |  |  |
Number of months in year over which dividend will be prorated and compute | M | 12 |  |  |  |  |  |  |  |
Number of days in month over which dividend will be prorated and computed | D | 30 |  |  |  |  |  |  |  |
Preferred stock, par value (in dollars per share) | $ 0.05 |  |  |  |  |  |  |  |
Redemption price (in dollars per share) | 25.00 |  |  |  |  |  |  |  |
Redemption price at which company has option to redeem outstanding shares upon the occurrence of a delisting event or change of control event (in dollars per share) | $ 25.00 |  |  |  |  |  |  |  |
Share cap (in shares) | shares | 1.46071 |  |  |  |  |  |  |  |
Trading days | D | 10 |  |  |  |  |  |  |  |
8.625% Series A Cumulative, Perpetual Preferred Stock | Directors [Member] |  |  |  |  |  |  |  |  |
Sale of stock |  |  |  |  |  |  |  |  |
Shares issued (in shares) | shares | 200,000 |  |  |  |  |  |  |  |
Purchase price (in dollars per share) | $ 25.00 |  |  |  |  |  |  |  |
Gross proceeds from issuance of preferred stock | $ | $ 5,000 |  |  |  |  |  |  |  |
8.625% Series A Cumulative, Perpetual Preferred Stock | Chief Executive Officer |  |  |  |  |  |  |  |  |
Sale of stock |  |  |  |  |  |  |  |  |
Shares issued (in shares) | shares | 8,000 |  |  |  |  |  |  |  |
Purchase price (in dollars per share) | $ 25.00 |  |  |  |  |  |  |  |
Gross proceeds from issuance of preferred stock | $ | $ 200 |  |  |  |  |  |  |  |
Forecast [Member] | 8.625% Series A Cumulative, Perpetual Preferred Stock |  |  |  |  |  |  |  |  |
Sale of stock |  |  |  |  |  |  |  |  |
Redemption price (in dollars per share) |  |  |  |  | $ 25.00 | $ 25.25 | $ 25.50 | $ 25.75 | $ 26.00

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