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Share Transactions - Narrative (Details) $ / shares in Units, $ in Thousands |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended | 135 Months Ended |  |  |  |  |
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Nov. 03, 2023 shares | Sep. 15, 2023 | Nov. 03, 2023 USD ($) $ / shares shares | Sep. 30, 2023 USD ($) $ / shares shares | Jun. 30, 2023 USD ($) $ / shares shares | Mar. 31, 2023 USD ($) $ / shares shares | Dec. 31, 2022 USD ($) $ / shares shares | Sep. 30, 2022 USD ($) $ / shares shares | Jun. 30, 2022 USD ($) shares | Mar. 31, 2022 USD ($) shares | Sep. 30, 2023 USD ($) $ / shares shares | Sep. 30, 2022 USD ($) shares | Dec. 31, 2022 USD ($) $ / shares shares | Sep. 30, 2023 USD ($) $ / shares shares | Jun. 24, 2022 USD ($) | Oct. 05, 2021 d | Sep. 21, 2021 $ / shares shares | Sep. 20, 2021 shares | Sep. 15, 2021 USD ($)
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of common stock (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  | 54,464,804 |  |  |  |  |
Repurchase of common stock | $ |  |  |  | $ 1,801 |  |  |  | $ 6,711 |  |  | $ 8,619 | $ 6,711 | $ 15,444 | $ 256,493 |  |  |  |  |
Share repurchase program (in shares) |  |  |  |  |  |  |  |  |  |  | 834,680 | 695,476,000 | 1,658,956 | 15,804,563 |  |  |  |  |
Common stock repurchased retired (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  | 15,791,940 |  |  |  |  |
Sale of stock, offering period |  | 12 months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reverse stock splits |  |  |  |  |  |  |  |  |  |  | 0.5 |  |  |  |  |  |  |  |
Common stock, shares issued (in shares) |  |  |  | 54,477,427 |  |  | 55,299,484 |  |  |  | 54,477,427 |  | 55,299,484 | 54,477,427 |  |  | 56,958,440 | 113,916,869 |
Common stock, shares outstanding (in shares) |  |  |  | 54,464,804 |  |  | 55,299,484 | 56,262,964 |  |  | 54,464,804 | 56,262,964 | 55,299,484 | 54,464,804 |  |  | 56,958,440 | 113,916,869 |
Common stock par or stated value per share (in dollars per share) | $ / shares |  |  |  | $ 0.001 |  |  | $ 0.001 |  |  |  | $ 0.001 |  | $ 0.001 | $ 0.001 |  |  | $ 0.001 |  |
Ratio of shares available for trading upon listing |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 33.33% |  |  |
Ratio of shares available for trading 180 days after listing |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 66.66% |  |  |
Number of days after listing, 2/3rd share availability for trading | d |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 180 |  |  |
Number of days after listing, entire share availability for trading | d |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 270 |  |  |
Stock repurchase program, authorized amount | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 60,000 |  |  |  | $ 50,000
Stock repurchase program, additional amount authorized | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10,000 |  |  |  |
Shares Repurchased (in shares) |  |  |  | 168,023 | 328,628 | 338,029 | 963,480 | 695,476 | 0 | 0 | 834,680 |  | 1,658,956 |  |  |  |  |  |
Aggregate Consideration for Repurchased Shares | $ |  |  |  | $ 1,801 | $ 3,226 | $ 3,592 | $ 8,733 | $ 6,711 | $ 0 | $ 0 | $ 8,619 |  | $ 15,444 |  |  |  |  |  |
Repurchase price, average cost per share (in dollars per share) | $ / shares |  |  |  | $ 10.71 | $ 9.81 | $ 10.63 | $ 9.06 | $ 9.65 |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares Repurchased (in shares) |  |  | 165,317 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate Consideration for Repurchased Shares | $ |  |  | $ 1,669 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchase price, average cost per share (in dollars per share) | $ / shares |  |  | $ 10.10 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Treasury stock, retired (in shares) | 15,936,682 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Public Stock Offering |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net proceeds | $ |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,136,244 |  |  |  |  |
Public Stock Offering - Reinvested Shareholder Distributions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of common stock (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  | 13,523,489 |  |  |  |  |
Net proceeds | $ |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 237,451 |  |  |  |  |

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