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Shareholders' Equity - Additional Information (Detail) |  |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | ---
Sep. 19, 2024 USD ($) | Oct. 21, 2022 | Sep. 30, 2024 USD ($) Stockholder $ / shares shares | Sep. 30, 2023 USD ($) $ / shares shares | Sep. 30, 2024 USD ($) Stockholder $ / shares shares | Sep. 30, 2023 USD ($) $ / shares shares | Dec. 31, 2023 USD ($)
Equity [Line Items] |  |  |  |  |  |  |
Stock repurchase program, authorized amount |  |  | $ 135,000,000 |  | $ 135,000,000 |  |
Stock repurchase program, remaining authorization to repurchase shares |  |  | $ 101,000,000 |  | $ 101,000,000 |  |
Stock repurchase program, expiration date |  | Dec. 31, 2027 |  |  |  |  |
Dividend payable, per share | $ / shares |  |  | $ 0.35 | $ 0.25 | $ 0.35 | $ 0.25 |
Distribution paid to preferred shareholder |  |  | $ 110,000 | $ 110,000 | $ 330,000 | $ 330,000 |
Accrued distributions |  |  | 0 |  | $ 0 |  | $ 300,000
Distributions declared | $ 4,800,000 |  |  |  |  |  |
O 2024 Q3 Dividends |  |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |  |
Distribution paid to preferred shareholder |  |  | 100,000 |  |  |  |
Approval Date |  |  |  |  | Sep. 19, 2024 |  |
Distributions payment date |  |  |  |  | Oct. 07, 2024 |  |
O 2023 Q3 Dividends |  |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |  |
Distribution paid to preferred shareholder |  |  |  | 100,000 |  |  |
Approval Date |  |  |  |  |  | Sep. 28, 2023 |
Distributions payment date |  |  |  |  |  | Oct. 16, 2023 |
O 2024 M9 Dividends [Member] |  |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |  |
Distribution paid to preferred shareholder |  |  |  |  | $ 300,000 |  |
O 2023 M9 Dividends [Member] |  |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |  |
Distribution paid to preferred shareholder |  |  |  |  |  | $ 300,000 |
Maximum |  |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |  |
Accrued preferred distributions |  |  | 100,000 |  | 100,000 |  | $ 100,000
Class A Common Shares |  |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |  |
Stock repurchase program, authorized amount |  |  | $ 135,000,000 | $ 135,000,000 | $ 135,000,000 | $ 135,000,000 |
Shares surrendered, repurchased or redeemed | shares |  |  |  |  | 16,527 | 468,860 |
Voting rights |  |  |  |  | one |  |
Average repurchase cost per share | $ / shares |  |  |  |  | $ 32 | $ 27.04 |
Number of shareholders | Stockholder |  |  | 135 |  | 135 |  |
Class B Common Shares |  |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |  |
Shares surrendered, repurchased or redeemed | shares |  |  | 0 | 0 | 0 | 0 |
Voting rights |  |  |  |  | ten |  |
Class B Common Shares | Fox Paine Entities |  |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |  |
Number of shareholders | Stockholder |  |  | 2 |  | 2 |  |
Series A Preferred Interest |  |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |  |
Number of shareholders | Stockholder |  |  | 1 |  | 1 |  |

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