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Cash Dividends on Common Stock (Detail) - USD ($) | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Sep. 30, 2023 | Dec. 31, 2023 | Dec. 31, 2022
O 2024 Q2 Dividends [Member] |  |  |  |  |  |  |
Dividends Payable [Line Items] |  |  |  |  |  |  |
Cash dividend declaration date |  |  | Jun. 10, 2024 |  |  |  |
Cash dividend record date |  |  | Jun. 26, 2024 |  |  |  |
Cash dividend distributed date |  |  | Jul. 10, 2024 |  |  |  |
Cash dividend per share |  |  | $ 0.03 |  |  |  |
Cash dividend paid |  |  | $ 840,000 |  |  |  |
O 2024 Q1 Dividends [Member] |  |  |  |  |  |  |
Dividends Payable [Line Items] |  |  |  |  |  |  |
Cash dividend declaration date | Mar. 11, 2024 |  |  |  |  |  |
Cash dividend record date | Mar. 27, 2024 |  |  |  |  |  |
Cash dividend distributed date | Apr. 10, 2024 |  |  |  |  |  |
Cash dividend per share | $ 0.03 |  |  |  |  |  |
Cash dividend paid | $ 836,000 |  |  |  |  |  |
O 2023 A Dividends [Member] |  |  |  |  |  |  |
Dividends Payable [Line Items] |  |  |  |  |  |  |
Cash dividend declaration date |  |  |  |  |  | Dec. 15, 2023 |
Cash dividend record date |  |  |  |  |  | Dec. 29, 2023 |
Cash dividend distributed date |  |  |  |  |  | Jan. 12, 2024 |
Cash dividend per share |  |  |  |  |  | $ 0.03 |
Cash dividend paid |  |  |  |  |  | $ 834,000 |
O 2022 A Dividends [Member] |  |  |  |  |  |  |
Dividends Payable [Line Items] |  |  |  |  |  |  |
Cash dividend declaration date |  |  |  |  |  |  | Dec. 13, 2022
Cash dividend record date |  |  |  |  |  |  | Dec. 28, 2022
Cash dividend distributed date |  |  |  |  |  |  | Jan. 11, 2023
Cash dividend per share |  |  |  |  |  |  | $ 0.03
Cash dividend paid |  |  |  |  |  |  | $ 851,000
O 2023 Q1 Dividends [Member] |  |  |  |  |  |  |
Dividends Payable [Line Items] |  |  |  |  |  |  |
Cash dividend declaration date |  | Mar. 13, 2023 |  |  |  |  |
Cash dividend record date |  | Mar. 24, 2023 |  |  |  |  |
Cash dividend distributed date |  | Apr. 14, 2023 |  |  |  |  |
Cash dividend per share |  | $ 0.03 |  |  |  |  |
Cash dividend paid |  | $ 851,000 |  |  |  |  |
O 2023 Q2 Dividends [Member] |  |  |  |  |  |  |
Dividends Payable [Line Items] |  |  |  |  |  |  |
Cash dividend declaration date |  |  |  | Jun. 12, 2023 |  |  |
Cash dividend record date |  |  |  | Jun. 28, 2023 |  |  |
Cash dividend distributed date |  |  |  | Jul. 14, 2023 |  |  |
Cash dividend per share |  |  |  | $ 0.03 |  |  |
Cash dividend paid |  |  |  | $ 848,000 |  |  |
O 2023 Q3 Dividends [Member] |  |  |  |  |  |  |
Dividends Payable [Line Items] |  |  |  |  |  |  |
Cash dividend declaration date |  |  |  |  | Sep. 12, 2023 |  |
Cash dividend record date |  |  |  |  | Sep. 22, 2023 |  |
Cash dividend distributed date |  |  |  |  | Oct. 06, 2023 |  |
Cash dividend per share |  |  |  |  | $ 0.03 |  |
Cash dividend paid |  |  |  |  | $ 834 |  |

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