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Subsequent Events - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions |  |  | 3 Months Ended |
--- | --- | --- | --- | ---
Nov. 04, 2021 | Nov. 01, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Nov. 30, 2021
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Common stock dividends per share declared |  |  | $ 0.09 | $ 0.09 | $ 0.09 | $ 0.09 | $ 0.09 | $ 0.09 |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Dividend declaration date |  | Nov. 01, 2021 |  |  |  |  |  |  |
Common stock dividends per share declared |  | $ 0.09 |  |  |  |  |  |  |
Dividend record date |  | Nov. 16, 2021 |  |  |  |  |  |  |
Dividend payment date |  | Nov. 30, 2021 |  |  |  |  |  |  |
Subsequent Event [Member] | Revolving Credit Agreement [Member] |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Amended credit agreement maturity period | Nov. 03, 2022 |  |  |  |  |  |  |  |
Scenario Forecast [Member] |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Quarterly dividend payable, aggregate amount |  |  |  |  |  |  |  |  | $ 4.4

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