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Revenue Recognition - Additional Information (Detail) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Jun. 30, 2020
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Unsatisfied Performance Obligations |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Deferred mobilization revenue included within other current liabilities |  |  |  | $ 0.5
Unsatisfied Performance Obligations | Scenario, Forecast |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Deferred mobilization revenue included within other current liabilities | $ 0.2 | $ 0.2 | $ 0.1 |
Vessel Mobilization |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Deferred costs included within other current assets and other assets |  |  |  | 5.7
Vessel Mobilization | Other Assets |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Deferred costs included within other current assets and other assets |  |  |  | $ 0.6

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