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Revenue Recognition - Additional Information (Detail) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Jun. 30, 2020
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