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Significant Accounting Policies - Additional Information (Detail)
12 Months Ended
Dec. 31, 2022
USD ($)
Segment
Dec. 31, 2021
USD ($)
Significant Accounting Policies [Line Items]    
Allowance for doubtful accounts receivable | $ $ 0 $ 0
Number of reportable segments 1  
Number of operating segments 1  
LPG [Member]    
Significant Accounting Policies [Line Items]    
Property, plant and equipment, useful life 30 years