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Subsequent Events - Additional Information (Detail)
$ / shares in Units, $ in Millions
1 Months Ended 6 Months Ended
Apr. 30, 2025
USD ($)
$ / shares
Mar. 31, 2025
PartnershipUnit
Mar. 31, 2024
PartnershipUnit
Heating Oil Businesses      
Subsequent Event [Line Items]      
Number of businesses acquired | PartnershipUnit   1 3
Subsequent Event | Dividend Declared      
Subsequent Event [Line Items]      
Distribution declared | $ / shares $ 0.185    
Partners capital projected distribution amount on annualized basis | $ / shares 0.74    
Minimum dividend distribution per unit | $ / shares $ 0.0675    
Amount to paid to common unit holders $ 6.4    
Amount to paid to the General Partner 0.4    
Incentive distribution to the General Partner 0.4    
Incentive distributions to management $ 0.4    
Dividend paid date May 07, 2025    
Dividend record date Apr. 28, 2025