XML 27 R18.htm IDEA: XBRL DOCUMENT v3.22.2
Acquisition - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Oct. 19, 2021
Jun. 30, 2022
Jun. 30, 2022
Business Acquisition [Line Items]      
Goodwill and other intangible assets tax deductible, period 15 years    
Choptank Transport, LLC Member      
Business Acquisition [Line Items]      
Business acquisition date Oct. 19, 2021    
Percentage of equity interests acquired 100.00%    
Consideration for transaction $ 127.6    
Settlement of accounts receivable due from subsidiary 0.3    
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures $ 22.0    
Amortization expense of intangible assets   $ 2.3 $ 4.6
Intangible assets, weighted average useful life     10 years 6 months 25 days