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Commitments and Contingencies - Additional Information (Detail)
MMBTU in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2020
USD ($)
Mar. 31, 2020
USD ($)
Jun. 30, 2021
USD ($)
MMBTU
Settlement
$ / MMBTU
Mar. 31, 2016
USD ($)
Commitments And Contingencies [Line Items]        
Accrued liabilities for environmental matters     $ 467,000  
Percentage of payment of investigation costs agreed by Hallowell Facility     50.00%  
Insurance coverage of general liability and auto liability risks     $ 100,000,000  
Product liability deductible per claim     $ 250,000  
Confidential settlement agreement with family groups | Settlement     3  
Liability reserve     $ 0  
Accrued prejudgment and post-judgment interest   $ 1,400,000    
Global Industrial Inc [Member]        
Commitments And Contingencies [Line Items]        
Amount awarded for labor, service, materials and other   7,400,000    
Prejudgment interest   $ 1,300,000    
Percentage of accrue post judgement interest   4.25%    
Leidos Constructors, LLC [Member] | Global Industrial Inc [Member] | Accounts Payable [Member]        
Commitments And Contingencies [Line Items]        
Claim amount not approved for payment       $ 3,500,000
Property, Plant and Equipment [Member]        
Commitments And Contingencies [Line Items]        
Amount recovered due settlement $ 1,900,000      
Depreciation expense   $ 500,000    
Cost of Sales [Member]        
Commitments And Contingencies [Line Items]        
Amount recovered due settlement $ 5,700,000      
Natural Gas Purchase Commitments        
Commitments And Contingencies [Line Items]        
Natural gas purchase commitments volume | MMBTU     4.7  
Weighted average cost of natural gas per unit | $ / MMBTU     2.75  
Weighted average purchase price of natural gas     $ 13,100,000  
Weighted average natural gas market value per unit | $ / MMBTU     3.40  
Weighted average natural gas market value     $ 16,100,000