XML 16 R39.htm IDEA: XBRL DOCUMENT v3.19.3
Commitments and Contingencies - Additional Information (Detail)
MMBTU in Millions
 1 Months Ended 9 Months Ended
Mar. 31, 2019
USD ($)
Sep. 30, 2019
USD ($)
MMBTU
Settlement
$ / MMBTU
Dec. 31, 2018
USD ($)
Mar. 31, 2016
USD ($)
Commitments And Contingencies [Line Items]        
Accrued liabilities for environmental matters   $ 183,000    
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    
Litigation liability paid $ 18,500,000      
Estimated litigation liability   $ 0 $ 18,450,000  
Global Industrial Inc [Member]        
Commitments And Contingencies [Line Items]        
Estimated litigation liability       $ 0
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
Natural Gas Purchase Commitments [Member]        
Commitments And Contingencies [Line Items]        
Natural gas purchase commitments volume | MMBTU   4.6    
Weighted average cost of natural gas per unit | $ / MMBTU   2.50    
Weighted average purchase price of natural gas   $ 11,500,000    
Weighted average natural gas market value per unit | $ / MMBTU   2.12    
Weighted average natural gas market value   $ 9,700,000