Commitments and Contingencies - Additional Information (Detail) MMBTU in Millions	6 Months Ended
	Jun. 30, 2020 USD ($) MMBTU Settlement $ / MMBTU	Mar. 31, 2016 USD ($)
Commitments And Contingencies [Line Items]
Accrued liabilities for environmental matters	$ 245,000
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
Property, Plant and Equipment [Member]
Commitments And Contingencies [Line Items]
Accrued accounts payable	3,900,000
Depreciation expense	500,000
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
Natural Gas Purchase Commitments [Member]
Commitments And Contingencies [Line Items]
Natural gas purchase commitments volume | MMBTU	6.5
Weighted average cost of natural gas per unit | $ / MMBTU	1.98
Weighted average purchase price of natural gas	$ 12,900,000
Weighted average natural gas market value per unit | $ / MMBTU	1.72
Weighted average natural gas market value	$ 11,200,000