Disaggregated Revenue - Schedule of Disaggregates Revenue by Product Line (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Disaggregation Of Revenue [Line Items]
Revenue by product line	$ 27,645	$ 43,505	$ 43,099	$ 47,458	$ 49,570	$ 53,819	$ 57,989	$ 49,367	$ 161,707	$ 210,745
Environmental Technologies and Services
Disaggregation Of Revenue [Line Items]
Revenue by product line									26,152	32,136
Oilfield and Industrial Technologies and Services
Disaggregation Of Revenue [Line Items]
Revenue by product line									135,555	178,609
Oilfield and Industrial Technologies and Services | Technology Products and Services
Disaggregation Of Revenue [Line Items]
Revenue by product line									31,508	50,917
Oilfield and Industrial Technologies and Services | Industrial Products and Services
Disaggregation Of Revenue [Line Items]
Revenue by product line									15,389	14,873
Oilfield and Industrial Technologies and Services | Base Ceramic and Sand Proppants
Disaggregation Of Revenue [Line Items]
Revenue by product line									84,484	$ 112,819
Oilfield and Industrial Technologies and Services | Sublease and Rental Income
Disaggregation Of Revenue [Line Items]
Revenue by product line									$ 4,174