Disaggregated Revenue - Schedule of Disaggregates Revenue by Product Line (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Disaggregation Of Revenue [Line Items]
Revenue by product line	$ 57,989	$ 43,572	$ 107,356	$ 78,242
Environmental Technologies and Services
Disaggregation Of Revenue [Line Items]
Revenue by product line	8,201	6,370	15,100	11,419
Oilfield and Industrial Technologies and Services
Disaggregation Of Revenue [Line Items]
Revenue by product line	49,788	37,202	92,256	66,823
Oilfield and Industrial Technologies and Services | Technology Products and Services
Disaggregation Of Revenue [Line Items]
Revenue by product line	12,786	8,526	22,656	17,730
Oilfield and Industrial Technologies and Services | Industrial Products and Services
Disaggregation Of Revenue [Line Items]
Revenue by product line	3,269	2,552	6,562	4,418
Oilfield and Industrial Technologies and Services | Base Ceramic and Sand Proppants
Disaggregation Of Revenue [Line Items]
Revenue by product line	$ 33,733	$ 26,124	$ 63,038	$ 44,675