Intangible and Other Assets - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Intangible And Other Assets [Line Items]
Amortization expense for intangible assets	$ 921	$ 915	$ 1,235
Estimated amortization expense for intangible assets for year one	889
Estimated amortization expense for intangible assets for year two	602
Estimated amortization expense for intangible assets for year three	341
Estimated amortization expense for intangible assets for year four	323
Estimated amortization expense for intangible assets for year five	40
Other assets	5,434	$ 1,524
Russian Proppant | Receivable Related to Money Owed from Sale of Business
Intangible And Other Assets [Line Items]
Other assets	$ 4,000