Schedule of Financial Information for Operating Segments (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Revenue from external customers	$ 60,341	$ 50,173	$ 43,572	$ 34,670	$ 29,058	$ 20,241	$ 20,651	$ 33,102	$ 188,756	$ 103,051	$ 279,574
Loss before income taxes									(255,143)	(131,208)	(163,749)
Total assets	540,598				723,457				540,598	723,457	836,369
Capital expenditures, net									2,152	6,848	62,747
Depreciation and amortization									45,337	48,451	54,457
Operating Segment | Oilfield Technologies and Services
Segment Reporting Information [Line Items]
Revenue from external customers									165,557	89,351	257,373
Loss before income taxes									(255,097)	(128,128)	(151,772)
Total assets	524,952				709,180				524,952	709,180	817,845
Capital expenditures, net									2,228	7,008	62,996
Depreciation and amortization									44,060	46,871	52,451
Operating Segment | Environmental Products and Services
Segment Reporting Information [Line Items]
Revenue from external customers									23,199	13,700	22,201
Loss before income taxes									(46)	(3,080)	(11,977)
Total assets	$ 15,646				$ 14,277				15,646	14,277	18,524
Capital expenditures, net									(76)	(160)	(249)
Depreciation and amortization									$ 1,277	$ 1,580	$ 2,006