Schedule of Financial Information for Operating Segments (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
Segment Reporting Information [Line Items]
Revenue from external customers	$ 27,645	$ 43,505	$ 43,099	$ 47,458	$ 49,570	$ 53,819	$ 57,989	$ 49,367	$ 161,707	$ 210,745
(Loss) income before income taxes									(306,415)	(74,541)
Total assets	191,514				474,366				191,514	474,366
Capital expenditures									2,192	2,039
Depreciation and amortization									30,707	34,605
Oilfield and Industrial Technologies and Services
Segment Reporting Information [Line Items]
Revenue from external customers									135,555	178,609
Operating Segment | Oilfield and Industrial Technologies and Services
Segment Reporting Information [Line Items]
Revenue from external customers									135,555	178,609
(Loss) income before income taxes									(306,827)	(77,264)
Total assets	177,460				456,416				177,460	456,416
Capital expenditures									1,899	1,093
Depreciation and amortization									29,694	33,452
Operating Segment | Environmental Technologies and Services
Segment Reporting Information [Line Items]
Revenue from external customers									26,152	32,136
(Loss) income before income taxes									412	2,723
Total assets	$ 14,054				$ 17,950				14,054	17,950
Capital expenditures									293	946
Depreciation and amortization									$ 1,013	$ 1,153