Business Segment and Related Information (Tables)

6 Months Ended

Jun. 30, 2019

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

Summarized financial information with respect to the reportable segments is as follows:

Three Months Ended June 30, 2019	Environmental Solutions			Maintenance and Technical Services		All Other		Total
Segment revenue	$	36,950		$	83,986	$	—	$	120,936
Segment gross (loss) profit	(9,188		)	7,123		—		(2,065		)
Segment depreciation and amortization expense	1,376			2,012		1,990		5,378

Three Months Ended June 30, 2018	Environmental Solutions		Maintenance and Technical Services		All Other		Total
Segment revenue	$	90,113	$	105,610	$	—	$	195,723
Segment gross profit	22,096		8,453		—		30,549
Segment depreciation and amortization expense	5,334		1,378		1,992		8,704

Six Months Ended June 30, 2019	Environmental Solutions			Maintenance and Technical Services		All Other		Total
Segment revenue	$	95,333		$	188,861	$	—	$	284,194
Segment gross (loss) profit	(921		)	14,235		—		13,314
Segment depreciation and amortization expense	3,690			3,966		3,979		11,635
Expenditures for segment assets	6,957			4,502		32		11,491

Six Months Ended June 30, 2018	Environmental Solutions		Maintenance and Technical Services		All Other		Total
Segment revenue	$	137,897	$	213,355	$	—	$	351,252
Segment gross profit	34,565		15,082		—		49,647
Segment depreciation and amortization expense	10,744		2,407		3,984		17,135
Expenditures for segment assets	3,445		4,788		—		8,233

As of June 30, 2019	Environmental Solutions		Maintenance and Technical Services		All Other		Total
Segment property and equipment, net	$	48,578	$	38,430	$	281	$	87,289
Segment goodwill	57,591		16,622		—		74,213

As of December 31, 2018	Environmental Solutions		Maintenance and Technical Services		All Other		Total
Segment property and equipment, net	$	47,467	$	41,155	$	319	$	88,941
Segment goodwill	57,591		16,622		—		74,213

Reconciliation of Revenue from Segments to Consolidated

The following is a reconciliation of segment gross (loss) profit to net (loss) income:

	Three Months Ended						Six Months Ended
	June 30, 2019			June 30, 2018			June 30, 2019			June 30, 2018
Segment gross (loss) profit	$	(2,065	)	$	30,549		$	13,314		$	49,647
General and administrative expenses	(17,400		)	(18,937		)	(31,385		)	(33,319		)
Interest expense, net	(4,102		)	(5,543		)	(9,154		)	(9,674		)
Income from equity method investment	663			699			1,217			1,286
Income tax provision	5,628			(2,906		)	6,389			(2,906		)
Net (loss) income	$	(17,276	)	$	3,862		$	(19,619	)	$	5,034

Reconciliation of Assets from Segment to Consolidated

The following is a reconciliation of segment assets to total assets:

	As of June 30, 2019		As of December 31, 2018
Segment property and equipment, net	$	87,289	$	88,941
Segment goodwill	74,213		74,213
Non-segment assets	285,758		295,747
Total assets	$	447,260	$	458,901

Schedule of Types of Revenue And Gross Profit Recognized

Summarized financial information with respect to the types of revenue recognized is as follows:

Three Months Ended June 30, 2019	Products		Percentage of Completion		Services		Total
Revenue	$	24,890	$	11,900	$	84,146	$	120,936

Three Months Ended June 30, 2018	Products		Percentage of Completion		Services		Total
Revenue	$	27,401	$	60,969	$	107,353	$	195,723

Six Months Ended June 30, 2019	Products		Percentage of Completion		Services		Total
Revenue	$	47,402	$	46,207	$	190,585	$	284,194

Six Months Ended June 30, 2018	Products		Percentage of Completion		Services		Total
Revenue	$	31,566	$	102,652	$	217,034	$	351,252