CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue
Total revenue	$ 335,903	$ 161,117	$ 630,672	$ 304,859
Costs of revenue
Depreciation and amortization	29,253	21,018	55,753	42,668
Total costs of revenue	300,241	162,754	570,328	310,893
Gross profit (loss)	35,662	(1,637)	60,344	(6,034)
Operating expenses
Selling, general and administrative	26,695	15,890	55,010	35,784
Depreciation and amortization	526	624	1,093	1,273
Lease abandonment costs	162	222	253	326
Total operating expenses	27,383	16,736	56,356	37,383
Income (loss) from operations	8,279	(18,373)	3,988	(43,417)
Other income (expense)
Gain (loss) on sales of property and equipment and divestitures, net	731	(1,657)	2,384	(2,236)
Interest expense, net	(494)	(400)	(1,214)	(835)
Foreign currency (loss) gain, net	(6)	4	(3)	7
Bargain purchase gain	5,607		17,041
Other	875	895	1,124	(734)
Income (loss) before income tax (expense) benefit	14,992	(19,531)	23,320	(47,215)
Income tax (expense) benefit	(182)	(84)	(396)	179
Equity in losses of unconsolidated entities	(229)		(358)
Net income (loss)	14,581	(19,615)	22,566	(47,036)
Less: net (income) loss attributable to noncontrolling interests	(2,078)	3,048	(3,261)	7,362
Net income (loss) attributable to Select Energy Services, Inc.	12,503	(16,567)	19,305	(39,674)
Water Services
Revenue
Total revenue	195,996	76,651	359,602	140,874
Costs of revenue
Costs of revenue	158,060	70,745	295,106	133,069
Water Infrastructure
Revenue
Total revenue	60,284	33,326	118,838	71,129
Costs of revenue
Costs of revenue	44,939	26,237	89,317	52,636
Oilfield Chemicals
Revenue
Total revenue	79,623	51,140	152,232	92,856
Costs of revenue
Costs of revenue	67,988	44,754	130,151	82,520
Other
Costs of revenue
Costs of revenue	1		1
Class A Common Stock
Other income (expense)
Net income (loss) attributable to Select Energy Services, Inc.	$ 12,503	$ (16,567)	$ 19,305	$ (39,674)
Net income (loss) per share attributable to common stockholders (Note 15):
Basic	$ 0.13	$ (0.19)	$ 0.21	$ (0.47)
Diluted	$ 0.13	$ (0.19)	$ 0.20	$ (0.47)