INCOME PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Calculation of basic and diluted earnings per share:
Antidilutive shares	999,050	725,634	720,953	913,042
Outstanding options (as a percent)	100.00%	54.00%	72.00%	68.00%
Net income	$ 11,671	$ 14,899	$ 21,231	$ 18,774
Net income attributable to noncontrolling interests	(1,024)	(2,031)	(2,345)	(2,281)
Net income attributable to Select Water Solutions, Inc.	10,647	12,868	18,886	16,493
Add: Reallocation of net income attributable to noncontrolling interests for the dilutive effect of restricted stock	9	19	29	27
Add: Reallocation of net income attributable to noncontrolling interests for the dilutive effect of performance units	18	21	36	28
Add: Reallocation of net income attributable to noncontrolling interests for the dilutive effect of stock options		2	2	1
Net income attributable to Select Water Solutions, Inc. - diluted	10,674	12,910	18,953	16,549
Class A common stock
Calculation of basic and diluted earnings per share:
Net income attributable to Select Water Solutions, Inc.	10,647	12,868	18,886	16,493
Add: Reallocation of net income attributable to noncontrolling interests for the dilutive effect of restricted stock	9	19	29	27
Add: Reallocation of net income attributable to noncontrolling interests for the dilutive effect of performance units	18	21	36	28
Add: Reallocation of net income attributable to noncontrolling interests for the dilutive effect of stock options		2	2	1
Net income attributable to Select Water Solutions, Inc. - diluted	$ 10,674	$ 12,910	$ 18,953	$ 16,549
Weighted-average shares of common stock outstanding - basic	101,527,407	100,128,034	101,161,203	99,676,319
Weighted-average shares of common stock outstanding - diluted	102,860,676	101,904,886	103,060,298	101,513,975
Income per share, Basic (in dollars per share)	$ 0.1	$ 0.13	$ 0.19	$ 0.17
Income per share, Diluted (in dollars per share)	$ 0.1	$ 0.13	$ 0.18	$ 0.16
Class A common stock \| Restricted stock
Calculation of basic and diluted earnings per share:
Dilutive effect	433,194	820,945	831,622	889,647
Class A common stock \| Performance share units
Calculation of basic and diluted earnings per share:
Dilutive effect	900,075	882,371	1,024,541	930,733
Class A common stock \| Stock Options
Calculation of basic and diluted earnings per share:
Dilutive effect		73,536	42,933	17,276
Class B common stock
Calculation of basic and diluted earnings per share:
Weighted-average shares of common stock outstanding - basic	16,221,101	16,221,101	16,221,101	16,221,101
Weighted-average shares of common stock outstanding - diluted	16,221,101	16,221,101	16,221,101	16,221,101

Select Water Solutions, Inc. 10-Q