Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2022	Oct. 31, 2022
Document and Entity Information
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2022
Document Transition Report	false
Entity File Number	001-38066
Entity Registrant Name	SELECT ENERGY SERVICES, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	81-4561945
Entity Address, Address Line One	1233 W. Loop South, Suite 1400
Entity Address, City or Town	Houston
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77027
City Area Code	713
Local Phone Number	235-9500
Title of 12(b) Security	Class A common stock, par value $0.01 per share
Trading Symbol	WTTR
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q3
Entity Central Index Key	0001693256
Amendment Flag	false
Class A Common Stock
Document and Entity Information
Entity Common Stock, Shares Outstanding		98,102,383
Class B Common Stock
Document and Entity Information
Entity Common Stock, Shares Outstanding		16,221,101