Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2018	May 01, 2018
Entity Registrant Name	Ranger Energy Services, Inc.
Entity Central Index Key	0001699039
Document Type	10-Q
Document Period End Date	Mar. 31, 2018
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q1
Class A Common Stock
Entity Common Stock, Shares Outstanding		8,900,792
Class B Common Stock
Entity Common Stock, Shares Outstanding		6,866,154