Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2017	Jun. 09, 2017
Entity Registrant Name	SOLARIS OILFIELD INFRASTRUCTURE, INC.
Entity Central Index Key	0001697500
Document Type	10-Q
Document Period End Date	Mar. 31, 2017
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	No
Entity Filer Category	Non-accelerated Filer
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q1
Common Class B
Entity Common Stock, Shares Outstanding		32,365,823
Class A common stock
Entity Common Stock, Shares Outstanding		10,748,676