v3.26.1
Cover
Jul. 01, 2026
Document Information [Line Items]  
Document Type 8-K
Document Period End Date Jul. 01, 2026
Entity Registrant Name SOLARIS ENERGY INFRASTRUCTURE, INC.
Entity Incorporation, State or Country Code DE
Entity File Number 001-38090
Entity Tax Identification Number 81-5223109
Entity Address, Address Line One 9651 Katy Freeway
Entity Address, Address Line Two Suite 300
Entity Address, City or Town Houston
Entity Address, State or Province TX
Entity Address, Postal Zip Code 77024
City Area Code 281
Local Phone Number 501-3070
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Class A Common Stock, $0.01 par value
Trading Symbol SEI
Entity Emerging Growth Company false
Amendment Flag false
Entity Central Index Key 0001697500
New York Stock Exchange  
Document Information [Line Items]  
Security Exchange Name NYSE
NYSE Texas, Inc.  
Document Information [Line Items]  
Security Exchange Name NYSETX