v3.25.2
Cover
Jun. 17, 2025
Entity Listings [Line Items]  
Document Type 8-K
Document Period End Date Jun. 17, 2025
Entity Registrant Name Greenidge Generation Holdings Inc.
Entity Incorporation, State or Country Code DE
Entity File Number 001-40808
Entity Tax Identification Number 86-1746728
Entity Address, Address Line One 1159 Pittsford-Victor Road
Entity Address, Address Line Two Suite 240
Entity Address, City or Town Pittsford
Entity Address, State or Province NY
Entity Address, Postal Zip Code 14534
City Area Code 315
Local Phone Number 536-2359
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company true
Entity Ex Transition Period false
Amendment Flag false
Entity Central Index Key 0001844971
Class A common stock, par value $.0001  
Entity Listings [Line Items]  
Title of 12(b) Security Class A common stock, par value $.0001
Trading Symbol GREE
Security Exchange Name NASDAQ
8.50% Senior Notes due 2026  
Entity Listings [Line Items]  
Title of 12(b) Security 8.50% Senior Notes due 2026
Trading Symbol GREEL
Security Exchange Name NASDAQ