0001844971 2022-12-20 2022-12-20 0001844971 us-gaap:CommonClassAMember 2022-12-20 2022-12-20 0001844971 gree:SeniorNotesDue2026850Member 2022-12-20 2022-12-20 false 0001844971 8-K 2022-12-20 Greenidge Generation Holdings Inc. DE 001-40808 86-1746728 135 Rennell Drive 3rd Floor Fairfield CT 06890 203 718-5960 false false false false Class A common stock, par value $.0001 GREE NASDAQ 8.50% Senior Notes due 2026 GREEL NASDAQ true false