SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Detail)	1 Months Ended	12 Months Ended
	Jan. 31, 2021 shares	Dec. 31, 2021 USD ($) Bitcoins	Dec. 31, 2020 USD ($) Bitcoins	Jul. 01, 2020 USD ($)	Oct. 02, 2019 USD ($) shares
Number of digital assets | Bitcoins		29.0	26.1
Percentage of annual emission expense and credit in the following year			50.00%
Asset retirement obligation		$ 2,700,000	$ 2,300,000
Accretion of asset retirement obligations		$ 140,000	142,000
Discount rate on asset retirement obligations		5.00%
Discount rate on environmental trust liability during current period		3.00%
Environmental trust liability		$ 8,615,000	4,927,000
Right-of-use assets		1,472,000	0
Finance lease obligation		$ 900,000
Share based compensation arrangement,expiration period		10 years
Vesting period		3 years
Benefit for income taxes		$ 408,000	0
Lease term description		The Company also elected to exclude leases with a term of 12 months or less in the recognized ROU assets and lease liabilities, when the likelihood of renewal is not probable.
Equipment [Member]
Right-of-use assets		$ 1,500,000
Maximum [Member]
Lessee, Operating Lease, Term of Contract		3 years
Cost of Sales [Member]
Emissions expense		$ 2,600,000	1,700,000
Purchase of voluntary carbon offset credits		700,000
Voluntary Carbon Offset Credits Expense		600,000
Other Income And Expense [Member]
Accretion of asset retirement obligations		$ 100,000	$ 100,000
Greenidge Blocker Corp [Member]
Preferred unit, issued | shares					15,000
Preferred unit, issuance value				$ 16,300,000	$ 15,000
ASC 842 [Member]
Lease term description		The Company excluded short-term leases having initial terms of 12 months or less from the new guidance as an accounting policy election and recognizes rent expense on a straight-line basis over the lease term.
GGHI Class B Common Stock [Member]
Shares issued in exchange for acquisition of ownership interests | shares	28,000,000