DEBT - Narrative (Details)								3 Months Ended		9 Months Ended		12 Months Ended
	Jun. 20, 2023 USD ($)	Jan. 30, 2023 USD ($) $ / shares	Dec. 31, 2022 USD ($)	Dec. 20, 2022 USD ($)	Aug. 10, 2022 USD ($) renewalOption	Mar. 21, 2022 USD ($)	Mar. 18, 2022 USD ($) renewalOption	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)	Aug. 11, 2023 USD ($)	Aug. 10, 2023 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Debt Instrument [Line Items]
Interest expense								$ 3,040,000	$ 5,430,000	$ 9,725,000	$ 15,692,000
Debt outstanding								94,005,000		94,005,000
Accrued interest added to principal										400,000
Facilities owned and operated, facility and land to be sold, covenant, minimum cash													$ 6,000,000	$ 10,000,000
Amended principal amount					$ 16,400,000
Percentage of proceeds received from sale of stock to be used to repay debt					65.00%
Notional value										94,000,000		$ 157,500,000
Fair value of debt			$ 88,500,000					38,600,000		38,600,000		88,500,000
Miners
Debt Instrument [Line Items]
Exchange of assets for reduction in debt		$ 50,000,000
Miner Deposits And Manufacture Coupons
Debt Instrument [Line Items]
Exchange of assets for reduction in debt		8,500,000
Greenidge And Noteholder
Debt Instrument [Line Items]
Interest rate					7.50%
Master Equipment Financing Agreement
Debt Instrument [Line Items]
Aggregate principal loan amount						$ 81,000,000
Interest rate						13.00%
Promissory Note
Debt Instrument [Line Items]
Interest rate							6.00%
Aggregate principal amount							$ 26,500,000
Number of renewal options | renewalOption					4		5
Renewal term					30 days		30 days
Secured Debt | Secured Promissory Note
Debt Instrument [Line Items]
Principal payments plus interest payments on debt	$ 1,500,000	0		$ 1,500,000
Gains (losses) on restructuring of debt		0			$ 0
Purchase of stock by counterparty		$ 1,000,000
Purchase of stock by counterparty, price per share (in dollars per share) | $ / shares		$ 7.50
Amendment fee, paid-in-kind		$ 1,000,000
Amendment fee, paid-in-kind, price per share (in dollars per share) | $ / shares		$ 7.50
Mandatory monthly payments, percentage of net proceeds of sales of equity		15.00%
Master Equipment Finance Agreement
Debt Instrument [Line Items]
Borrowed amount partially funded			17,000,000									17,000,000			$ 54,000,000
Debt term						25 months
Equipment Finance Agreement
Debt Instrument [Line Items]
Unamortized discounts and debt issuance costs			5,747,000					$ 4,555,000		$ 4,555,000		5,747,000
Equipment Finance Agreement | Miner Equipment Note L
Debt Instrument [Line Items]
Principal payments plus interest payments on debt			1,000,000
Equipment Finance Agreement | Promissory Note
Debt Instrument [Line Items]
Interest rate								7.50%		7.50%
Aggregate principal amount								$ 26,500,000		$ 26,500,000
Secured Debt | Master Equipment Finance Agreement
Debt Instrument [Line Items]
Debt outstanding		$ 17,300,000	$ 75,800,000									$ 75,800,000
Extinguishment of debt		$ 58,500,000
Interest rate		15.00%
Cash balance (in excess)		$ 10,000,000
Debt, voluntary, paid-in-kind		10,200,000
Senior Notes | Senior Secured Loan
Debt Instrument [Line Items]
Gains (losses) on restructuring of debt		$ 0
Interest rate								15.00%		15.00%
Aggregate principal amount								$ 17,322,000		$ 17,322,000
Senior Notes | Senior Unsecured Notes
Debt Instrument [Line Items]
Interest rate								8.50%		8.50%						8.50%
Aggregate principal amount								$ 72,200,000		$ 72,200,000
Senior notes																$ 72,200,000
Senior Notes | Senior Unsecured Notes | Debt Instrument, Redemption, Period One
Debt Instrument [Line Items]
Debt instrument, redeem percentage										102.00%
Senior Notes | Senior Unsecured Notes | Debt Instrument, Redemption, Period Two
Debt Instrument [Line Items]
Debt instrument, redeem percentage										101.00%
Senior Notes | Senior Unsecured Notes | Debt Instrument, Redemption, Period Three
Debt Instrument [Line Items]
Debt instrument, redeem percentage										100.00%
Senior Notes | Senior Unsecured Notes | Debt Instrument, Redemption, Period Four
Debt Instrument [Line Items]
Debt instrument, redeem percentage										100.50%