NOTES PAYABLE - Narrative (Details) $ / shares in Units, $ in Thousands, shares in Millions	1 Months Ended															3 Months Ended
	Mar. 31, 2022 USD ($) employee $ / shares shares	Feb. 28, 2022 USD ($)	Jan. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($) agreement	Nov. 30, 2021 USD ($)	Oct. 31, 2021 USD ($) tranche	Aug. 31, 2021 USD ($)	Jul. 31, 2021 USD ($)	May 31, 2021 USD ($)	Apr. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Jan. 31, 2021 USD ($) $ / shares	Oct. 31, 2020 USD ($)	Jul. 31, 2020 USD ($) installment	Dec. 31, 2018 USD ($)	Mar. 31, 2022 USD ($) employee $ / shares shares	Dec. 31, 2021 USD ($) agreement	Mar. 31, 2021 USD ($)	Dec. 31, 2022	Jan. 19, 2022 $ / shares	Sep. 30, 2021 USD ($)	Nov. 30, 2011
Debt Instrument [Line Items]
Warrants outstanding (in shares) | shares	14.9															14.9
Exercise price of warrants (in dollars per share) | $ / shares	$ 11.50															$ 11.50
Warrants term	5 years															5 years
Convertible debt, conversion price (in dollars per share) | $ / shares																				$ 8.00
Fair value adjustments on convertible notes																$ 386,037		$ 0
Stockholder Loan Warrants
Debt Instrument [Line Items]
Warrants outstanding (in shares) | shares			0.2
Exercise price of warrants (in dollars per share) | $ / shares												$ 4.21
Proceeds from issuance of warrants												$ 500
Convertible Notes
Debt Instrument [Line Items]
Interest rate per annum	10.00%															10.00%
Paid-in-kind interest																$ 15,200
Convertible notes payable, payable in cash percent	4.00%			4.00%												4.00%	4.00%
Convertible notes payable, payable in kind percent	6.00%			6.00%												6.00%	6.00%
Notes Payable
Debt Instrument [Line Items]
Notes payable	$ 771,897			$ 696,486												$ 771,897	$ 696,486
Kentucky note | Secured Promissory Notes Payable
Debt Instrument [Line Items]
Debt instrument, term															5 years
Note payable face amount															$ 2,400
Interest rate per annum															5.00%
Effective interest rate															5.00%
Kentucky note | Notes Payable
Debt Instrument [Line Items]
Notes payable	909			1,032												909	1,032
Genesis loan | Secured Debt
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity														$ 13,000
Proceeds from lines of credit														$ 5,300
Genesis loan | Secured Debt | Line of Credit
Debt Instrument [Line Items]
Debt instrument, term														20 months
Interest rate per annum														16.00%
Effective interest rate														28.00%
Number of installment | installment														3
Genesis loan | Notes Payable
Debt Instrument [Line Items]
Notes payable	27			552												27	552
NYDIG loan | Equipment Loan
Debt Instrument [Line Items]
Debt instrument, term					24 months			24 months	24 months				24 months
Interest rate per annum								14.25%	14.25%				15.00%									11.00%
Effective interest rate								16.00%	17.00%				16.00%									11.00%
Proceeds from issuance of debt					$ 33,400			$ 26,100	$ 13,400		$ 3,800		$ 800
NYDIG loan | Notes Payable
Debt Instrument [Line Items]
Notes payable	58,190			67,435												58,190	67,435
Stockholder loan
Debt Instrument [Line Items]
Warrants term												2 years
Stockholder loan | Equipment Loan
Debt Instrument [Line Items]
Debt instrument, term												2 years
Note payable face amount												$ 10,000
Interest rate per annum												10.00%
Effective interest rate												20.00%
Proceeds from issuance of debt												$ 9,500
Stockholder loan | Notes Payable
Debt Instrument [Line Items]
Notes payable	$ 10,000			10,000												$ 10,000	10,000
Secured Convertible Notes
Debt Instrument [Line Items]
Convertible debt, conversion price, percentage of financing price	80.00%															80.00%
Convertible debt, valuation technique, ratio of minimum payoff at maturity to carry value	2															2
Convertible debt, amount owed if held to maturity	$ 448,400															$ 448,400
Convertible debt, amount owed if prepaid	767,300															767,300
Secured Convertible Notes | Convertible Notes
Debt Instrument [Line Items]
Note payable face amount										$ 215,000
Secured Convertible Notes | Notes Payable
Debt Instrument [Line Items]
Notes payable	224,211			220,871												224,211	220,871
Unsecured Convertible Notes Issued Aug-Nov 2021 | Convertible Notes
Debt Instrument [Line Items]
Note payable face amount																					$ 299,800
Stockholder loan
Debt Instrument [Line Items]
Repayments of debt										$ 30,000
Blockfi
Debt Instrument [Line Items]
Convertible debt, conversion price (in dollars per share) | $ / shares																				$ 8.00
Convertible debt, conversion price, percentage of financing price																				80.00%
Blockfi | Estimate of Fair Value Measurement
Debt Instrument [Line Items]
Convertible notes payable, fair value	923,731			557,007												923,731	557,007
Blockfi | Estimate of Fair Value Measurement | Level 2
Debt Instrument [Line Items]
Convertible notes payable, fair value	0			0												0	0
Blockfi | Estimate of Fair Value Measurement | Fair Value, Recurring
Debt Instrument [Line Items]
Convertible notes payable, fair value	923,700															923,700
Blockfi | Principal
Debt Instrument [Line Items]
Convertible notes payable, fair value	529,993			522,097												529,993	522,097
Blockfi | Principal | Fair Value, Recurring | Level 2
Debt Instrument [Line Items]
Convertible notes payable, fair value	530,000															530,000
Blockfi | Convertible Notes
Debt Instrument [Line Items]
Amortization of debt issuance costs																13,100
Blockfi | Notes Payable
Debt Instrument [Line Items]
Notes payable	530,000															530,000
Trinity loan | Notes Payable
Debt Instrument [Line Items]
Notes payable	28,154			19,641												28,154	19,641
Trinity loan | Revolving Credit Facility
Debt Instrument [Line Items]
Effective interest rate							11.00%
Line of credit facility, maximum borrowing capacity							$ 30,000
Proceeds from lines of credit		$ 10,000		5,000	$ 14,000		$ 1,000
Line of credit facility, expiration period							36 months
Bremer | Equipment Loan
Debt Instrument [Line Items]
Debt instrument, term						60 months
Interest rate per annum						5.50%
Effective interest rate						5.60%
Line of credit facility, maximum borrowing capacity						$ 16,200
Proceeds from lines of credit																4,800	15,200
Number of installment | tranche						2
Line of credit facility, additional borrowing capacity	$ 9,600															$ 9,600
Debt instrument, covenant terms, fixed charge coverage ratio	1															1
Debt instrument, interest rate buydown, amount	$ 800															$ 800
Debt instrument, interest rate buydown terms, minimum continued operation period required																5 years
Minimum number of additional full time employees | employee	13															13
Interest rate buydown terms, full time employee employment period																2 years
Bremer | Equipment Loan | Forecast
Debt Instrument [Line Items]
Debt instrument, covenant terms, minimum debt service coverage ratio																			1.2
Bremer | Notes Payable
Debt Instrument [Line Items]
Notes payable	$ 19,902			$ 15,066												$ 19,902	$ 15,066
Blockfi | Equipment Loan
Debt Instrument [Line Items]
Effective interest rate				13.10%													13.10%
Line of credit facility, maximum borrowing capacity				$ 110,000													$ 110,000
Proceeds from lines of credit			$ 20,000	$ 60,000
Debt instrument, number of lending agreements | agreement				2													2
Line of credit facility, remaining borrowing capacity	30,000															30,000
Blockfi | Notes Payable
Debt Instrument [Line Items]
Notes payable	$ 74,130			$ 60,000												74,130	$ 60,000
Blockfi Loan, Credit Agreement One | Equipment Loan
Debt Instrument [Line Items]
Debt instrument, term				24 months
Interest rate per annum				9.70%													9.70%
Effective interest rate				10.10%													10.10%
Line of credit facility, maximum borrowing capacity				$ 10,000													$ 10,000
Blockfi Loan, Credit Agreement Two | Equipment Loan
Debt Instrument [Line Items]
Debt instrument, term				24 months
Interest rate per annum				13.10%													13.10%
Line of credit facility, maximum borrowing capacity				$ 100,000													$ 100,000
Anchor Labs | Equipment Loan
Debt Instrument [Line Items]
Debt instrument, term	24 months
Note payable face amount	$ 20,000															$ 20,000
Effective interest rate	12.50%															12.50%
Anchor Labs | Notes Payable
Debt Instrument [Line Items]
Notes payable	$ 20,000			0												$ 20,000	0
Mass Mutual Barings | Equipment Loan
Debt Instrument [Line Items]
Debt instrument, term	36 months
Note payable face amount	$ 100,000															$ 100,000
Effective interest rate	9.80%															9.80%
Proceeds from lines of credit	$ 30,000
Mass Mutual Barings | Notes Payable
Debt Instrument [Line Items]
Notes payable	$ 30,000			$ 0												$ 30,000	$ 0