NOTES PAYABLE - Schedule of Notes Payable (Details) $ in Thousands	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Notes Payable
Debt Instrument [Line Items]
Notes payable	$ 771,897	$ 696,486
Other	(2,964)	(3,187)
Fair value adjustment on convertible notes	393,738	34,910
Unamortized discount and debt issuance costs	1,162,671	728,209
Kentucky note | Notes Payable
Debt Instrument [Line Items]
Notes payable	909	1,032
Stockholder loan | Notes Payable
Debt Instrument [Line Items]
Notes payable	10,000	10,000
Genesis loan | Notes Payable
Debt Instrument [Line Items]
Notes payable	27	552
NYDIG loan | Notes Payable
Debt Instrument [Line Items]
Notes payable	58,190	67,435
Trinity loan | Notes Payable
Debt Instrument [Line Items]
Notes payable	28,154	19,641
Bremer | Notes Payable
Debt Instrument [Line Items]
Notes payable	19,902	15,066
Blockfi | Notes Payable
Debt Instrument [Line Items]
Notes payable	74,130	60,000
Anchor Labs | Notes Payable
Debt Instrument [Line Items]
Notes payable	20,000	0
Mass Mutual Barings | Notes Payable
Debt Instrument [Line Items]
Notes payable	$ 30,000	0
Secured Convertible Notes
Debt Instrument [Line Items]
Convertible debt, valuation technique, ratio of minimum payoff at maturity to carry value	2
Convertible debt, present value of future minimum payments	$ 448,400	441,700
Secured Convertible Notes | Notes Payable
Debt Instrument [Line Items]
Notes payable	$ 224,211	220,871
Other Convertible Notes
Debt Instrument [Line Items]
Convertible debt, valuation technique, ratio of minimum payoff at maturity to carry value	1
Other Convertible Notes | Notes Payable
Debt Instrument [Line Items]
Notes payable	$ 305,782	301,226
Other | Notes Payable
Debt Instrument [Line Items]
Notes payable	$ 592	$ 663