FAIR VALUE MEASUREMENTS - Schedule of Fair Value Hierarchy of Convertible Notes (Details) $ in Thousands	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Principal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative warrant liability, fair value	$ 0
Liabilities, fair value	529,993
Principal | Public Warrants
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative warrant liability, fair value	0
Principal | Private Placement Warrants
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative warrant liability, fair value	0
Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative warrant liability, fair value	27,996
Liabilities, fair value	951,727
Estimate of Fair Value Measurement | Public Warrants
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative warrant liability, fair value	16,215
Estimate of Fair Value Measurement | Private Placement Warrants
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative warrant liability, fair value	11,781
Estimate of Fair Value Measurement | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative warrant liability, fair value	16,215
Liabilities, fair value	16,215
Estimate of Fair Value Measurement | Level 1 | Public Warrants
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative warrant liability, fair value	16,215
Estimate of Fair Value Measurement | Level 1 | Private Placement Warrants
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative warrant liability, fair value	0
Estimate of Fair Value Measurement | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative warrant liability, fair value	11,781
Liabilities, fair value	11,781
Estimate of Fair Value Measurement | Level 2 | Public Warrants
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative warrant liability, fair value	0
Estimate of Fair Value Measurement | Level 2 | Private Placement Warrants
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative warrant liability, fair value	11,781
Estimate of Fair Value Measurement | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative warrant liability, fair value	0
Liabilities, fair value	923,731
Estimate of Fair Value Measurement | Level 3 | Public Warrants
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative warrant liability, fair value	0
Estimate of Fair Value Measurement | Level 3 | Private Placement Warrants
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative warrant liability, fair value	0
Convertible Notes Mature In April 2025 | Principal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	529,993	$ 522,097
Accrued PIK interest	0	0
Convertible Notes Mature In April 2025 | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	923,731	557,007
Accrued PIK interest	7,851	7,896
Convertible Notes Mature In April 2025 | Estimate of Fair Value Measurement | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Accrued PIK interest	0	0
Convertible Notes Mature In April 2025 | Estimate of Fair Value Measurement | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Accrued PIK interest	0	0
Convertible Notes Mature In April 2025 | Estimate of Fair Value Measurement | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	923,731	557,007
Accrued PIK interest	$ 7,851	7,896
Other Convertible Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible debt, valuation technique, ratio of minimum payoff at maturity to carry value	1
Convertible Notes Issued On April 19, 2021 | Principal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	$ 92,813	91,430
Convertible Notes Issued On April 19, 2021 | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	192,223	101,078
Convertible Notes Issued On April 19, 2021 | Estimate of Fair Value Measurement | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Convertible Notes Issued On April 19, 2021 | Estimate of Fair Value Measurement | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Convertible Notes Issued On April 19, 2021 | Estimate of Fair Value Measurement | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	192,223	101,078
Convertible Notes Issued On April 21, 2021 | Principal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	5,214	5,137
Convertible Notes Issued On April 21, 2021 | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	10,796	5,674
Convertible Notes Issued On April 21, 2021 | Estimate of Fair Value Measurement | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Convertible Notes Issued On April 21, 2021 | Estimate of Fair Value Measurement | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Convertible Notes Issued On April 21, 2021 | Estimate of Fair Value Measurement | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	10,796	5,674
Convertible Notes Issued On April 23, 2021 | Principal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	46,928	46,229
Convertible Notes Issued On April 23, 2021 | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	97,128	51,062
Convertible Notes Issued On April 23, 2021 | Estimate of Fair Value Measurement | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Convertible Notes Issued On April 23, 2021 | Estimate of Fair Value Measurement | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Convertible Notes Issued On April 23, 2021 | Estimate of Fair Value Measurement | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	97,128	51,062
Convertible Notes Issued On April 26, 2021 | Principal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	79,256	78,075
Convertible Notes Issued On April 26, 2021 | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	163,959	86,165
Convertible Notes Issued On April 26, 2021 | Estimate of Fair Value Measurement | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Convertible Notes Issued On April 26, 2021 | Estimate of Fair Value Measurement | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Convertible Notes Issued On April 26, 2021 | Estimate of Fair Value Measurement | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	163,959	86,165
Convertible Notes Issued On August 20, 2021 | Principal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	51,362	50,597
Convertible Notes Issued On August 20, 2021 | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	76,264	50,941
Convertible Notes Issued On August 20, 2021 | Estimate of Fair Value Measurement | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Convertible Notes Issued On August 20, 2021 | Estimate of Fair Value Measurement | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Convertible Notes Issued On August 20, 2021 | Estimate of Fair Value Measurement | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	76,264	50,941
Convertible Notes Issued On September 10, 2021 | Principal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	16,354	16,110
Convertible Notes Issued On September 10, 2021 | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	24,200	16,472
Convertible Notes Issued On September 10, 2021 | Estimate of Fair Value Measurement | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Convertible Notes Issued On September 10, 2021 | Estimate of Fair Value Measurement | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Convertible Notes Issued On September 10, 2021 | Estimate of Fair Value Measurement | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	24,200	16,472
Convertible Notes Issued On September 23, 2021 | Principal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	77,202	76,051
Convertible Notes Issued On September 23, 2021 | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	113,994	77,559
Convertible Notes Issued On September 23, 2021 | Estimate of Fair Value Measurement | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Convertible Notes Issued On September 23, 2021 | Estimate of Fair Value Measurement | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Convertible Notes Issued On September 23, 2021 | Estimate of Fair Value Measurement | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	113,994	77,559
Convertible Notes Issued On September 24, 2021 | Principal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	60,923	60,016
Convertible Notes Issued On September 24, 2021 | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	89,943	61,179
Convertible Notes Issued On September 24, 2021 | Estimate of Fair Value Measurement | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Convertible Notes Issued On September 24, 2021 | Estimate of Fair Value Measurement | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Convertible Notes Issued On September 24, 2021 | Estimate of Fair Value Measurement | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	89,943	61,179
Convertible Notes Issued On September 27, 2021 | Principal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	2,004	1,974
Convertible Notes Issued On September 27, 2021 | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	2,957	2,012
Convertible Notes Issued On September 27, 2021 | Estimate of Fair Value Measurement | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Convertible Notes Issued On September 27, 2021 | Estimate of Fair Value Measurement | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Convertible Notes Issued On September 27, 2021 | Estimate of Fair Value Measurement | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	2,957	2,012
Convertible Notes Issued On October 1, 2021 | Principal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	87,966	86,655
Convertible Notes Issued On October 1, 2021 | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	129,718	87,150
Convertible Notes Issued On October 1, 2021 | Estimate of Fair Value Measurement | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Convertible Notes Issued On October 1, 2021 | Estimate of Fair Value Measurement | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Convertible Notes Issued On October 1, 2021 | Estimate of Fair Value Measurement | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	129,718	87,150
Convertible Notes Issued On November 10, 2021 | Principal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	9,971	9,823
Convertible Notes Issued On November 10, 2021 | Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	14,698	9,819
Convertible Notes Issued On November 10, 2021 | Estimate of Fair Value Measurement | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Convertible Notes Issued On November 10, 2021 | Estimate of Fair Value Measurement | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	0	0
Convertible Notes Issued On November 10, 2021 | Estimate of Fair Value Measurement | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes payable, fair value	$ 14,698	$ 9,819