Quarterly report pursuant to Section 13 or 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Summary of Accounting Standards Update (Details)

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Summary of Accounting Standards Update (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Notes payable   $ 26,599
APIC $ 456,310 192,381
Accumulated deficit $ 129,523 84,563
Cumulative Effect, Period of Adoption, Adjustment    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Notes payable   30,638
APIC   (31,075)
Accumulated deficit   437
Cumulative Effect, Period of Adoption, Adjusted Balance    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Notes payable   57,237
APIC   161,306
Accumulated deficit   $ 85,000