Annual report pursuant to Section 13 and 15(d)

STOCKHOLDERS??? EQUITY (Details)

v3.22.4
STOCKHOLDERS’ EQUITY (Details)
 1 Months Ended 3 Months Ended 12 Months Ended
Aug. 31, 2021
USD ($)
Aug. 06, 2021
USD ($)
$ / shares
shares
Mar. 31, 2018
shares
Mar. 31, 2021
USD ($)
shares
Dec. 31, 2022
USD ($)
shares
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 30, 2022
USD ($)
Apr. 29, 2020
USD ($)
$ / shares
shares
Class of Stock [Line Items]                  
Proceeds from common stock issuances         $ 309,021,000 $ 421,809,000 $ 103,664,000    
Proceeds from warrant exercise         $ 0 $ 8,177,000 $ 1,000,000    
Conversion ratio         1        
2020 Unsecured Note | Senior Notes                  
Class of Stock [Line Items]                  
Number of shares for purchase under warrant (in shares) | shares                 20,000,000
Common stock purchase price (in dollars per share) | $ / shares                 $ 1.542
Fair value of warrant                 $ 16,100,000
2019 Term Loan | Loans Payable                  
Class of Stock [Line Items]                  
Number of shares for purchase under warrant (in shares) | shares       6,000,000          
Fair value of warrant         $ 6,300,000        
Proceeds from warrant exercise       $ 8,200,000          
Convertible preferred stock                  
Class of Stock [Line Items]                  
Sale of stock, number of shares issued in transaction (in shares) | shares     6,100,000            
At-the-Market Equity Offering Programs                  
Class of Stock [Line Items]                  
Sale of stock, number of shares issued in transaction (in shares) | shares         67,700,000        
Proceeds from sale of common stock, net of fees and commissions         $ 299,700,000        
Equity Offering In Aug 2021 | Common Stock                  
Class of Stock [Line Items]                  
Sale of stock, number of shares issued in transaction (in shares) | shares   35,000,000              
Proceeds from sale of common stock, net of fees and commissions   $ 100,800,000              
Sale of stock, offering price (in USD per share) | $ / shares   $ 3.00              
Option to purchase additional shares (in shares)   $ 5,300,000              
Option to purchase additional shares, period   30 days              
Over-allotment option | Common Stock                  
Class of Stock [Line Items]                  
Proceeds from sale of common stock, net of fees and commissions $ 15,100,000                
New At-the-Market Equity Offering Program                  
Class of Stock [Line Items]                  
Sale of stock, authorized aggregate sales proceeds amount               $ 500,000,000  
Sale of stock, available aggregate sales proceeds amount with date         $ 500,000,000