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CONVERTIBLE NOTES - Narrative (Details)
1 Months Ended 3 Months Ended
Mar. 13, 2023
USD ($)
Mar. 29, 2022
USD ($)
$ / shares
shares
Mar. 21, 2022
USD ($)
tranche
$ / shares
shares
Apr. 04, 2018
USD ($)
Mar. 27, 2018
USD ($)
day
Mar. 29, 2023
USD ($)
Mar. 31, 2023
USD ($)
$ / shares
shares
Mar. 31, 2022
USD ($)
Mar. 24, 2023
shares
Mar. 15, 2023
Dec. 31, 2022
USD ($)
Debt Instrument [Line Items]                      
Share price (in usd per share) | $ / shares   $ 1.48 $ 1.86                
Gain on extinguishment of debt             $ 0 $ 3,366,000      
Ad Hoc Noteholder Group | Liabilities, Outstanding Notes | Lender Concentration Risk                      
Debt Instrument [Line Items]                      
Risk concentration 85.00%                    
Prepaid Forward                      
Debt Instrument [Line Items]                      
Funded prepaid forward             $ 45,100,000        
Stock underlying the prepaid forward (in shares) | shares             1,858,500        
Share price (in dollars per share) | $ / shares             $ 24.25        
Stock underlying the prepaid forward (in shares) | shares                 1,858,500    
Forbearance Agreement                      
Debt Instrument [Line Items]                      
Default indebtedness outstanding $ 15,000,000                    
Fee per $1,000 principal amount 0.005                    
Forbearance Agreement | Ad Hoc Noteholder Group                      
Debt Instrument [Line Items]                      
Aggregate principal amount             $ 48,300,000        
Forbearance premium             200,000        
Forbearance Agreement | Other Holders                      
Debt Instrument [Line Items]                      
Aggregate principal amount             8,300,000        
Forbearance premium $ 200,000                    
Amortization of debt premium           $ 200,000          
Convertible notes | 2.50% Convertible notes due 2023                      
Debt Instrument [Line Items]                      
Aggregate principal amount         $ 150,000,000            
Interest rate         2.50%         2.50%  
Over-allotment option, term         13 days            
Over-allotment option, amount         $ 22,500,000            
Proceeds from over-allotment option       $ 21,500,000              
Proceeds from issuance of debt       $ 171,500,000              
Debt term         5 years            
Effective interest rate         3.20%            
Repurchase principal balance         100.00%            
Accrued interest             700,000        
Long-term debt             56,595,000       $ 56,413,000
Total             56,595,000       56,595,000
Convertible notes | 2.50% Convertible notes due 2023 | Level 2                      
Debt Instrument [Line Items]                      
Fair value                     $ 51,900,000
Convertible notes | 2.50% Convertible notes due 2023 | March 2022 Exchange Transaction                      
Debt Instrument [Line Items]                      
Notes exchanged     $ 14,000,000                
Number of tranches | tranche     8                
Conversion numerator     155.67                
Restructuring of debt               3,400,000      
Shares issued (in shares) | shares     0.02264                
Convertible notes | 2.50% Convertible notes due 2023 | Exchange Agreement                      
Debt Instrument [Line Items]                      
Gain on extinguishment of debt             0 $ 3,366,000      
Convertible notes | 2.50% Convertible notes due 2023 | Option one to convert                      
Debt Instrument [Line Items]                      
Stock price conversion threshold, percentage         130.00%            
Consecutive trading days | day         20            
Threshold trading days | day         30            
Convertible notes | 2.50% Convertible notes due 2023 | Option two to convert                      
Debt Instrument [Line Items]                      
Consecutive trading days | day         5            
Threshold trading days | day         5            
Trading price threshold, percentage         98.00%            
Convertible notes | Forbearance Agreement                      
Debt Instrument [Line Items]                      
Fair value             16,900,000        
Total             $ 56,600,000        
Convertible notes | Forbearance Agreement | Measurement Input, Discount Rate                      
Debt Instrument [Line Items]                      
Notes measurement rate             0.276        
Convertible notes | New Notes                      
Debt Instrument [Line Items]                      
Fair value     $ 11,500,000                
Gain on extinguishment of debt     $ 2,900,000                
Convertible notes | New Notes | Exchange Agreement                      
Debt Instrument [Line Items]                      
Convertible notes value   $ 1,300,000                  
Notes exchanged   1,800,000                  
Gain on extinguishment of debt   $ 500,000                  
Shares issued (in shares) | shares   849,713