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Convertible Senior Notes - Narrative (Details)
3 Months Ended 11 Months Ended
Feb. 05, 2021
USD ($)
patent
$ / shares
Dec. 31, 2021
USD ($)
shares
Dec. 31, 2021
USD ($)
shares
Sep. 30, 2021
USD ($)
Feb. 02, 2021
$ / shares
Debt Instrument [Line Items]          
Embedded conversion derivative   $ 42,821,000 $ 42,821,000 $ 48,208,000  
Senior notes hedge balance   42,821,000 42,821,000 $ 48,208,000  
Convertible Debt | 2026 Notes          
Debt Instrument [Line Items]          
Debt issued $ 155,300,000        
Debt interest rate 0.75%        
Debt conversion ratio (per $1,000 principal amount) 0.0479731000        
Debt conversion price (in dollars per share) | $ / shares $ 20.85        
Conversion price premium percentage         0.375
Proceeds from debt offerings, net of discounts, commissions and expenses $ 149,700,000        
Debt issuance costs $ 5,500,000        
Remaining unamortized debt discount   32,618,000 32,618,000    
Convertible Debt | 2026 Notes | Common Stock Outstanding          
Debt Instrument [Line Items]          
Share price (in dollars per share) | $ / shares         $ 15.16
Convertible Debt | 2026 Notes | During any calendar quarter commencing after the calendar quarter ending on June 30, 2021          
Debt Instrument [Line Items]          
Debt conversion price percentage 1.30        
Trading days in period | patent 20        
Consecutive trading days in period | patent 30        
Convertible Debt | 2026 Notes | Measurement period          
Debt Instrument [Line Items]          
Debt conversion price percentage 0.98        
Consecutive trading days in period | patent 5        
Convertible Debt | 2026 Notes | Observation period          
Debt Instrument [Line Items]          
Consecutive trading days in period | patent 40        
Convertible Debt | 2026 Notes | Embedded conversion derivative          
Debt Instrument [Line Items]          
Payment costs related to hedge transactions $ 9,300,000        
Embedded conversion derivative 33,200,000 42,821,000 42,821,000    
Value of remaining embedded derivative allocated to host contract $ 116,500,000        
Derivative interest rate 6.71%        
Remaining unamortized debt discount   $ 32,600,000 $ 32,600,000    
Remaining debt discount amortization period 4 years 1 month 6 days        
Convertible Debt | Additional Notes          
Debt Instrument [Line Items]          
Option period to purchase additional notes 13 days        
Additional aggregate principal amount purchased $ 20,250,000        
Convertible Debt | Notes Hedge          
Debt Instrument [Line Items]          
Debt conversion price (in dollars per share) | $ / shares $ 20.85        
Conversion price premium percentage         0.750
Number of shares that can initially be converted into common stock | patent 7,400,000        
Strike price of warrants (in dollar per share) | $ / shares $ 26.53        
Senior notes hedge balance $ 33,200,000        
Shares purchased under the notes hedge (in shares) | shares     0    
Increase in additional paid-in-capital for sale or warrants $ 23,900,000        
Warrants exercised (in shares) | shares     0    
Warrants outstanding (in shares) | shares   0 0    
Convertible Debt | Notes Hedge | Observation period          
Debt Instrument [Line Items]          
Consecutive trading days in period | patent 80        
Incremental dilution of earnings per share of warrants (in shares) | shares   0