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Shareholders' Equity - Narrative (Details)
$ / shares in Units, $ in Millions
1 Months Ended
Jun. 08, 2022
USD ($)
$ / shares
shares
Feb. 28, 2018
USD ($)
Jun. 30, 2022
USD ($)
$ / shares
shares
Feb. 17, 2022
shares
Class of Warrant or Right [Line Items]        
Warrants outstanding (in shares)     33,419,267,000  
Volatility        
Class of Warrant or Right [Line Items]        
Warrants and rights outstanding, measurement input 1.511      
Risk Free Interest Rate        
Class of Warrant or Right [Line Items]        
Warrants and rights outstanding, measurement input 0.0286      
Expected Term        
Class of Warrant or Right [Line Items]        
Warrants exercisable term (in years) 5 years      
At The Market Offering        
Class of Warrant or Right [Line Items]        
Sale of stock, authorized amount | $   $ 500.0    
Offering program remaining capacity | $     $ 360.6  
June 2022 Offering        
Class of Warrant or Right [Line Items]        
Sale of stock, Issuance of common stock (in shares) 33,333,336      
Sale of stock, price (in dollars per share) | $ / shares $ 4.50      
Warrants outstanding (in shares) 33,333,336      
Proceeds from issuance or sale of stock | $ $ 139.0      
Warrant exercise price (in dollars per share) | $ / shares $ 4.37      
Series 2022-A Warrants        
Class of Warrant or Right [Line Items]        
Warrants outstanding (in shares)     33,333,336,000  
Warrants exercisable term (in years) 5 years      
Warrant exercise price (in dollars per share) | $ / shares     $ 4.37  
Warrants and rights outstanding | $ $ 92.9      
Series K Warrants        
Class of Warrant or Right [Line Items]        
Warrants unexercised (in shares)       7,126