XML 80 R69.htm IDEA: XBRL DOCUMENT v3.25.1
CAPITAL STOCK (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 4 Months Ended 12 Months Ended
Apr. 22, 2025
Mar. 19, 2025
Apr. 07, 2022
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Dec. 31, 2023
Feb. 28, 2025
Feb. 03, 2025
Sep. 09, 2024
Jan. 29, 2024
Class of Stock [Line Items]                      
Common stock, authorized (in shares)       350,000,000   350,000,000          
Common stock, par value (in dollars per share)       $ 0.00001   $ 0.00001          
Common stock, outstanding (in shares)       261,644,590   224,848,992          
Common stock, issued (in shares)       261,644,590   224,848,992          
Preferred stock, authorized (in shares)       25,000,000   25,000,000          
Preferred stock, par value (in dollars per share)       $ 0.00001   $ 0.00001          
Preferred stock, issued (in shares)       0   0          
Preferred stock, outstanding (in shares)       0   0          
Issuance and sale of equity securities                   $ 75.0  
Warrant to purchase common stock (in shares)               1,153,846 1,153,846   3,076,923
Exercise price (in dollars per share)               $ 1.30 $ 1.30   $ 1.30
Warrant exercise period               8 years 8 years    
Vifor (International) Ltd. | License                      
Class of Stock [Line Items]                      
Unregistered stock held by customer (in shares)       7,571,429              
At-The-Market Sale Agreement, Authorized April 2022                      
Class of Stock [Line Items]                      
Number of shares sold in offering (in shares)         13,261,311   6,189,974        
Sale of stock, consideration received, gross         $ 19.2   $ 6.8        
Aggregate net proceeds from offering         $ 18.7   $ 6.7        
At-The-Market Sale Agreement, Authorized April 2022, Amended                      
Class of Stock [Line Items]                      
Number of shares sold in offering (in shares)       9,437,364   14,271,631          
Sale of stock, consideration received, gross       $ 18.7   $ 24.3          
Aggregate net proceeds from offering       $ 18.4   $ 23.8          
Public Stock Offering                      
Class of Stock [Line Items]                      
Number of shares sold in offering (in shares)   25,000,000                  
Aggregate net proceeds from offering   $ 46.5                  
Sale of stock, price per share (in dollars per share)   $ 2.00                  
Public Stock Offering | Subsequent Event                      
Class of Stock [Line Items]                      
Aggregate net proceeds from offering $ 1.6                    
Public Stock Offering - Underwriting Agreement                      
Class of Stock [Line Items]                      
Sale of stock, price per share (in dollars per share)   $ 1.88                  
Over-Allotment Option                      
Class of Stock [Line Items]                      
Number of shares sold in offering (in shares)   3,750,000                  
Underwriters allotment option, term   30 days                  
Over-Allotment Option | Subsequent Event                      
Class of Stock [Line Items]                      
Number of shares sold in offering (in shares) 850,000                    
Maximum | At-The-Market Sale Agreement, Authorized April 2022                      
Class of Stock [Line Items]                      
Common stock sales agreement amount     $ 26.0