Quarterly report pursuant to Section 13 or 15(d)

Stockholders Equity (Registration Statements and At-the-Market Offering) (Details)

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Stockholders Equity (Registration Statements and At-the-Market Offering) (Details) - USD ($)
$ in Millions
 3 Months Ended
Jan. 02, 2024
Mar. 31, 2024
Mar. 31, 2023
May 24, 2021
Jul. 31, 2018
At the Market Offering          
Stockholders' Equity          
Agent commission (as a percent)         3.00%
Issuance of common shares (in shares)   0 0    
Registration Statements          
Stockholders' Equity          
Sale of Stock aggregate offering price       $ 200.0  
Shares available for future issuance   $ 195.6      
Fortress Biotech, Inc [Member]          
Stockholders' Equity          
Shares issued for services (in shares) 353,086