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Intangible Assets and Goodwill (Details) - USD ($)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Intangible Assets, Net      
Amortization expense $ 21,500,000 $ 21,500,000 $ 21,500,000
Amortization Expense      
2023 21,536,000    
2023 21,536,000    
2025 21,536,000    
2026 21,536,000    
2027 21,536,000    
Thereafter 21,539,000    
Changes to carrying amount of goodwill      
Changes to the carry amount of goodwill $ 0 0  
Licensed IP      
Intangible assets      
Weighted- Average Useful Lives (Years) 12 years 6 months    
Finite-lived intangible assets:      
Gross Carrying Amount $ 271,000,000 271,000,000  
Accumulated Amortization 141,781,000 120,245,000  
Net Carrying Amount $ 129,219,000 $ 150,755,000