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Fair Value Measurement (Details)
Dec. 31, 2025
Dec. 31, 2024
Senior Secured Notes Due July 2030    
Fair Value Measurement    
Fair value percentage 87.90% 87.90%
Senior Secured Notes Due July 2026    
Fair Value Measurement    
Fair value percentage   20.00%
Senior Secured Notes Due April 2026    
Fair Value Measurement    
Fair value percentage   15.00%