Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation - SIRIUS XM Holdings (Details)

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Stock-Based Compensation - SIRIUS XM Holdings (Details) - USD ($)
$ / shares in Units, $ in Thousands, shares in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Stock-Based Compensation      
Stock-based compensation expense $ 232,000 $ 237,000 $ 256,000
Total unrecognized compensation cost related to unvested equity awards $ 29,000    
Weighted average period of recognition related to unvested equity awards (in years) 1 year 8 months 12 days    
Sirius XM Holdings      
Stock-Based Compensation      
Stock-based compensation expense $ 184,000 $ 197,000 $ 202,000
Sirius XM Holdings | Employee Stock Option [Member]      
Stock-Based Compensation      
Term of option 10 years    
Weighted average volatility rate 32.00% 31.00% 33.00%
Granted 9    
Granted, WAEP $ 4.92    
Weighted average GDFV $ 1.23    
Outstanding options 122    
Exercisable options 80    
Outstanding WAEP $ 5.60    
Exercisable WAEP $ 5.50    
Aggregate intrinsic value, outstanding $ 40,000    
Aggregate intrinsic value, exercisable 36,000    
Total unrecognized compensation cost related to unvested equity awards $ 423,000    
Weighted average period of recognition related to unvested equity awards (in years) 2 years 7 months 6 days    
Sirius XM Holdings | Employee Stock Option [Member] | Minimum      
Stock-Based Compensation      
Vesting period 3 years    
Sirius XM Holdings | Employee Stock Option [Member] | Maximum      
Stock-Based Compensation      
Vesting period 4 years    
Sirius XM Holdings | Restricted Stock      
Stock-Based Compensation      
RSUs granted 47    
RSUs GDFV $ 4.72