Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation - Incentive Plans and Grants of Stock Awards (Details)

v3.20.4
Stock-Based Compensation - Incentive Plans and Grants of Stock Awards (Details)
shares in Thousands
12 Months Ended
Dec. 18, 2020
Aug. 06, 2020
shares
Dec. 31, 2020
item
$ / shares
shares
Dec. 31, 2019
$ / shares
shares
Dec. 31, 2018
$ / shares
shares
Fair value assumptions          
Dividend rate     0.00% 0.00% 0.00%
Minimum          
Fair value assumptions          
Expected term     5 years 3 months 18 days 5 years 3 months 18 days 5 years 3 months 18 days
Volatility rate     25.10% 25.10% 25.10%
Maximum          
Fair value assumptions          
Expected term     6 years 3 months 18 days 6 years 3 months 18 days 6 years 3 months 18 days
Volatility rate     27.30% 27.30% 27.30%
Options | Series A common stock          
Stock Based Compensation          
Options granted (in shares)     0    
Options | Series B common stock          
Stock Based Compensation          
Options granted (in shares)     0    
Options | CEO          
Stock Based Compensation          
Number of upfront awards | item     2    
Options | CEO | Series C common stock          
Stock Based Compensation          
Options granted (in shares)     389 302  
Options grant date fair value | $ / shares     $ 38.23 $ 31.12  
Options | Employee | Series C common stock          
Stock Based Compensation          
Options granted (in shares)     151 41  
Options grant date fair value | $ / shares     $ 41.06 $ 32.21  
Options | Employee | Series C common stock | Minimum          
Stock Based Compensation          
Vesting period     2 years    
Options | Employee | Series C common stock | Maximum          
Stock Based Compensation          
Vesting period     5 years    
Options | Non-employee | Director | Series C common stock          
Stock Based Compensation          
Vesting period     1 year    
Options granted (in shares)     15 8 10
Options grant date fair value | $ / shares     $ 37.78 $ 31.18 $ 24.04
Time Based RSUs | CEO | Series C common stock          
Stock Based Compensation          
RSUs granted (in shares)     2    
RSUs grant date fair value | $ / shares     $ 120.71    
Percentage of base salary     50.00%    
Number of quarters | item     3    
Percentage of base salary to be waived     50.00%    
RSUs | CEO | Series C common stock          
Stock Based Compensation          
Vesting period       1 year  
RSUs granted (in shares)       25  
RSUs grant date fair value | $ / shares       $ 88.99  
GCI Liberty Inc          
Stock Based Compensation          
Business Combination Shares Issued Ratio 0.580        
GCI Liberty Inc | Options          
Stock Based Compensation          
Business Combination Shares Issued Ratio   0.580      
GCI Liberty Inc | RSUs          
Stock Based Compensation          
Business Combination Shares Issued Ratio   0.580      
GCI Liberty Inc | Restricted Stock          
Stock Based Compensation          
Business Combination Shares Issued Ratio   0.580      
2019 Plan          
Stock Based Compensation          
Number of authorized shares     6,000    
2019 Plan | Minimum          
Stock Based Compensation          
Vesting period     1 year    
Term of awards     7 years    
2019 Plan | Maximum          
Stock Based Compensation          
Vesting period     5 years    
Term of awards     10 years    
GCI Liberty 2018 Plan          
Stock Based Compensation          
Number of authorized shares   3,700